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diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 0000000..6833f05 --- /dev/null +++ b/.gitattributes @@ -0,0 +1,3 @@ +* text=auto +*.txt text +*.md text diff --git a/77026-0.txt b/77026-0.txt new file mode 100644 index 0000000..db9c6ac --- /dev/null +++ b/77026-0.txt @@ -0,0 +1,959 @@ + +*** START OF THE PROJECT GUTENBERG EBOOK 77026 *** + + + + + + Bulletin No. 21, Division of Botany. PLATE I. + +[Illustration: FIG. 1.--VANILLA IN FLOWER--SOME OF THE FLOWERS ALREADY +GROWN INTO SMALL PODS.] + +[Illustration: FIG. 2.--VANILLA IN FAIR CROP, ON BARS AND POSTS UNDER +SHADE.] + + + + + BULLETIN NO. 21. S. P. I., No. 2. + + U. S. DEPARTMENT OF AGRICULTURE, + DIVISION OF BOTANY. + + VANILLA CULTURE + AS PRACTICED IN THE SEYCHELLES ISLANDS. + + BY + + S. J. GALBRAITH. + + [Illustration] + + WASHINGTON: + GOVERNMENT PRINTING OFFICE. + 1898. + + + + +CONTENTS. + + + Page. + + Introduction to Mr. Galbraith’s paper, by D. G. Fairchild 7 + + General conditions 9 + + Starting a vanillery 10 + + Preparing the vines for cropping 13 + + Pollination of the flowers 15 + + Curing the pods for market 17 + + Miscellaneous information and notes 21 + + Summary 23 + + + + +ILLUSTRATIONS. + + + PLATE. + + PLATE I. Page. + + Fig. 1, vanilla in flower--some of the flowers already + grown into small pods; fig. 2, vanilla in fair + crop, on bars and posts under shade Frontispiece + + TEXT FIGURES. + + FIG. 1. Hand pollination of the vanilla flower 16 + + FIG. 2. Plan of curing house 19 + + + + +INTRODUCTION TO MR. GALBRAITH’S PAPER. + +By D. G. FAIRCHILD. + + +The following paper on vanilla culture has been prepared by Mr. S. +J. Galbraith, of Mahé, Seychelles Islands, who was for some time +associated with Mr. W. T. Swingle, agricultural explorer of the Section +of Seed and Plant Introduction, in the preparation of a joint memoir on +the culture and disease of vanilla in those islands. + +As the second part of the report, which deals with the disease, +has not been completed, it seems desirable not to delay longer the +publication of this part, relating to vanilla culture, inasmuch as it +is practically complete in itself. + +Although the vanilla is a plant native to America, its culture is now +carried on most extensively and successfully in Bourbon, Seychelles, +Mauritius, Madagascar, and other islands lying in the Tropics in the +Indian Ocean east of Africa, as well as in the Island of Tahiti in the +South Pacific. + +The vanilla industry is a very important one in the Seychelles Islands, +and Mr. Galbraith, himself for many years a successful planter, is in a +most favorable position to write on the subject of vanilla culture. + +The vanilla is a climbing orchid, the nearly mature pod of which is +the part known to trade and that which furnishes vanilla flavoring. +The plant grows wild only in the Tropics, and is so sensitive to cold +that its culture can be successful only in regions absolutely free from +frost. + +The recent annexation of the Hawaiian Islands, Puerto Rico, and other +tropical territory has added to our domain regions which there is +reason to believe will prove admirably suited to the cultivation of +this plant. + +The competition of artificial vanilla, prepared synthetically by +chemical methods, has not proved to be of any considerable importance. +Indeed, the price of good vanilla has risen during recent years +probably because of the ravages of disease in the islands where it is +principally grown. + +Prospective growers will be greatly aided in finding suitable climates +and soil by Mr. Galbraith’s recommendations on these points. + +The disease mentioned in various places in this bulletin is the one +described in the second as yet unpublished part of the original memoir. +It is of fungous origin, of great destructiveness, and spreads during +moist hot weather very rapidly, frequently causing total destruction +of large plantations in a month. During recent years it has seriously +crippled the vanilla industry in Seychelles, Bourbon, and other islands +of the Indian Ocean. This malady spreads with extraordinary rapidity +where plants are crowded and allowed to intertwine, and for this +reason Mr. Galbraith advises against close planting, though in regions +free from the disease such culture might well prove more profitable +than the methods here advocated. + +Without going into details, it may be unhesitatingly affirmed from the +results of Mr. Galbraith’s very thorough and painstaking studies that +the malady is of such great destructiveness, spreads so rapidly, and +is so difficult to control, that it would, if ever introduced, ruin +probably forever the prospects of successful vanilla culture in our new +territories. + +_It becomes, then, a matter of absolutely vital importance to keep the +disease out of Hawaii and Puerto Rico if it is ever proposed to grow +vanilla there._ + +No surer method of destroying in advance the hope of establishing this +highly profitable industry could be conceived than that of carrying +out the first thought that would occur to an enterprising prospective +cultivator, viz, of sending to the islands of the Indian Ocean, where +vanilla culture is most highly developed, for a stock of plants to use +in starting a vanillery. + +The only possible way of safeguarding our new domains against this +disease is to prohibit absolutely the introduction of living vanilla +plants except by the Government, and then only after inspection by a +competent plant pathologist. + +Fortunately vanilla plants may be multiplied very rapidly if placed +under favorable conditions, and from a small stock of disease-free +plants it would soon be possible to stock all the islands. + +The Secretary of Agriculture proposes to secure such perfectly healthy +plants for distribution to planters wishing to experiment with vanilla +culture, and it is hoped that meanwhile, in the absence of any definite +legislation on the subject, public opinion will prevent any promiscuous +importation of vanilla cuttings. + +As soon as the plants begin to yield pods the services of an expert +should be secured to superintend the curing, for which specially +constructed apparatus is required, and to report on the quality of the +product. + +There is every prospect for the successful establishment of vanilla +culture in Hawaii and Puerto Rico, provided suitable soils and climates +be found, and provided the disease be excluded. Certainly an industry +which yielded to the small island of Tahiti in 1897 $172,295, to the +Seychelles $246,600 in 1897, and to Réunion $560,563 in 1892 is worthy +the serious attention of prospective cultivators. The desirability of +publishing a practical paper on the subject at this time is emphasized +by the conviction that both Hawaii and Puerto Rico offer suitable +fields for the introduction of this industry. + + + + +VANILLA CULTURE AS PRACTICED IN THE SEYCHELLES ISLANDS. + +By S. J. GALBRAITH. + + + + +GENERAL CONDITIONS. + + +Vanilla cuttings are said to have been first introduced into the +Seychelles Islands in 1866, probably from Bourbon (La Réunion), where +the plant was grown extensively after sugar began to fail, about +1850. Plantations were gradually established and extended by the +multiplication of these original plants and from others subsequently +imported, and for many years now the colony’s prosperity has largely +depended on vanilla. + +If kept free from disease it is a plant of extraordinary vitality; and +here, where moisture and heat, its main requirements, are both ample, +the sort of soil it is grown in seems to be of no great importance, +provided that, if it be very poor, the roots are kept well supplied +with manure. It is cultivated in the Seychelles from near sea level +to 1,800 feet altitude, and does well (except for disease) at all +altitudes between these extremes. + +The rainfall is generally about 100 inches--that is in Port Victoria, +which lies low; in the hills the precipitation is probably from 10 to +30 per cent greater; and in drier districts, away from high lands, +where little timber is left, it must be considerably less. The fall is +fairly evenly distributed throughout the year, but a dry spell, which +is necessary to bring vanilla into flower, is to be looked for in July, +August, or September, while the heaviest rains most frequently come +in December. Even where rain has not fallen for some time the air is +very moist, and for want of more exact information on this head it may +be stated that, generally speaking, in the hills common table salt +will deliquesce in a day or two if left uncovered. The range of shade +temperature for day and night, from sea level to 1,800 feet, may be +put at 90° to 70° F. The former is exceptional, the latter frequent, +especially in early morning when the monsoon is blowing. Occasionally +68° may be registered, but seldom lower. Of soils, three very different +sorts may be mentioned, in all of which vanilla does well here: (1) +Rich vegetable mold, common enough in forest land as a thin surface +skin, and also occurring deeper in valley bottoms. For a quick growth +this is excellent. (2) A greasy red clay, also in fair quantity, on +which vanilla makes good growth. (3) Coarse quartz sand, or gravel, +apparently derived from disintegrated granite, not common, but met with +in considerable patches here and there. Though so unpromising to look +at, this is, perhaps, the best of all. It gives free drainage to the +roots, and in wet years plants fixed on it are more likely to crop than +those on closer soils, while with ample manuring they grow remarkably +well. + +The manner of setting out plantations in the Seychelles has undergone +changes within the last twelve years. Formerly plantations were seen +with the rows of vines planted so close together as scarce to leave +room for workers to pass between them. The yield per acre under such +conditions was sometimes enormous, but when disease once started in a +vanillery thus arranged its destruction was rapid and complete, so this +system has been mostly given up. Since the loss of so many close-lined +plantations the distance between the rows has been increased. Living +wood, i. e., small trees, are used as supports for the vines, these +being festooned from fork to fork; but many planters have made use +of hard-wood posts and bars, the former being notched on top and the +latter laid in the notches, resting thus from 4 to 6 feet from the +ground, according to fancy. Over these bars the plants are hung (Pl. +1), being looped up as growth is put on. Wire is sometimes also used +instead of horizontal bars. It is much cheaper, but otherwise has +disadvantages, notable among which is that it sways with wind and is +liable to break the vines, the curvature being too sharp over such a +small round surface. However, when plants thicken into a mass this last +drawback mostly disappears. + +A third, and, as the writer believes, much better way of growing +vanilla, is now more generally coming into practice. This is to plant +each creeper on a tree of its own, and where land is cheap it is an +advantage if these are well apart. So arranged, the general maintenance +of a vanillery is certainly more expensive, inasmuch as isolated plants +require more manure than when the same number are closely grouped +together. The work of flower pollination and crop gathering is also +more laborious. But more than a counterpoise to these disadvantages is +the increased security this method of planting gives against wholesale +destruction from disease; for when so arranged a sick plant can be +removed and destroyed with greater chance of this being done before any +of its neighbors become affected; whereas when growths of different +plants are interwoven, either in their roots or shoots, it is difficult +to know when enough has been taken up, and there is every likelihood of +the disease becoming established beyond control. + + + + +STARTING A VANILLERY. + + +To give some notion of how a vanilla plantation is set out and carried +on in this colony, it will be convenient to assume that the tree method +of planting is the one adopted. A great variety of trees will serve +the purpose. Here, on most properties, there is an abundance ready +for the work; but of course where this is not the case suitable trees +must first be planted. In selecting trees those should be chosen which +do not grow too large, but give moderate foliage (about half shade) +without ever losing all their leaves at once, and having plenty of +branches from 5 to 7 feet from the ground, affording forks enough to +train the vines through. + +No hard and fast rule can be laid down as to the distance trees +should be kept apart. Here formerly, as above stated, vanilla was +grown in dense masses with great success for a time. Elsewhere it may +be advantageously so grown now. However, it is safe to state that +overcrowding in any kind of planting invites disease, and the farther +plants are kept apart the more likely are they to remain healthy. A +4-foot radius would be a moderate allowance for the roots of a vigorous +vanilla plant, and if 1 foot is kept clear around the circle allowed to +each plant’s roots this would give 9 feet as the distance between the +trees. It would be difficult to insure the plants being kept distinct +in less space. Where suitable trees are already growing on the land to +be planted, these can be thinned out if too close, or they may be left +in small lots of three or four or more together, a sufficient clear +space intervening between each lot; but in that case if one vine of a +group showed disease the whole would have to be removed. Many trees +stand topping, and it is a great advantage when they do, for on being +cut 7 feet or so from the ground branches spring from near the cut part +at a convenient