Field, Forest and Farm by Jean-Henri Fabre, is part of the HackerNoon Books Series. You can jump to any chapter in this book here . MAKING FRUIT TREES BEAR CHAPTER XXVI. MAKING FRUIT TREES BEAR “If one side of a tree is pruned very short and the other very long, the natural course of the sap is to some extent diverted from the first side toward the second, which is richer in buds and consequently in foliage. We have just seen how this principle is utilized to check the growth of too vigorous a part in order to stimulate that of one that is too feeble and thus redress the balance between the two. But what would be the result if the whole tree were pruned at once? “Let us first see what takes place in a single branch. Pruned long, it preserves the greater part of its buds, all of which call for nourishment from the sap flowing in that direction; pruned short, it keeps only a few buds, which having the sap of the entire branch at their disposal, will receive each a supply that is superabundant in proportion to the fewness of the buds. For example, what twelve would ordinarily have had for consumption, two or three will now have to themselves; and because of this superabundance of nourishment each bud will develop much more vigorously than it would otherwise have done. Hence if the whole tree is pruned with an unsparing hand, all the sap drawn from the [ ]soil by the roots, having no longer a