height, and the best situated of those can be chosen to +train the vines through, the rest that grow awkwardly being removed. +About 5 feet from the base is low enough to allow any to grow. + +Trees being in readiness, planting may be done at any time of year +here. If during a wet spell, vanilla will sprout all the quicker; +should it be dry, the plants will delay a little, but there is no +fear of their missing if properly planted, and the one danger point +to guard is where the vine leaves the earth. This part of the vine is +burnt through if not shaded with grass or leaves. However, this also +would only mean a little delay in the start of growth; for though they +take some time longer about it, vanilla cuttings will grow well enough +if merely tied to the trees with their lower ends some inches clear +of the ground. Illustrative of the extreme vitality of plants under +adverse conditions, it may be mentioned that in neglected plantations, +where the vines have been allowed to climb well up into the branches of +good-sized trees, and then been broken in attempting to get them down, +the broken portions, sometimes partly swinging free, have remained +green and capable of growth for upwards of a year, sending down long +aerial roots 15 or 20 feet in length, and in some cases where these +have escaped injury the broken plant may reestablish connection with +the soil and start to grow again. If planted clear of the ground and +merely tied to the supporting tree, it is advisable to tie two or three +large leaves round each vine for the distance of 3 feet up; thus shaded +the aerial roots quickly burst through the stem, and, getting something +to cling to at once, soon make their way to earth without injury. + +In starting a new vanillery, where the estate has no plants these +are readily purchased here at small cost. From 2 to 3 rupees (55 to +90 cents) per 100 fathoms is the usual rate for cuttings, the fathom +being what a man can span with outspread arms, a good sweep of the +vine hanging in a curve between his hands. Where choice is possible, +although oldish cuttings will grow pretty well, it is best to have the +plants of recent growth; in fact, growing shoots, cut off close to +where they spring from the parent vine, are preferable. At their point +of origin the nodes for some distance are close together, and though +roots will strike from any joints, they have a natural tendency to do +so quicker at the shoot’s base. As to the length of cuttings to plant, +opinions differ; but there can be no question that the longer cuttings +produce cropping plants sooner than the short ones. If a 2 or 3-foot +branch is planted, the shoot it gives is invariably more slender and +slower of growth than would be that from a 6-foot cutting, and up to +10 or 12 feet every advantage lies with the longer plants, except the +additional expense. + +The question as to whether cuttings of that length are to be planted +whole or divided into two or three plants should be settled by their +cost. It is usual here to loosen the soil with a hoe where vanilla is +to be planted, and bury the end, laid horizontally, an inch or two in +the earth. Quite as good a way is merely to press the lower part of +the plant into the soft soil until it is flush with the surface. On +sloping land loosened soil washes away sooner with heavy rain, and in +such situations it is best to leave the ground quite undisturbed. In +any case the leaves on that part of the vine which rests in or on the +ground are cut off fairly close to the stem, and an arm full of leaves, +fern, grass, or forest sweepings laid on top to the depth of 3 or 4 +inches, for a couple of feet around the plant. Its roots will not need +to be mulched for a greater distance than that for some months to come, +and to cover a larger area would be useless. As new top dressings are +laid on, which must be done when the first supply rots down and becomes +thin, these can be gradually extended to allow of more root spread, +till the limit of 4 feet radius is reached. If well covered, the roots +do not run much; only starved vines run far with their roots, seeking +nourishment; where this is plentiful they mat in and beneath it. Being +entirely surface feeders, should any make their way beyond the cover +they can be gently lifted and tucked under the decaying leaves, etc.; +but this is a hint that the plant needs a new supply of top dressing. +The number of joints laid on or in the soil will vary with the length +of the plant, but should not be less than three for this mode of +planting, while for long cuttings six or seven joints are needed for a +quick start. + +If of sufficient length, the free end of the planted vine is hung +through a fork of the supporting tree, but it is also advisable to tie +it in two or three places to the tree to hinder swinging and chafing. +The material used for these ties here is a fiber called _vacoa_[1] +which rots in about a year, by which time the plants should have +tendril-like roots enough to steady themselves. When once properly +planted, the cuttings will need little or no attention for some months, +but when the growth becomes vigorous the shoots must be looked after. +Such of them as have grown clear of their supports are hitched up and, +if long enough, hung through one of the forks. An occasional tie here +may also be necessary, but in general a leaf or two of the growing part +can be hooked on to some other fixed part of the vine, and in a few +days, unless blown loose, the tendrils will have fastened to the leaf, +and thus support the plant. Shoots must not be allowed to climb very +high among branches of the supporting tree, especially if there be many +and close together, or there will be breakages in getting them down. +For this purpose, when they get beyond hand reach, a forked stick 6 or +7 feet long is useful. The fork is worked between the tree and climbing +vine, and its tendrils in succession are broken by pushing and twisting +the stick when they are within the fork. The last two or three tendrils +are easily broken or leave the tree without breaking, and care should +be taken when the vine is nearly clear to catch the stem of it high up, +within the stick’s fork; it can then be lowered gently without fear of +breaking. + +Some judgment is necessary in selecting the fork of the tree through +which each shoot is to hang, a fork whose height fits in with a natural +bend of the vine, if it has one, being chosen; otherwise one whose +height takes the vine between joints is best, since if bent at a joint +the vine is apt to snap, especially so when in vigorous growth, being +then full of sap and brittle. In good growing weather--i. e., warm, +still, and moist--healthy, well-nourished vanilla vines grow very +rapidly, an inch per day being no uncommon rate. + + +FOOTNOTES: + +[1] Obtained from a species of screw pine, _Pandanus utilis_. + + + + +PREPARING THE VINES FOR CROPPING. + + +If the plants have done well they should be ready for such preparation +in about eighteen months, more or less, according to the season. +Formerly in this colony they were allowed to grow on until a spell of +dry weather set in prior to the usual blossoming time. The growing +ends were then cut off and all new shoots removed as they showed till +flowers began to come or till the season for them was past. When the +dry spell proved a long one, this seemed to answer pretty well; and, +indeed, under these circumstances flowers would come in any case, +whether growth was checked or not. But now it is more usual to stop the +growing ends some nine or ten months, in the first instance, before +flowering time. In the majority of cases the terminal bud will push, +and this new shoot should also be removed when 5 or 6 inches long--not +earlier, else the next to the last bud is apt to grow. + +After the second checking most vines will shoot far enough back to +allow of the shoots being left. These grow on for the next year, +and the stopped branches hang down with their lower ends a good foot +or more from the ground, being generally from 4 to 6 feet in length, +according to the heights of the forks through which they are hung and +the positions of the new shoots, though these generally spring just +before the last bends of the checked branches, which are to be the +cropping parts. The new growths behind these are supposed to drain +them of their sap, and thus conduce to flowering. However that may be, +these checked hanging branches have certainly more tendency to flower +than other parts of the vines. Flowers take some six weeks to develop +from the moment they burst through the buds to their time of opening, +but this period varies in length with the weather, continuous dryness +retarding and moderate showers hastening their development when once +started. + +The growing branches of vines should now be checked again for the +following year’s crop. These will be less troublesome in putting +out inconvenient shoots, as the plant’s sap is more apt to go into +flowering branches, where nourishment is now more needed. Could the +whole work be performed in a few days, this change in the direction +of sap flow should be done preferably ten days or a fortnight before +flowers begin to open. In a large plantation, unless the hands are very +numerous or the shoots have been arranged beforehand so that there +is little else to do than cut their ends, it will take some weeks +to accomplish this, and therefore work must begin earlier or finish +later. If the dry spell necessary for flowering has lasted a good while +and can fairly be depended upon to continue long enough, the growing +ends may be cut earlier; but it must be borne in mind that if rain in +quantity comes too soon and, in addition to the stimulus given by it, +the branches intended for flowering have also the sap from previously +growing shoots poured into them, the chance of their cropping well will +be much diminished. Many a promise of a fine crop is ruined by too +early rain here. The country, climate, and the planters’ skill as a +weather prophet must govern this undertaking. + +An abundant supply of leaf mold should be in readiness for laying on +the roots at this season, and should be applied when flowers begin to +open, or a little before. If previous dressings have been so timed that +vines are in a somewhat starved condition when flowering is expected, +the chances of a good blossoming are increased, but this practice needs +judgment, or a poor quality of pods will be the result. + +There used to be a story current here, no doubt with some grain +of truth in it, to the effect that in a very wet season the only +vanilla planter who had any crop was one whose pigs had got adrift +in his plantation and spent the night in grubbing up vanilla roots. +This method of producing flowers is not recommended, but it is quite +possible that careful and systematic root pruning might be carried on +with advantage in wet years, if one could tell beforehand when these +were coming. + + + + +POLLINATION OF THE FLOWERS. + + +The work of flower fertilization (pollination)--for they have all to be +fertilized by hand, and that on the day they open--is mostly done by +women and children. The operation is a very simple one, and an average +negro will acquire the knack after being shown a few examples. (See +fig. 1.) + +The flower is taken in the left hand, three fingers being placed at its +back and the thumb in front, the column with organs of fertilization +on top being supported against the middle sepal behind. A bit of hard +wood, cut to the size of a toothpick and scraped smooth and flat at one +end, is the only tool required; this is held in the right hand. To get +at the organs of fertilization easily, the sack which grows from the +side of the column enveloping its front and marking the sexual organs +is pressed down by the bit of wood, or this is run through its base, +and the sack torn up, or the whole sack may be plucked off with finger +and thumb, it matters not how it is laid open, so long as this is done +quickly and without injury to any other part of the flower. The smooth +end of the fecundating instrument is then laid flat on the front of the +column just beneath the organs of fertilization, and being pushed up it +catches under the flap which keeps the pollen from coming into contact +with the stigma. The flap is raised along with the stick till it lies +flat against the upper part of the column, being held in that position +by the bit of wood. The stamen, at first raised along with the flap, +now falls down again in its original position, and the flap being out +of the way the pollen comes into contact with the stigma, and a slight +pressure of the thumb on the stamen lodges the pollen in the position +required; the bit of stick being then quickly but gently withdrawn, the +operation is complete. + +The whole affair is very much easier done than described, and with +flowers fairly numerous an ordinary hand will fecundate a hundred or so +per hour. Early morning, from 7 to 9, is the best time for fertilizing; +but the work may be started with sunrise and carried on well into the +afternoon, though about midday flowers begin to close some and the work +goes slower. Most plants in full crop produce many more flowers than it +is advisable to fertilize, for other parts of the vines, besides the +checked hanging branches, blossom in favorable seasons, and the number +of pods which a vine is able to mature properly must be estimated +from the plant’s size and condition. In the course of four or five +years, though by that time the planted cutting will be spent, if well +cared for it will have grown a large quantity of vine; and as each new +shoot, when long enough, sends down aerial roots in its own behalf, it +becomes, so to speak, an independent plant and the parent of others. +If none of the shoots from a strong growing vine have been removed the +mass of growth in time becomes enormous, and may be equal to maturing +a hundred or more good pods. When the supporting tree is stout and +furnishes forks enough to admit of the vine being spread out so as to +let plenty of air through it the vine may be allowed to accumulate to +this extent, and if it gives, say, 20 clusters, each yielding 10 or +more flowers, 5 or 6 might be fertilized on each. + +[Illustration: + +FIG. 1.--Hand pollination of the vanilla flower (after A. Delteil, +La Vanille, Paris, 1897, Pl. 2). _a_ shows the position of hands, +needle, and flower in the operation of pollination, first stage; _b_, +operation of pollination, second stage; _c_, flower with male organs +raised (pollen masses shown at 1); _d_, flower from which outer parts +have been removed, showing pollen masses at 1, stigma at 2, and the +gynostemium at 3; _e_, perfect flower; _f_, longitudinal section +through male and female organs of the flower before hand pollination, +showing pollen mass in the anther or male organ at 1; _g_, similar +section after hand pollination, showing the pollen mass applied to the +stigma at 1. ] + +But, generally speaking, about 30 pods to a vine is as many as should +be left, and he would be a lucky planter who should average that +number. In selecting flowers to fertilize those should be chosen which +spring from the lower part and from the sides of the flower stalks, +from which position they grow straighter pods than those coming out +on top. In favorable weather, i. e., moist but not heavy rain (which +latter often washes the pollen grains away before they germinate), +only a small percentage of flowers will fail of fecundation. In case +of failure, the flower drops off in three days or less, but otherwise +remains attached to its stalk and slowly withers; the _gynostemium_ +adheres to most pods till they begin to ripen; thus it is easy to see +the number successfully fecundated in each bunch, and where enough are +secured the rest can be broken off. Later it is advisable to cut clean +off with a knife the flower stalk a quarter of an inch or so beyond the +last fertilized flower. Some planters plaster a bit of sticky clay on +the cut surface to prevent it rotting back. Dry lime is perhaps better; +this may be dabbed on with a piece of cloth dipped in the powder. + +Pods grow to their full size in five or six weeks, but take some +eight months, more or less, according to the altitude at which they +are grown, or the amount of shade over them, before they ripen. The +indication of ripening is a slight yellowing of the whole pod, which +is more marked near its free end. When under too much shade the change +in color is less noticeable, and many pods grown in such places split +before they are gathered, and for that reason lose in value. To guard +against splitting, and yet gather them at perfect ripeness, they should +be gone over every other day. In removing them from the flower stalks +the pods are grasped one by one near their attached ends, very slightly +twisted, and at the same time pressed aside with the thumb. They must +be taken off quite clean. If a bit of the flower stalk comes away with +a pod, as sometimes will happen, it should be cut off smoothly. Any +break or crack in the pod itself, however, near its butt, ranks it as +an inferior quality. Buyers are very particular in this respect. After +each day’s gathering, before the pods are started on their first stage +of curing, it is well to sort them roughly into four classes: 1, long; +2, medium; 3, short; and 4, split. + + + + +CURING THE PODS FOR MARKET. + + +There are many different modes of preparing vanilla, but for brevity’s +sake one alone will be described; it is probably the simplest, and +appears to be as successful as any other. About 400 of the longest pods +are placed in a basket and plunged into hot water (190° F.) for ten +seconds; this is repeated twice, the dips being increased to twelve and +fifteen seconds respectively, with intervals of half a minute between +each two. After the third dip, when most of the water has drained off, +the pods are placed in a wooden box or barrel lined with blankets, and +closely covered up with the same material. When lot 1 is finished, lot +2 is similarly treated, and for them the water may be a few degrees +cooler, or the dipping times a trifle shortened; and so also with lot +No. 3, while No. 4 may be treated as No. 2. Perhaps it is as well to +add that 190° F. is not an absolutely essential heat, but is about as +high as it is safe to go; while even the longest pods may be adequately +treated in water at 170° F. if they are kept in it long enough. An +experienced preparer will be guided more by the appearance of the pod +after each dip than by any fixed formula. Where small quantities are +dealt with less heat is needed, and the above figures are given for +a boiler 22 inches in diameter by 12 inches deep. It is best to have +good-sized boxes or barrels to sweat the pods in, those holding 2,000 +or 3,000 each being preferable, for the more pods there are together +the better heat is retained. The lots (1, 2, 3, and 4) should be kept +apart, a fold of blanket being laid on each if all go into one box. By +the following morning they should have changed to chocolate or puce +color, and are then ready to spread on the drying shelves; but if there +is a large number together, and the heat has been well kept in, they +may be left for another twenty-four hours. + +A curing house for preparing a crop up to 2,000 pounds (dry) may have +the following dimensions and fixings: 30 feet long, 15 feet broad, 13 +feet in height of walls. It should be divided into four compartments, +two on the ground and two above, each being approximately 15 by 15 and +6¹⁄₂ feet high. One compartment on the ground floor is used as a hot +room, having a flue 2 feet wide covered with sheet iron running through +the center. If the heat is too intense from this, sand may be sprinkled +on top to reduce it. Above this flue and around two sides of the hot +chamber tiers of shelves are fixed 6 inches apart, on which the pods +are spread to dry. The shelves may be conveniently made of laths, on +top of which mats or canvas can be laid; or fine-meshed wire netting +would serve the same purpose, perhaps, better than anything else. The +entire arrangement will be more easily understood by reference to fig. +2. Compartment No. 1 is the hot room. Dotted lines in it and in Nos. 3 +and 4 indicate where shelves are fixed; D, door; W, window, etc. The +table is used for sorting green pods on, and is otherwise useful at +final measuring time and when the pods are tied into packets. No. 3 is +above No. 1, and is also a warm room, some heat from No. 1 coming up +through the floor. The clear spaces in Nos. 2 and 4 have fiber mats +spread on them when required, and on these the pods are handled and +sorted as they progress in curing. The worker, sitting on the floor, +keeps the four lots of pods--long, medium, short, and split--distinct +on the shelves. This facilitates the sorting, the short and split pods +needing to be examined sooner and oftener than the longer and sound +sorts, as they dry more rapidly. + +A good average heat for the hot chamber is 110° F. A few degrees more +or less does not matter, but pods are apt to dry too quickly if the +heat is much greater. The slower the process the more uniform and +better is the result. As they begin to turn soft and show longitudinal +wrinkles the pods are removed from room 1 to 3, and after reaching a +certain degree of flexibility they pass on to the shelves in room 4 +and there finish their curing. If kept too long in either a hot or a +warm room the thin ends of pods shrink too quickly, and this is to be +avoided. In a large crop there are always some inferior, ill-nourished +pods, in which this occurs, but the last remark will be useful to a +beginner. When fully cured the pods are much wrinkled and pliable, +bending easily around one’s finger. There is considerable difference in +the degree of dryness preferred by different curers. If the contents +move easily all along a pod, without any unevenness being noticed when +it is drawn between the finger and thumb, it is nearly dry enough; but +the right stage can only be learned by experience. + +[Illustration: FIG. 2.--Plan of curing house. (Dotted lines indicate +where drying shelves are fixed.)] + +When finished the pods are well wiped with bits of soft flannel and +then kept in boxes with close-fitting lids. It is better to sort them +roughly into lengths as each day’s lot is put away and tie up the +various sizes in bundles of about 200 each if the numbers allow of it, +for they have to be examined once or twice a week in order to remove +the molded ones, and this is much more quickly done with bundles than +when they are loose. Moreover, it makes the ultimate accurate measuring +easier. Either at this time or later the different qualities are more +exactly separated, none but faultless pods, without scar or defect in +curing, being allowed in the first quality. The rest rank as seconds, +etc. The split pods and the pods that have been cut on account of mold +are also kept distinct. It is well to keep a crop at least three or +four months before marketing. By that time nearly all shaky pods that +are liable to mold will have shown themselves. All are then measured +and tied up in neat bundles of 50 pods each of even length, the pods +varying in length not more than one-eighth of an inch. + +The general sightliness of a marketed crop has much influence on the +price it will bring, and whatever whims buyers get into their heads the +producer must conform to or suffer in pocket. Bundle tying is something +of an art, and a deft hand at it is valuable. Sixteen or thereabouts +of the shapeliest pods in each 50 are selected for the outside; the +rest are tied up as a core, being kept in position with a few turns of +the fiber tying cord, while the chosen 16 are carefully placed round +them. The bundle is tied in either three places, near each end and in +the middle, or in two places, an inch or more from the ends, according +to the length of bundle. The core-holding string is pulled out before +the final tie is fixed. Two-tie packets are boxed as they are. With +those of three ties buyers prefer that the end cords be removed before +packing, to enable them to examine the bundles inside and see if the +contents are of uniform quality. If kept tied some time before being +packed the bundles set, as it were, and retain their neat shape. The +tin boxes used here for packing vanilla in measure 12¹⁄₂ by 8¹⁄₂ inches +in width, are 4¹⁄₂ inches deep, and hold about 12 pounds. Each box has +a label pasted on it which bears the grower’s trade-mark, the length +and number of packets, their quality, and net weight, and a similar +label is put inside. As some chemical action is set up when vanilla +rests in contact with tin or iron, thin vegetable parchment paper is +placed in the boxes to keep the two apart. The lids are then sealed +close with pasted paper and the tins packed in wooden cases, 6 in each, +and thus dispatched to market. + + + + +MISCELLANEOUS INFORMATION AND NOTES. + + +A fair crop should average about 100 cured pods to the pound. + + ----------------------------------------------- + Pods per pound. + -------------+----------------+---------------- + | Fresh gathered | + | (about). | Dry (about). + -------------+----------------+---------------- + 9-inch pods | 20 | 65 + 8-inch pods | 25 | 80 + 7-inch pods | 33 | 110 + 6-inch pods | 50 | 160 + ----------------------------------------------- + +The following crops, produced on one estate during the last five years, +will serve to show how uncertain are the returns from vanilla growing +here: + + Pounds. + 1893 (long dry spell for flowering time in 1892) 1,800 + 1894 (rain came too soon and spoiled good promise) 120 + 1895 (next to no dry spell for flowering in 1894) 40 + 1896 (excellent promise mostly spoiled by too early rain) 500 + 1897 (similar to the year before) 600 + +Expenses for labor during these years would be about 7,000 rupees +(about $1,800 to $2,000). Present price of vanilla (June, 1897) in +London market averages about $6 (25s.) per pound. The currency here is +in Indian money--that is, rupees; nominal value of rupee, 1s. to 2s., +but the actual value varies with price of silver and at present ranges +between 1s. 2d. and 1s. 3d. + +The day begins at 6 a. m. and work continues until 5 p. m., or to +4 p. m. on some properties; 11 to 12 is breakfast time. Rough work +is quickest got through by giving “tasks,” when the negroes become +energetic. + +Ordinary estate laborers are paid 12 rupees ($3.40) per month; women +for crop curing, etc., are paid 9 rupees ($2.60) per month; women and +children for flower fecundating, one-fourth rupee (7 cents) per day, +the “day” being when work is over, early or late. Vanilla packet tying, +2 rupees (58 cents) per 100 bundles of 50 pods each; vanilla measuring, +2 rupees (58 cents) for same quantity (5,000 pods). + +Straight-stemmed palms, if stout, may be used for supporting the +vanilla vines. By driving hard-wood pegs into them obliquely at +suitable heights the vines can be hung about them as in tree forks. + +When long vanilla cuttings are planted near blossoming time, some of +them often give flowers soon afterwards. It is best to cut these off, +as cropping a vine when newly planted lessens the growing power, and it +may hang for many months, but in a regular plantation vines flowering +too heavily may be relieved by cutting off one or more of the flowering +branches. These may be planted for the one small crop they will give--3 +or 4, or up to 10 or 12 pods, according to length and vigor. For this +they may be planted close together on low bars and posts, and need +well-rotted manure for immediate and abundant nourishment. The best +time to plant for this is a few days before the first flowers open; if +cut earlier many of the flowers will die back. + +Cropping branches may be allowed to flower for two years if they have +not missed a season, but never more than that, as the pods they then +give are invariably very inferior; the best are on young wood a year or +so old at flowering. + +Prunings, when not too old, may be set out to rear new plants from. +When extending the plantations it is better to plant the shoots from +the prunings rather than the prunings themselves, if they are over 2 +years old. If flung into jungle, especially among rough ground, rocks, +etc., where there is shade and decayed leaves, they grow in a wonderful +way without any attention and yield the best of cuttings. When shoots +are checked for cropping branches, some of their tendrils occasionally +elongate into aerial roots, and should then be cut off, or they will +keep the branch full of sap and hinder its flowering. + +Short varieties of grass seem rather beneficial in a plantation; +cumbersome weeds should be hand pulled, never hoed. + +During early crop gathering, before ripe pods are numerous enough to +make it worth while using the hot room, they are cured under blankets +in the sun, but have to be taken in at the hottest part of the day +if sunshine is continuous. This used to be the sole method of curing +here, and when used now gives excellent results in favorable weather; +but dependence upon the sun is risky, and on the whole the process is +cumbersome and costly. Hand trays, that can be piled up on top of each +other and carried between two men, are used to spread the blankets on, +a fold being below as well as above the pods, and these are supported +on low double rails to keep them clear of the ground. In unsettled +weather showers have to be watched for, and the trays carried under +shelter till the weather again becomes fair. + +If there is a pinch for space in the curing house, pods in the hot room +may be spread two or three or more deep on the shelves and tumbled up +daily, i. e., such of them as are not taken off and re-sorted. + +In mulching vanilla roots, and especially at crop time, the plants are +much more benefited if the mulch be of two sorts, well-rotted leaf +mold being put on first for immediate action, and above it a layer of +withered fern or the like, which decays more slowly. When heavy top +dressings of quick-decaying manure, grass, etc., have rotted down, +they get beaten away by rain, the network of roots becomes exposed, +and may with advantage be lightly covered with a thin sprinkling of +good soil. Obviously it is better to apply this before the roots become +bare or visible. The vanilla roots delight in twisting among stones, +large and small, and flattening against their lower surface when not +embedded in the soil. When these are of a convenient size and handy +in a plantation, the root circuit allowed to each vine may be ringed +with them. Vanilla may be grown on trees of thick foliage if these are +of a sort that will stand being well pruned annually. Wild cinnamon, +which gives dense shade, is sometimes used for this purpose, the +branches being nearly all cut off each year about pod-ripening time, +which also lets the sun get at the vines for flowering. The contrast +between former somewhat dense shade, which has grown since last branch +trimming, and the strong light let in by the pruning seems to help +toward blossoming. + +Under large, high trees, wide apart, where to plant vines on other +small-growing wood between them would make the shade too close, vanilla +may be fixed on tripods of durable wood, the three stakes being tied +with wire crosswise, some little way from their top ends, so as to +furnish forks over which the vine creepers may climb. High up in the +hills here the plants may be grown in this way without any shade at +all, but the plan is only suitable for level grounds or moderate slopes. + + + + +SUMMARY. + + +The foregoing account of vanilla cultivation, being the outcome of +experience gained in the Seychelles alone, and there chiefly in +the hills, may need many modifications to adapt it to different +circumstances pertaining to other lands, and, indeed, possibly may be +of little use for such. For instance, in a drier climate irrigation +might be needful, and it would not be necessary with a reliable, +sufficient annual dry period to prepare vines for flowering by checking +their sap flow in certain branches, as it is in this colony. This is +not found necessary in certain districts where the rainfall is not +such as to keep plants growing continuously, for they stop growing of +themselves and come into flower without coaxing. + +Again, under less favorable growing conditions the vines would need +more nutriment and attention to stimulate growth. + +These and similar considerations which will suggest themselves to the +reader may serve to save a brief summary from appearing too dogmatic. + +The following conditions of climate, method of growing, etc., appear +to the writer to be most favorable to the successful cultivation and +handling of the vanilla crop: + +_Climate._--With shade temperature ranging about 80° F., never much +above or below it, and a humid, still atmosphere; a rainfall of 80 to +100 inches or more, evenly distributed through ten months in the year, +the remaining two months being dry, with occasional short and very +light showers--the ten wet mouths for continuous luxuriant growth, the +two dry ones to check it and bring vines into flower. + +_Soil._--A skin of rich vegetable mold resting on a porous substratum. +Failing that, with the above climate, vanilla should do well on any +soil if the roots are kept covered with decaying vegetation. + +_Situation._--Moderate slopes. + +_Shade._--Small-leafed trees to let checkered sunlight through. + +_Plants._--Cuttings 10 to 12 feet long of growing shoots, which should +not cease growing if planted after the dry season, but go straight on +and flower fully in two years. + +_Planting._--Either in line on posts and bars, or on shrubs of suitable +size and leafage, at the risk of wholesale destruction from disease; +or plants well kept apart, each on its own support, so that any vine +showing signs of sickness may be removed before infecting its neighbors. + +_Culture._--Plantations to be gone through bimonthly; shoots on the +ground looped up; climbing branches brought down; decayed leaves, +etc., laid on roots for manure when needed. Preparations for flowering +according to climate. + +_Cropping._--Flowers to be pollinated in forenoon, preferably such as +will hang clear and grow straight pods; quantity regulated according to +mass and vigor of each vine, but not such as to hinder the start of new +growth for more than two or three months. Pods should be gathered every +other day. + +_Curing._--The slower the better, beginning in a heated room at about +110° F. for some days, then in a cooler one, 90° to 100° F., finishing +at ordinary temperature; humidity of air kept down if need be by +charcoal braziers. + +_Marketing._--Qualities and lengths kept distinct, made up in packets +of 50 pods, and neatly packed in tins holding about 12 pounds each. + +_Labor._--Cheapness and intelligence are of the greatest importance +in vanilla production. The cultivator must himself have his eyes +everywhere; the best of labor known here deteriorates quickly if left +to itself. + +[Illustration] + + * * * * * + + + + +Transcriber’s note + + +Minor punctuation errors have been changed without notice. + +In this version, the illustrations are placed differently on the page +than in the original. + +Spelling was retained as in the original except for the following +changes: + + Page 6: “2. Plan of curing” “Fig. 2. Plan of curing” + Page 22: “and upon the whole” “and on the whole” + + + + +*** END OF THE PROJECT GUTENBERG EBOOK 77026 *** diff --git a/77026-h/77026-h.htm b/77026-h/77026-h.htm new file mode 100644 index 0000000..eef6407 --- /dev/null +++ b/77026-h/77026-h.htm @@ -0,0 +1,1443 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="UTF-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <title> + Vanilla culture as practiced in the Seychelles Islands | Project Gutenberg + </title> + <link rel="icon" href="images/cover.jpg" type="image/x-cover"> + <style> + +body { + margin-left: 10%; + margin-right: 10%; +} + +h1,h2,h3,h4,h5,h6 { + text-align: center; /* all headings centered */ + clear: both; +} + +p { + margin-top: .51em; + text-align: justify; + margin-bottom: .49em; +} + +hr { + width: 33%; + margin-top: 2em; + margin-bottom: 2em; + margin-left: 33.5%; + margin-right: 33.5%; + clear: both; +} + +hr.chap {width: 65%; margin-left: 17.5%; margin-right: 17.5%;} +@media print { hr.chap {display: none; 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+ border-collapse: collapse; +} + +#log caption +{ + text-align: center; + line-height: 1.4; + padding: 0.5em 0; +} + +#log td +{ + padding: 0.2em; + border-right: 1px solid black; +} + +#log th +{ + padding: 0.2em; + border-right: none; +} + +#log th +{ + text-align: center; + font-weight: normal; + font-style: italic; + border-top: 4px double black; + border-bottom: 1px solid black; + min-width: 1em; +} + +#log td.no-border-right-center +{ + text-align: center; + border-right: none; + border-left: none; +} + +#log th.no-border-right +{ + border-right: none; +} + +#log td.no-border-right +{ + text-align: right; + border-right: none; +} + +/* Illustration classes */ +.illowp100 {width: 100%;} +.illowp76 {width: 76%;} +.x-ebookmaker .illowp76 {width: 100%;} +.illowp50 {width: 50%;} +.x-ebookmaker .illowp50 {width: 100%;} +.illowp65 {width: 65%;} +.x-ebookmaker .illowp65 {width: 100%;} +.illowp75 {width: 75%;} +.x-ebookmaker .illowp75 {width: 100%;} + </style> +</head> +<body> +<div style='text-align:center'>*** START OF THE PROJECT GUTENBERG EBOOK 77026 ***</div> + +<p><span class="pagenum" id="Frontispiece"></span></p> +<div class="chapter"> +<div class="height"> +<p class="float-left"><span class="float-left">Bulletin No. 21, Division of Botany.</span> +</p> + +<p class="float-right"><span class="float-left">Plate I.</span></p> +</div> +</div> + +<figure class="figcenter illowp100" id="frontis_1" style="max-width: 50.0em;"> + <img class="w100" src="images/frontis_1.jpg" alt=""> + <figcaption> + <p><span class="smcap">Fig. 1.</span>—<span class="smcap">Vanilla in flower—some of the flowers already grown into small pods.</span></p> + </figcaption> +</figure> + +<br><br> + +<figure class="figcenter illowp100" id="frontis_2" style="max-width: 50.0em;"> + <img class="w100" src="images/frontis_2.jpg" alt=""> + <figcaption> + <p><span class="smcap">Fig. 2.</span>—<span class="smcap">Vanilla in fair crop, on bars and posts under shade.</span></p> + </figcaption> +</figure> + +<hr class="chap x-ebookmaker-drop"> + +<div class="chapter"> + +<div class="height"> +<p class="float-left"><span class="float-left"><span class="smcap">Bulletin No. 21.</span></span> +</p> + +<p class="float-right"><span class="float-left">S. P. I., No. 2.</span></p> +</div> +<p class="ph3"> + U. S. DEPARTMENT OF AGRICULTURE,</p> +<p class="ph4">DIVISION OF BOTANY.</p> +<h1>VANILLA CULTURE</h1> +<p class="ph3">AS PRACTICED IN THE SEYCHELLES ISLANDS.</p> + <br> +<p class="ph4">BY</p> +<p class="ph3">S. J. GALBRAITH.</p> + <br> + <figure class="figcenter illowp76" id="title_logo" style="width: 6.25em;"> + <img class="w100" src="images/title_logo.jpg" alt=""> +</figure> + <br> +<p class="ph3">WASHINGTON:</p> +<p class="ph4">GOVERNMENT PRINTING OFFICE.<br> + 1898. +</p> +</div> + + +<hr class="chap x-ebookmaker-drop"> +<p><span class="pagenum" id="Page_5">[Pg 5]</span></p> +<div class="chapter"> + <h2 class="nobreak" id="CONTENTS"> + CONTENTS. + </h2> +</div> + +<table class="autotable"> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdr">Page.</td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">Introduction to Mr. Galbraith’s paper, by D. G. Fairchild</td> +<td class="tdr"><a href="#Page_7">7</a></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">General conditions</td> +<td class="tdr"><a href="#Page_9">9</a></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">Starting a vanillery</td> +<td class="tdr"><a href="#Page_10">10</a></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">Preparing the vines for cropping</td> +<td class="tdr"><a href="#Page_13">13</a></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">Pollination of the flowers</td> +<td class="tdr"><a href="#Page_15">15</a></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">Curing the pods for market</td> +<td class="tdr"><a href="#Page_17">17</a></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">Miscellaneous information and notes</td> +<td class="tdr"><a href="#Page_21">21</a></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">Summary</td> +<td class="tdr"><a href="#Page_23">23</a></td> +</tr> +</table> + + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + +<p><span class="pagenum" id="Page_6">[Pg 6]</span></p> + + + <h2 class="nobreak" id="ILLUSTRATIONS"> + ILLUSTRATIONS. + </h2> +</div> + + + +<table class="autotable"> +<tr> +<td class="tdl"></td> +<td class="tdc">PLATE.</td> +<td class="tdl"></td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"><span class="smcap">Plate I.</span></td> +<td class="tdr">Page.</td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl">Fig. 1, vanilla in flower—some of the flowers already grown into small pods; fig. 2, vanilla in fair crop, on bars and posts under shade</td> +<td class="tdr"><a href="#Frontispiece">Frontispiece</a></td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdc">TEXT FIGURES.</td> +<td class="tdl"></td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"><span class="smcap">Fig. 1</span>. Hand pollination of the vanilla flower</td> +<td class="tdr"><a href="#Page_17">16</a></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +<td class="tdl"></td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdl"><span class="smcap">Fig. 2</span>. Plan of curing house</td> +<td class="tdr"><a href="#Page_20">19</a></td> + +</tr> +</table> + + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + +<p><span class="pagenum" id="Page_7">[Pg 7]</span></p> + + + <h2 class="nobreak" id="INTRODUCTION_TO_MR_GALBRAITHS_PAPER"> + INTRODUCTION TO MR. GALBRAITH’S PAPER. + <br> + By <span class="smcap">D. G. Fairchild</span>. + </h2> +</div> + + +<p>The following paper on vanilla culture has been prepared by Mr. +S. J. Galbraith, of Mahé, Seychelles Islands, who was for some time +associated with Mr. W. T. Swingle, agricultural explorer of the Section +of Seed and Plant Introduction, in the preparation of a joint +memoir on the culture and disease of vanilla in those islands.</p> + +<p>As the second part of the report, which deals with the disease, has +not been completed, it seems desirable not to delay longer the publication +of this part, relating to vanilla culture, inasmuch as it is practically +complete in itself.</p> + +<p>Although the vanilla is a plant native to America, its culture is now +carried on most extensively and successfully in Bourbon, Seychelles, +Mauritius, Madagascar, and other islands lying in the Tropics in the +Indian Ocean east of Africa, as well as in the Island of Tahiti in the +South Pacific.</p> + +<p>The vanilla industry is a very important one in the Seychelles Islands, +and Mr. Galbraith, himself for many years a successful planter, is in a +most favorable position to write on the subject of vanilla culture.</p> + +<p>The vanilla is a climbing orchid, the nearly mature pod of which is +the part known to trade and that which furnishes vanilla flavoring. +The plant grows wild only in the Tropics, and is so sensitive to cold +that its culture can be successful only in regions absolutely free from +frost.</p> + +<p>The recent annexation of the Hawaiian Islands, Puerto Rico, and other +tropical territory has added to our domain regions which there is reason +to believe will prove admirably suited to the cultivation of this plant.</p> + +<p>The competition of artificial vanilla, prepared synthetically by chemical +methods, has not proved to be of any considerable importance. +Indeed, the price of good vanilla has risen during recent years probably +because of the ravages of disease in the islands where it is principally +grown.</p> + +<p>Prospective growers will be greatly aided in finding suitable climates +and soil by Mr. Galbraith’s recommendations on these points.</p> + +<p>The disease mentioned in various places in this bulletin is the one +described in the second as yet unpublished part of the original memoir. +It is of fungous origin, of great destructiveness, and spreads during +moist hot weather very rapidly, frequently causing total destruction of +large plantations in a month. During recent years it has seriously +crippled the vanilla industry in Seychelles, Bourbon, and other islands +of the Indian Ocean. This malady spreads with extraordinary rapidity +<span class="pagenum" id="Page_8">[Pg 8]</span>where plants are crowded and allowed to intertwine, and for this reason +Mr. Galbraith advises against close planting, though in regions +free from the disease such culture might well prove more profitable +than the methods here advocated.</p> + +<p>Without going into details, it may be unhesitatingly affirmed from +the results of Mr. Galbraith’s very thorough and painstaking studies +that the malady is of such great destructiveness, spreads so rapidly, +and is so difficult to control, that it would, if ever introduced, ruin +probably forever the prospects of successful vanilla culture in our new +territories.</p> + +<p><i>It becomes, then, a matter of absolutely vital importance to keep the +disease out of Hawaii and Puerto Rico if it is ever proposed to grow +vanilla there.</i></p> + +<p>No surer method of destroying in advance the hope of establishing +this highly profitable industry could be conceived than that of carrying +out the first thought that would occur to an enterprising prospective +cultivator, viz, of sending to the islands of the Indian Ocean, +where vanilla culture is most highly developed, for a stock of plants +to use in starting a vanillery.</p> + +<p>The only possible way of safeguarding our new domains against this +disease is to prohibit absolutely the introduction of living vanilla +plants except by the Government, and then only after inspection by a +competent plant pathologist.</p> + +<p>Fortunately vanilla plants may be multiplied very rapidly if placed +under favorable conditions, and from a small stock of disease-free +plants it would soon be possible to stock all the islands.</p> + +<p>The Secretary of Agriculture proposes to secure such perfectly +healthy plants for distribution to planters wishing to experiment with +vanilla culture, and it is hoped that meanwhile, in the absence of any +definite legislation on the subject, public opinion will prevent any promiscuous +importation of vanilla cuttings.</p> + +<p>As soon as the plants begin to yield pods the services of an expert +should be secured to superintend the curing, for which specially constructed +apparatus is required, and to report on the quality of the +product.</p> + +<p>There is every prospect for the successful establishment of vanilla +culture in Hawaii and Puerto Rico, provided suitable soils and climates +be found, and provided the disease be excluded. Certainly an industry +which yielded to the small island of Tahiti in 1897 $172,295, to the +Seychelles $246,600 in 1897, and to Réunion $560,563 in 1892 is worthy +the serious attention of prospective cultivators. The desirability of +publishing a practical paper on the subject at this time is emphasized +by the conviction that both Hawaii and Puerto Rico offer suitable fields +for the introduction of this industry.</p> + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + +<p><span class="pagenum" id="Page_9">[Pg 9]</span></p> + + + <h2 class="nobreak" id="VANILLA_CULTURE_AS_PRACTICED_IN_THE_SEYCHELLES"> + VANILLA CULTURE AS PRACTICED IN THE SEYCHELLES + ISLANDS. + <br> + By <span class="smcap">S. J. Galbraith</span>. + </h2> +</div> + + +<hr class="r5"> +<div class="chapter"> + <h2 class="nobreak" id="GENERAL_CONDITIONS"> + GENERAL CONDITIONS. + </h2> +</div> + + +<p>Vanilla cuttings are said to have been first introduced into the Seychelles +Islands in 1866, probably from Bourbon (La Réunion), where the +plant was grown extensively after sugar began to fail, about 1850. +Plantations were gradually established and extended by the multiplication +of these original plants and from others subsequently imported, +and for many years now the colony’s prosperity has largely depended +on vanilla.</p> + +<p>If kept free from disease it is a plant of extraordinary vitality; and +here, where moisture and heat, its main requirements, are both ample, +the sort of soil it is grown in seems to be of no great importance, provided +that, if it be very poor, the roots are kept well supplied with +manure. It is cultivated in the Seychelles from near sea level to 1,800 +feet altitude, and does well (except for disease) at all altitudes between +these extremes.</p> + +<p>The rainfall is generally about 100 inches—that is in Port Victoria, +which lies low; in the hills the precipitation is probably from 10 to 30 per +cent greater; and in drier districts, away from high lands, where little +timber is left, it must be considerably less. The fall is fairly evenly +distributed throughout the year, but a dry spell, which is necessary to +bring vanilla into flower, is to be looked for in July, August, or September, +while the heaviest rains most frequently come in December. +Even where rain has not fallen for some time the air is very moist, and +for want of more exact information on this head it may be stated that, +generally speaking, in the hills common table salt will deliquesce in a +day or two if left uncovered. The range of shade temperature for day +and night, from sea level to 1,800 feet, may be put at 90° to 70° F. +The former is exceptional, the latter frequent, especially in early morning +when the monsoon is blowing. Occasionally 68° may be registered, +but seldom lower. Of soils, three very different sorts may be +mentioned, in all of which vanilla does well here: (1) Rich vegetable +mold, common enough in forest land as a thin surface skin, and also +occurring deeper in valley bottoms. For a quick growth this is excellent. +(2) A greasy red clay, also in fair quantity, on which vanilla +makes good growth. (3) Coarse quartz sand, or gravel, apparently +derived from disintegrated granite, not common, but met with in considerable +<span class="pagenum" id="Page_10">[Pg 10]</span>patches here and there. Though so unpromising to look at, +this is, perhaps, the best of all. It gives free drainage to the roots, and +in wet years plants fixed on it are more likely to crop than those on +closer soils, while with ample manuring they grow remarkably well.</p> + +<p>The manner of setting out plantations in the Seychelles has undergone +changes within the last twelve years. Formerly plantations were seen +with the rows of vines planted so close together as scarce to leave room +for workers to pass between them. The yield per acre under such conditions +was sometimes enormous, but when disease once started in a +vanillery thus arranged its destruction was rapid and complete, so this +system has been mostly given up. Since the loss of so many close-lined +plantations the distance between the rows has been increased. +Living wood, i. e., small trees, are used as supports for the vines, these +being festooned from fork to fork; but many planters have made use +of hard-wood posts and bars, the former being notched on top and the +latter laid in the notches, resting thus from 4 to 6 feet from the ground, +according to fancy. Over these bars the plants are hung (Pl. <a href="#Frontispiece">1</a>), being +looped up as growth is put on. Wire is sometimes also used instead of +horizontal bars. It is much cheaper, but otherwise has disadvantages, +notable among which is that it sways with wind and is liable to break +the vines, the curvature being too sharp over such a small round surface. +However, when plants thicken into a mass this last drawback +mostly disappears.</p> + +<p>A third, and, as the writer believes, much better way of growing +vanilla, is now more generally coming into practice. This is to plant +each creeper on a tree of its own, and where land is cheap it is an +advantage if these are well apart. So arranged, the general maintenance +of a vanillery is certainly more expensive, inasmuch as isolated +plants require more manure than when the same number are closely +grouped together. The work of flower pollination and crop gathering +is also more laborious. But more than a counterpoise to these disadvantages +is the increased security this method of planting gives against +wholesale destruction from disease; for when so arranged a sick plant +can be removed and destroyed with greater chance of this being done +before any of its neighbors become affected; whereas when growths of +different plants are interwoven, either in their roots or shoots, it is difficult +to know when enough has been taken up, and there is every likelihood +of the disease becoming established beyond control.</p> + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + <h2 class="nobreak" id="STARTING_A_VANILLERY"> + STARTING A VANILLERY. + </h2> +</div> + + +<p>To give some notion of how a vanilla plantation is set out and carried +on in this colony, it will be convenient to assume that the tree method +of planting is the one adopted. A great variety of trees will serve the +purpose. Here, on most properties, there is an abundance ready for +the work; but of course where this is not the case suitable trees must +first be planted. In selecting trees those should be chosen which do +<span class="pagenum" id="Page_11">[Pg 11]</span>not grow too large, but give moderate foliage (about half shade) without +ever losing all their leaves at once, and having plenty of branches +from 5 to 7 feet from the ground, affording forks enough to train the +vines through.</p> + +<p>No hard and fast rule can be laid down as to the distance trees +should be kept apart. Here formerly, as above stated, vanilla was +grown in dense masses with great success for a time. Elsewhere it +may be advantageously so grown now. However, it is safe to state that +overcrowding in any kind of planting invites disease, and the farther +plants are kept apart the more likely are they to remain healthy. A +4-foot radius would be a moderate allowance for the roots of a vigorous +vanilla plant, and if 1 foot is kept clear around the circle allowed to +each plant’s roots this would give 9 feet as the distance between the +trees. It would be difficult to insure the plants being kept distinct in +less space. Where suitable trees are already growing on the land to be +planted, these can be thinned out if too close, or they may be left in +small lots of three or four or more together, a sufficient clear space +intervening between each lot; but in that case if one vine of a group +showed disease the whole would have to be removed. Many trees stand +topping, and it is a great advantage when they do, for on being cut 7 +feet or so from the ground branches spring from near the cut part at a +convenient height, and the best situated of those can be chosen to train +the vines through, the rest that grow awkwardly being removed. About +5 feet from the base is low enough to allow any to grow.</p> + +<p>Trees being in readiness, planting may be done at any time of year +here. If during a wet spell, vanilla will sprout all the quicker; should +it be dry, the plants will delay a little, but there is no fear of their missing +if properly planted, and the one danger point to guard is where the +vine leaves the earth. This part of the vine is burnt through if not +shaded with grass or leaves. However, this also would only mean a +little delay in the start of growth; for though they take some time +longer about it, vanilla cuttings will grow well enough if merely tied +to the trees with their lower ends some inches clear of the ground. +Illustrative of the extreme vitality of plants under adverse conditions, +it may be mentioned that in neglected plantations, where the vines +have been allowed to climb well up into the branches of good-sized +trees, and then been broken in attempting to get them down, the broken +portions, sometimes partly swinging free, have remained green and +capable of growth for upwards of a year, sending down long aerial +roots 15 or 20 feet in length, and in some cases where these have +escaped injury the broken plant may reestablish connection with the +soil and start to grow again. If planted clear of the ground and +merely tied to the supporting tree, it is advisable to tie two or three +large leaves round each vine for the distance of 3 feet up; thus shaded +the aerial roots quickly burst through the stem, and, getting something +to cling to at once, soon make their way to earth without injury.</p> + +<p><span class="pagenum" id="Page_12">[Pg 12]</span></p> + +<p>In starting a new vanillery, where the estate has no plants these are +readily purchased here at small cost. From 2 to 3 rupees (55 to 90 +cents) per 100 fathoms is the usual rate for cuttings, the fathom being +what a man can span with outspread arms, a good sweep of the vine +hanging in a curve between his hands. Where choice is possible, +although oldish cuttings will grow pretty well, it is best to have the +plants of recent growth; in fact, growing shoots, cut off close to where +they spring from the parent vine, are preferable. At their point of origin +the nodes for some distance are close together, and though roots will +strike from any joints, they have a natural tendency to do so quicker +at the shoot’s base. As to the length of cuttings to plant, opinions differ; +but there can be no question that the longer cuttings produce +cropping plants sooner than the short ones. If a 2 or 3-foot branch is +planted, the shoot it gives is invariably more slender and slower of +growth than would be that from a 6-foot cutting, and up to 10 or 12 +feet every advantage lies with the longer plants, except the additional +expense.</p> + +<p>The question as to whether cuttings of that length are to be planted +whole or divided into two or three plants should be settled by their +cost. It is usual here to loosen the soil with a hoe where vanilla is to +be planted, and bury the end, laid horizontally, an inch or two in the +earth. Quite as good a way is merely to press the lower part of the +plant into the soft soil until it is flush with the surface. On sloping +land loosened soil washes away sooner with heavy rain, and in such +situations it is best to leave the ground quite undisturbed. In any +case the leaves on that part of the vine which rests in or on the ground +are cut off fairly close to the stem, and an arm full of leaves, fern, +grass, or forest sweepings laid on top to the depth of 3 or 4 inches, +for a couple of feet around the plant. Its roots will not need to be +mulched for a greater distance than that for some months to come, and +to cover a larger area would be useless. As new top dressings are +laid on, which must be done when the first supply rots down and +becomes thin, these can be gradually extended to allow of more root +spread, till the limit of 4 feet radius is reached. If well covered, the +roots do not run much; only starved vines run far with their roots, +seeking nourishment; where this is plentiful they mat in and beneath it. +Being entirely surface feeders, should any make their way beyond the +cover they can be gently lifted and tucked under the decaying leaves, +etc.; but this is a hint that the plant needs a new supply of top dressing. +The number of joints laid on or in the soil will vary with the +length of the plant, but should not be less than three for this mode of +planting, while for long cuttings six or seven joints are needed for a +quick start.</p> + +<p>If of sufficient length, the free end of the planted vine is hung through +a fork of the supporting tree, but it is also advisable to tie it in two or +three places to the tree to hinder swinging and chafing. The material +<span class="pagenum" id="Page_13">[Pg 13]</span>used for these ties here is a fiber called <i>vacoa</i>⁠<a id="FNanchor_1_1" href="#Footnote_1_1" class="fnanchor">[1]</a> + which rots in about a year, +by which time the plants should have tendril-like roots enough to steady +themselves. When once properly planted, the cuttings will need little +or no attention for some months, but when the growth becomes vigorous +the shoots must be looked after. Such of them as have grown +clear of their supports are hitched up and, if long enough, hung through +one of the forks. An occasional tie here may also be necessary, but in +general a leaf or two of the growing part can be hooked on to some +other fixed part of the vine, and in a few days, unless blown loose, the tendrils +will have fastened to the leaf, and thus support the plant. Shoots +must not be allowed to climb very high among branches of the supporting +tree, especially if there be many and close together, or there will be +breakages in getting them down. For this purpose, when they get +beyond hand reach, a forked stick 6 or 7 feet long is useful. The fork +is worked between the tree and climbing vine, and its tendrils in succession +are broken by pushing and twisting the stick when they are +within the fork. The last two or three tendrils are easily broken or +leave the tree without breaking, and care should be taken when the +vine is nearly clear to catch the stem of it high up, within the stick’s +fork; it can then be lowered gently without fear of breaking.</p> + +<p>Some judgment is necessary in selecting the fork of the tree through +which each shoot is to hang, a fork whose height fits in with a natural +bend of the vine, if it has one, being chosen; otherwise one whose +height takes the vine between joints is best, since if bent at a joint the +vine is apt to snap, especially so when in vigorous growth, being then +full of sap and brittle. In good growing weather—i. e., warm, still, +and moist—healthy, well-nourished vanilla vines grow very rapidly, an +inch per day being no uncommon rate.</p> + + +<div class="footnotes"><h3>FOOTNOTES:</h3> + +<div class="footnote"><p><a id="Footnote_1_1" href="#FNanchor_1_1" class="label">[1]</a> Obtained from a species of screw pine, <i>Pandanus utilis</i>.</p></div></div> + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + <h2 class="nobreak" id="PREPARING_THE_VINES_FOR_CROPPING"> + PREPARING THE VINES FOR CROPPING. + </h2> +</div> + + +<p>If the plants have done well they should be ready for such preparation +in about eighteen months, more or less, according to the season. +Formerly in this colony they were allowed to grow on until a spell of +dry weather set in prior to the usual blossoming time. The growing +ends were then cut off and all new shoots removed as they showed till +flowers began to come or till the season for them was past. When the +dry spell proved a long one, this seemed to answer pretty well; and, +indeed, under these circumstances flowers would come in any case, +whether growth was checked or not. But now it is more usual to stop +the growing ends some nine or ten months, in the first instance, before +flowering time. In the majority of cases the terminal bud will push, +and this new shoot should also be removed when 5 or 6 inches long—not +earlier, else the next to the last bud is apt to grow.</p> + +<p>After the second checking most vines will shoot far enough back to +<span class="pagenum" id="Page_14">[Pg 14]</span>allow of the shoots being left. These grow on for the next year, and +the stopped branches hang down with their lower ends a good foot or +more from the ground, being generally from 4 to 6 feet in length, according +to the heights of the forks through which they are hung and +the positions of the new shoots, though these generally spring just before +the last bends of the checked branches, which are to be the cropping +parts. The new growths behind these are supposed to drain them of +their sap, and thus conduce to flowering. However that may be, these +checked hanging branches have certainly more tendency to flower than +other parts of the vines. Flowers take some six weeks to develop from +the moment they burst through the buds to their time of opening, but +this period varies in length with the weather, continuous dryness +retarding and moderate showers hastening their development when +once started.</p> + +<p>The growing branches of vines should now be checked again for the +following year’s crop. These will be less troublesome in putting out +inconvenient shoots, as the plant’s sap is more apt to go into flowering +branches, where nourishment is now more needed. Could the whole +work be performed in a few days, this change in the direction of sap +flow should be done preferably ten days or a fortnight before flowers +begin to open. In a large plantation, unless the hands are very numerous +or the shoots have been arranged beforehand so that there is little +else to do than cut their ends, it will take some weeks to accomplish this, +and therefore work must begin earlier or finish later. If the dry spell +necessary for flowering has lasted a good while and can fairly be depended +upon to continue long enough, the growing ends may be cut +earlier; but it must be borne in mind that if rain in quantity comes too +soon and, in addition to the stimulus given by it, the branches intended +for flowering have also the sap from previously growing shoots poured +into them, the chance of their cropping well will be much diminished. +Many a promise of a fine crop is ruined by too early rain here. The +country, climate, and the planters’ skill as a weather prophet must govern +this undertaking.</p> + +<p>An abundant supply of leaf mold should be in readiness for laying +on the roots at this season, and should be applied when flowers begin +to open, or a little before. If previous dressings have been so timed +that vines are in a somewhat starved condition when flowering is +expected, the chances of a good blossoming are increased, but this +practice needs judgment, or a poor quality of pods will be the result.</p> + +<p>There used to be a story current here, no doubt with some grain of +truth in it, to the effect that in a very wet season the only vanilla planter +who had any crop was one whose pigs had got adrift in his plantation +and spent the night in grubbing up vanilla roots. This method of producing +flowers is not recommended, but it is quite possible that careful +and systematic root pruning might be carried on with advantage in wet +years, if one could tell beforehand when these were coming.</p> + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + +<p><span class="pagenum" id="Page_15">[Pg 15]</span></p> + + + <h2 class="nobreak" id="POLLINATION_OF_THE_FLOWERS"> + POLLINATION OF THE FLOWERS. + </h2> +</div> + + +<p>The work of flower fertilization (pollination)—for they have all to be +fertilized by hand, and that on the day they open—is mostly done by +women and children. The operation is a very simple one, and an +average negro will acquire the knack after being shown a few examples. +(See fig. <a href="#Page_17">1</a>.)</p> + +<p>The flower is taken in the left hand, three fingers being placed at its +back and the thumb in front, the column with organs of fertilization on +top being supported against the middle sepal behind. A bit of hard +wood, cut to the size of a toothpick and scraped smooth and flat at one +end, is the only tool required; this is held in the right hand. To get +at the organs of fertilization easily, the sack which grows from the side +of the column enveloping its front and marking the sexual organs is +pressed down by the bit of wood, or this is run through its base, and +the sack torn up, or the whole sack may be plucked off with finger and +thumb, it matters not how it is laid open, so long as this is done quickly +and without injury to any other part of the flower. The smooth end of +the fecundating instrument is then laid flat on the front of the column +just beneath the organs of fertilization, and being pushed up it catches +under the flap which keeps the pollen from coming into contact with +the stigma. The flap is raised along with the stick till it lies flat +against the upper part of the column, being held in that position by +the bit of wood. The stamen, at first raised along with the flap, now +falls down again in its original position, and the flap being out of the +way the pollen comes into contact with the stigma, and a slight pressure +of the thumb on the stamen lodges the pollen in the position +required; the bit of stick being then quickly but gently withdrawn, the +operation is complete.</p> + +<p>The whole affair is very much easier done than described, and with +flowers fairly numerous an ordinary hand will fecundate a hundred or +so per hour. Early morning, from 7 to 9, is the best time for fertilizing; +but the work may be started with sunrise and carried on well into the +afternoon, though about midday flowers begin to close some and the +work goes slower. Most plants in full crop produce many more flowers +than it is advisable to fertilize, for other parts of the vines, besides the +checked hanging branches, blossom in favorable seasons, and the number +of pods which a vine is able to mature properly must be estimated +from the plant’s size and condition. In the course of four or five years, +though by that time the planted cutting will be spent, if well cared for +it will have grown a large quantity of vine; and as each new shoot, +when long enough, sends down aerial roots in its own behalf, it becomes, +so to speak, an independent plant and the parent of others. If none of +the shoots from a strong growing vine have been removed the mass of +growth in time becomes enormous, and may be equal to maturing a +hundred or more good pods. When the supporting tree is stout and +furnishes forks enough to admit of the vine being spread out so as to +<span class="pagenum" id="Page_16">[Pg 16]</span>let plenty of air through it the vine may be allowed to accumulate to +this extent, and if it gives, say, 20 clusters, each yielding 10 or more +flowers, 5 or 6 might be fertilized on each.</p> + +<p><span class="pagenum" id="Page_17">[Pg 17]</span></p> + +<figure class="figcenter illowp50" id="image016" style="max-width: 50.0em;"> + <img class="w100" src="images/image016.jpg" alt=""> + <figcaption> + <p><span class="smcap">Fig. 1.</span>—Hand pollination of the vanilla flower (after A. Delteil, La Vanille, Paris, 1897, Pl. 2). + <i>a</i> shows the position of hands, needle, and flower in the operation of pollination, first stage; <i>b</i>, operation + of pollination, second stage; <i>c</i>, flower with male organs raised (pollen masses shown at 1); + <i>d</i>, flower from which outer parts have been removed, showing pollen masses at 1, stigma at 2, and + the gynostemium at 3; <i>e</i>, perfect flower; <i>f</i>, longitudinal section through male and female organs of + the flower before hand pollination, showing pollen mass in the anther or male organ at 1; <i>g</i>, similar + section after hand pollination, showing the pollen mass applied to the stigma at 1.</p> + </figcaption> +</figure> + +<p>But, generally speaking, about 30 pods to a vine is as many as should +be left, and he would be a lucky planter who should average that number. +In selecting flowers to fertilize those should be chosen which +spring from the lower part and from the sides of the flower stalks, +from which position they grow straighter pods than those coming out +on top. In favorable weather, i. e., moist but not heavy rain (which +latter often washes the pollen grains away before they germinate), +only a small percentage of flowers will fail of fecundation. In case of +failure, the flower drops off in three days or less, but otherwise remains +attached to its stalk and slowly withers; the <i>gynostemium</i> adheres to +most pods till they begin to ripen; thus it is easy to see the number +successfully fecundated in each bunch, and where enough are secured +the rest can be broken off. Later it is advisable to cut clean off with +a knife the flower stalk a quarter of an inch or so beyond the last fertilized +flower. Some planters plaster a bit of sticky clay on the cut +surface to prevent it rotting back. Dry lime is perhaps better; this +may be dabbed on with a piece of cloth dipped in the powder.</p> + +<p>Pods grow to their full size in five or six weeks, but take some eight +months, more or less, according to the altitude at which they are +grown, or the amount of shade over them, before they ripen. The +indication of ripening is a slight yellowing of the whole pod, which is +more marked near its free end. When under too much shade the +change in color is less noticeable, and many pods grown in such places +split before they are gathered, and for that reason lose in value. To +guard against splitting, and yet gather them at perfect ripeness, they +should be gone over every other day. In removing them from the +flower stalks the pods are grasped one by one near their attached ends, +very slightly twisted, and at the same time pressed aside with the +thumb. They must be taken off quite clean. If a bit of the flower +stalk comes away with a pod, as sometimes will happen, it should be +cut off smoothly. Any break or crack in the pod itself, however, near +its butt, ranks it as an inferior quality. Buyers are very particular in +this respect. After each day’s gathering, before the pods are started +on their first stage of curing, it is well to sort them roughly into four +classes: 1, long; 2, medium; 3, short; and 4, split.</p> + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + <h2 class="nobreak" id="CURING_THE_PODS_FOR_MARKET"> + CURING THE PODS FOR MARKET. + </h2> +</div> + + +<p>There are many different modes of preparing vanilla, but for brevity’s +sake one alone will be described; it is probably the simplest, and +appears to be as successful as any other. About 400 of the longest +pods are placed in a basket and plunged into hot water (190° F.) for +ten seconds; this is repeated twice, the dips being increased to twelve +and fifteen seconds respectively, with intervals of half a minute +between each two. After the third dip, when most of the water has +drained off, the pods are placed in a wooden box or barrel lined with +blankets, and closely covered up with the same material. When lot 1 +<span class="pagenum" id="Page_18">[Pg 18]</span>is finished, lot 2 is similarly treated, and for them the water may be a +few degrees cooler, or the dipping times a trifle shortened; and so also +with lot No. 3, while No. 4 may be treated as No. 2. Perhaps it is as +well to add that 190° F. is not an absolutely essential heat, but is about +as high as it is safe to go; while even the longest pods may be +adequately treated in water at 170° F. if they are kept in it long +enough. An experienced preparer will be guided more by the appearance +of the pod after each dip than by any fixed formula. Where +small quantities are dealt with less heat is needed, and the above +figures are given for a boiler 22 inches in diameter by 12 inches deep. +It is best to have good-sized boxes or barrels to sweat the pods in, +those holding 2,000 or 3,000 each being preferable, for the more pods +there are together the better heat is retained. The lots (1, 2, 3, and 4) +should be kept apart, a fold of blanket being laid on each if all go into +one box. By the following morning they should have changed to +chocolate or puce color, and are then ready to spread on the drying +shelves; but if there is a large number together, and the heat has been +well kept in, they may be left for another twenty-four hours.</p> + +<p>A curing house for preparing a crop up to 2,000 pounds (dry) may +have the following dimensions and fixings: 30 feet long, 15 feet broad, +13 feet in height of walls. It should be divided into four compartments, +two on the ground and two above, each being approximately 15 by 15 and +6¹⁄₂ feet high. One compartment on the ground floor is used as a hot +room, having a flue 2 feet wide covered with sheet iron running through +the center. If the heat is too intense from this, sand may be sprinkled +on top to reduce it. Above this flue and around two sides of the hot +chamber tiers of shelves are fixed 6 inches apart, on which the pods +are spread to dry. The shelves may be conveniently made of laths, on +top of which mats or canvas can be laid; or fine-meshed wire netting +would serve the same purpose, perhaps, better than anything else. The +entire arrangement will be more easily understood by reference to fig. 2. +Compartment No. 1 is the hot room. Dotted lines in it and in Nos. 3 +and 4 indicate where shelves are fixed; D, door; W, window, etc. The +table is used for sorting green pods on, and is otherwise useful at final +measuring time and when the pods are tied into packets. No. 3 is +above No. 1, and is also a warm room, some heat from No. 1 coming up +through the floor. The clear spaces in Nos. 2 and 4 have fiber mats +spread on them when required, and on these the pods are handled and +sorted as they progress in curing. The worker, sitting on the floor, +keeps the four lots of pods—long, medium, short, and split—distinct on +the shelves. This facilitates the sorting, the short and split pods needing +to be examined sooner and oftener than the longer and sound sorts, +as they dry more rapidly.</p> + +<p>A good average heat for the hot chamber is 110° F. A few degrees +more or less does not matter, but pods are apt to dry too quickly if the +heat is much greater. The slower the process the more uniform and +<span class="pagenum" id="Page_19">[Pg 19]</span>better is the result. As they begin to turn soft and show longitudinal +wrinkles the pods are removed from room 1 to 3, and after reaching a +certain degree of flexibility they pass on to the shelves in room 4 and +there finish their curing. If kept too long in either a hot or a warm +room the thin ends of pods shrink too quickly, and this is to be avoided. +In a large crop there are always some inferior, ill-nourished pods, in +which this occurs, but the last remark will be useful to a beginner. +When fully cured the pods are much wrinkled and pliable, bending +easily around one’s finger. There is considerable difference in the +degree of dryness preferred by different curers. If the contents move +easily all along a pod, without any unevenness being noticed when it +<span class="pagenum" id="Page_20">[Pg 20]</span>is drawn between the finger and thumb, it is nearly dry enough; but +the right stage can only be learned by experience.</p> + +<figure class="figcenter illowp65" id="image019" style="max-width: 50.0em;"> + <img class="w100" src="images/image019.jpg" alt=""> + <figcaption> + <p><span class="smcap">Fig. 2.</span>—Plan of curing house. (Dotted lines indicate where drying shelves are fixed.)</p> + </figcaption> +</figure> + +<p>When finished the pods are well wiped with bits of soft flannel and +then kept in boxes with close-fitting lids. It is better to sort them +roughly into lengths as each day’s lot is put away and tie up the +various sizes in bundles of about 200 each if the numbers allow of it, +for they have to be examined once or twice a week in order to remove +the molded ones, and this is much more quickly done with bundles than +when they are loose. Moreover, it makes the ultimate accurate measuring +easier. Either at this time or later the different qualities are +more exactly separated, none but faultless pods, without scar or defect +in curing, being allowed in the first quality. The rest rank as seconds, +etc. The split pods and the pods that have been cut on account of mold +are also kept distinct. It is well to keep a crop at least three or four +months before marketing. By that time nearly all shaky pods that are +liable to mold will have shown themselves. All are then measured +and tied up in neat bundles of 50 pods each of even length, the pods +varying in length not more than one-eighth of an inch.</p> + +<p>The general sightliness of a marketed crop has much influence on the +price it will bring, and whatever whims buyers get into their heads the +producer must conform to or suffer in pocket. Bundle tying is something +of an art, and a deft hand at it is valuable. Sixteen or thereabouts +of the shapeliest pods in each 50 are selected for the outside; +the rest are tied up as a core, being kept in position with a few turns +of the fiber tying cord, while the chosen 16 are carefully placed round +them. The bundle is tied in either three places, near each end and in +the middle, or in two places, an inch or more from the ends, according +to the length of bundle. The core-holding string is pulled out before +the final tie is fixed. Two-tie packets are boxed as they are. With +those of three ties buyers prefer that the end cords be removed before +packing, to enable them to examine the bundles inside and see if the +contents are of uniform quality. If kept tied some time before being +packed the bundles set, as it were, and retain their neat shape. The +tin boxes used here for packing vanilla in measure 12¹⁄₂ by 8¹⁄₂ inches in +width, are 4¹⁄₂ inches deep, and hold about 12 pounds. Each box has +a label pasted on it which bears the grower’s trade-mark, the length +and number of packets, their quality, and net weight, and a similar +label is put inside. As some chemical action is set up when vanilla +rests in contact with tin or iron, thin vegetable parchment paper is +placed in the boxes to keep the two apart. The lids are then sealed +close with pasted paper and the tins packed in wooden cases, 6 in each, +and thus dispatched to market.</p> + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + +<p><span class="pagenum" id="Page_21">[Pg 21]</span></p> + + + <h2 class="nobreak" id="MISCELLANEOUS_INFORMATION_AND_NOTES"> + MISCELLANEOUS INFORMATION AND NOTES. + </h2> +</div> + + +<p>A fair crop should average about 100 cured pods to the pound.</p> + + +<table id="log"> +<tr> +<td class="no-border-right" colspan="3">———————————————————————</td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="no-border-right-center" colspan="2">Pods per pound.</td> + +</tr> +<tr> +<td class="no-border-right" colspan="3">———————————————————————</td> + +</tr> +<tr> +<td class="tdl"></td> +<td class="tdr">Fresh gathered</td> +<td class="no-border-right"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdc">(about).</td> +<td class="no-border-right">Dry (about).</td> +</tr> +<tr> +<td class="no-border-right" colspan="3">———————————————————————</td> + +</tr> +<tr> +<td class="tdl">9-inch pods</td> +<td class="tdr">20</td> +<td class="no-border-right">65</td> +</tr> +<tr> +<td class="tdl">8-inch pods</td> +<td class="tdr">25</td> +<td class="no-border-right">80</td> +</tr> +<tr> +<td class="tdl">7-inch pods</td> +<td class="tdr">33</td> +<td class="no-border-right">110</td> +</tr> +<tr> +<td class="tdl">6-inch pods</td> +<td class="tdr">50</td> +<td class="no-border-right">160</td> +</tr> +<tr> +<td class="no-border-right" colspan="3">———————————————————————</td> +</tr> +</table> + + +<p>The following crops, produced on one estate during the last five years, +will serve to show how uncertain are the returns from vanilla growing +here:</p> + +<table class="autotable"> +<tr> +<td class="tdl"></td> +<td class="tdl"></td> +</tr> +<tr> +<td class="tdl"></td> +<td class="tdr">Pounds.</td> +</tr> +<tr> +<td class="tdl">1893 (long dry spell for flowering time in 1892)</td> +<td class="tdr">1,800</td> +</tr> +<tr> +<td class="tdl">1894 (rain came too soon and spoiled good promise)</td> +<td class="tdr">120</td> +</tr> +<tr> +<td class="tdl">1895 (next to no dry spell for flowering in 1894)</td> +<td class="tdr">40</td> +</tr> +<tr> +<td class="tdl">1896 (excellent promise mostly spoiled by too early rain)</td> +<td class="tdr">500</td> +</tr> +<tr> +<td class="tdl">1897 (similar to the year before)</td> +<td class="tdr">600</td> +</tr> +</table> + + +<p>Expenses for labor during these years would be about 7,000 rupees +(about $1,800 to $2,000). Present price of vanilla (June, 1897) in London +market averages about $6 (25s.) per pound. The currency here is in +Indian money—that is, rupees; nominal value of rupee, 1s. to 2s., but the +actual value varies with price of silver and at present ranges between +1s. 2d. and 1s. 3d.</p> + +<p>The day begins at 6 a. m. and work continues until 5 p. m., or to 4 p. m. +on some properties; 11 to 12 is breakfast time. Rough work is quickest +got through by giving “tasks,” when the negroes become energetic.</p> + +<p>Ordinary estate laborers are paid 12 rupees ($3.40) per month; women +for crop curing, etc., are paid 9 rupees ($2.60) per month; women and +children for flower fecundating, one-fourth rupee (7 cents) per day, the +“day” being when work is over, early or late. Vanilla packet tying, 2 +rupees (58 cents) per 100 bundles of 50 pods each; vanilla measuring, 2 +rupees (58 cents) for same quantity (5,000 pods).</p> + +<p>Straight-stemmed palms, if stout, may be used for supporting the +vanilla vines. By driving hard-wood pegs into them obliquely at suitable +heights the vines can be hung about them as in tree forks.</p> + +<p>When long vanilla cuttings are planted near blossoming time, some +of them often give flowers soon afterwards. It is best to cut these off, +as cropping a vine when newly planted lessens the growing power, and +it may hang for many months, but in a regular plantation vines flowering +too heavily may be relieved by cutting off one or more of the flowering +branches. These may be planted for the one small crop they will +give—3 or 4, or up to 10 or 12 pods, according to length and vigor. For +this they may be planted close together on low bars and posts, and +need well-rotted manure for immediate and abundant nourishment. +The best time to plant for this is a few days before the first flowers +open; if cut earlier many of the flowers will die back.</p> + +<p><span class="pagenum" id="Page_22">[Pg 22]</span></p> + +<p>Cropping branches may be allowed to flower for two years if they +have not missed a season, but never more than that, as the pods they +then give are invariably very inferior; the best are on young wood a +year or so old at flowering.</p> + +<p>Prunings, when not too old, may be set out to rear new plants from. +When extending the plantations it is better to plant the shoots from the +prunings rather than the prunings themselves, if they are over 2 years +old. If flung into jungle, especially among rough ground, rocks, etc., +where there is shade and decayed leaves, they grow in a wonderful way +without any attention and yield the best of cuttings. When shoots +are checked for cropping branches, some of their tendrils occasionally +elongate into aerial roots, and should then be cut off, or they will keep +the branch full of sap and hinder its flowering.</p> + +<p>Short varieties of grass seem rather beneficial in a plantation; cumbersome +weeds should be hand pulled, never hoed.</p> + +<p>During early crop gathering, before ripe pods are numerous enough +to make it worth while using the hot room, they are cured under blankets +in the sun, but have to be taken in at the hottest part of the day +if sunshine is continuous. This used to be the sole method of curing +here, and when used now gives excellent results in favorable +weather; but dependence upon the sun is risky, and on the whole +the process is cumbersome and costly. Hand trays, that can be piled +up on top of each other and carried between two men, are used to +spread the blankets on, a fold being below as well as above the pods, +and these are supported on low double rails to keep them clear of the +ground. In unsettled weather showers have to be watched for, and +the trays carried under shelter till the weather again becomes fair.</p> + +<p>If there is a pinch for space in the curing house, pods in the hot room +may be spread two or three or more deep on the shelves and tumbled +up daily, i. e., such of them as are not taken off and re-sorted.</p> + +<p>In mulching vanilla roots, and especially at crop time, the plants are +much more benefited if the mulch be of two sorts, well-rotted leaf mold +being put on first for immediate action, and above it a layer of withered +fern or the like, which decays more slowly. When heavy top dressings +of quick-decaying manure, grass, etc., have rotted down, they get beaten +away by rain, the network of roots becomes exposed, and may with +advantage be lightly covered with a thin sprinkling of good soil. +Obviously it is better to apply this before the roots become bare or visible. +The vanilla roots delight in twisting among stones, large and +small, and flattening against their lower surface when not embedded in +the soil. When these are of a convenient size and handy in a plantation, +the root circuit allowed to each vine may be ringed with them. +Vanilla may be grown on trees of thick foliage if these are of a sort that +will stand being well pruned annually. Wild cinnamon, which gives +dense shade, is sometimes used for this purpose, the branches being +nearly all cut off each year about pod-ripening time, which also lets the +<span class="pagenum" id="Page_23">[Pg 23]</span>sun get at the vines for flowering. The contrast between former somewhat +dense shade, which has grown since last branch trimming, and +the strong light let in by the pruning seems to help toward blossoming.</p> + +<p>Under large, high trees, wide apart, where to plant vines on other +small-growing wood between them would make the shade too close, +vanilla may be fixed on tripods of durable wood, the three stakes being +tied with wire crosswise, some little way from their top ends, so as to +furnish forks over which the vine creepers may climb. High up in the +hills here the plants may be grown in this way without any shade at +all, but the plan is only suitable for level grounds or moderate slopes.</p> + + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> + <h2 class="nobreak" id="SUMMARY"> + SUMMARY. + </h2> +</div> + + +<p>The foregoing account of vanilla cultivation, being the outcome of +experience gained in the Seychelles alone, and there chiefly in the hills, +may need many modifications to adapt it to different circumstances pertaining +to other lands, and, indeed, possibly may be of little use for such. +For instance, in a drier climate irrigation might be needful, and it would +not be necessary with a reliable, sufficient annual dry period to prepare +vines for flowering by checking their sap flow in certain branches, as it +is in this colony. This is not found necessary in certain districts where +the rainfall is not such as to keep plants growing continuously, for they +stop growing of themselves and come into flower without coaxing.</p> + +<p>Again, under less favorable growing conditions the vines would need +more nutriment and attention to stimulate growth.</p> + +<p>These and similar considerations which will suggest themselves to the +reader may serve to save a brief summary from appearing too dogmatic.</p> + +<p>The following conditions of climate, method of growing, etc., appear +to the writer to be most favorable to the successful cultivation and +handling of the vanilla crop:</p> + +<p><i>Climate.</i>—With shade temperature ranging about 80° F., never much +above or below it, and a humid, still atmosphere; a rainfall of 80 to +100 inches or more, evenly distributed through ten months in the year, +the remaining two months being dry, with occasional short and very +light showers—the ten wet mouths for continuous luxuriant growth, +the two dry ones to check it and bring vines into flower.</p> + +<p><i>Soil.</i>—A skin of rich vegetable mold resting on a porous substratum. +Failing that, with the above climate, vanilla should do well on any soil +if the roots are kept covered with decaying vegetation.</p> + +<p><i>Situation.</i>—Moderate slopes.</p> + +<p><i>Shade.</i>—Small-leafed trees to let checkered sunlight through.</p> + +<p><i>Plants.</i>—Cuttings 10 to 12 feet long of growing shoots, which should +not cease growing if planted after the dry season, but go straight on +and flower fully in two years.</p> + +<p><i>Planting.</i>—Either in line on posts and bars, or on shrubs of suitable +size and leafage, at the risk of wholesale destruction from disease; or +<span class="pagenum" id="Page_24">[Pg 24]</span>plants well kept apart, each on its own support, so that any vine showing +signs of sickness may be removed before infecting its neighbors.</p> + +<p><i>Culture.</i>—Plantations to be gone through bimonthly; shoots on the +ground looped up; climbing branches brought down; decayed leaves, +etc., laid on roots for manure when needed. Preparations for flowering +according to climate.</p> + +<p><i>Cropping.</i>—Flowers to be pollinated in forenoon, preferably such +as will hang clear and grow straight pods; quantity regulated according +to mass and vigor of each vine, but not such as to hinder the start +of new growth for more than two or three months. Pods should be +gathered every other day.</p> + +<p><i>Curing.</i>—The slower the better, beginning in a heated room at about +110° F. for some days, then in a cooler one, 90° to 100° F., finishing at +ordinary temperature; humidity of air kept down if need be by charcoal +braziers.</p> + +<p><i>Marketing.</i>—Qualities and lengths kept distinct, made up in packets +of 50 pods, and neatly packed in tins holding about 12 pounds each.</p> + +<p><i>Labor.</i>—Cheapness and intelligence are of the greatest importance +in vanilla production. The cultivator must himself have his eyes +everywhere; the best of labor known here deteriorates quickly if left +to itself.</p> + +<figure class="figcenter illowp75" id="image024" style="width: 1.5625em;"> + <img class="w100" src="images/image024.jpg" alt=""> +</figure> + +<hr class="chap x-ebookmaker-drop"> +<div class="chapter"> +<div class="tnote"> + <h2 class="nobreak" id="Transcribers_note"> + Transcriber’s note + </h2> + +<p>Minor punctuation errors have been changed without notice.</p> + +<p>In this version, the illustrations are placed differently on the page +than in the original.</p> + +<p>Spelling was retained as in the original except for the following changes:</p> + + +<table class="autotable"> +<tr> +<td class="tdl">Page <a href="#Page_6">6</a>: “2. Plan of curing”</td> +<td class="tdl">“Fig. 2. Plan of curing”</td> +</tr> +<tr> +<td class="tdl">Page <a href="#Page_22">22</a>: “and upon the whole”</td> +<td class="tdl">“and on the whole”</td> +</tr> +</table> + +</div> +</div> + +<div style='text-align:center'>*** END OF THE PROJECT GUTENBERG EBOOK 77026 ***</div> +</body> +</html> + diff --git a/77026-h/images/cover.jpg b/77026-h/images/cover.jpg Binary files differnew file mode 100644 index 0000000..d9b954d --- /dev/null +++ b/77026-h/images/cover.jpg diff --git a/77026-h/images/frontis_1.jpg b/77026-h/images/frontis_1.jpg Binary files differnew file mode 100644 index 0000000..a096f26 --- /dev/null +++ b/77026-h/images/frontis_1.jpg diff --git a/77026-h/images/frontis_2.jpg b/77026-h/images/frontis_2.jpg Binary files differnew file mode 100644 index 0000000..d812b99 --- /dev/null +++ b/77026-h/images/frontis_2.jpg diff --git a/77026-h/images/image016.jpg b/77026-h/images/image016.jpg Binary files differnew file mode 100644 index 0000000..bc4d89b --- /dev/null +++ b/77026-h/images/image016.jpg diff --git a/77026-h/images/image019.jpg b/77026-h/images/image019.jpg Binary files differnew file mode 100644 index 0000000..41670c2 --- /dev/null +++ b/77026-h/images/image019.jpg diff --git a/77026-h/images/image024.jpg b/77026-h/images/image024.jpg Binary files differnew file mode 100644 index 0000000..a1af541 --- /dev/null +++ b/77026-h/images/image024.jpg diff --git a/77026-h/images/title_logo.jpg b/77026-h/images/title_logo.jpg Binary files differnew file mode 100644 index 0000000..75f3f47 --- /dev/null +++ b/77026-h/images/title_logo.jpg diff --git a/LICENSE.txt b/LICENSE.txt new file mode 100644 index 0000000..b5dba15 --- /dev/null +++ b/LICENSE.txt @@ -0,0 +1,11 @@ +This book, including all associated images, markup, improvements, +metadata, and any other content or labor, has been confirmed to be +in the PUBLIC DOMAIN IN THE UNITED STATES. + +Procedures for determining public domain status are described in +the "Copyright How-To" at https://www.gutenberg.org. + +No investigation has been made concerning possible copyrights in +jurisdictions other than the United States. 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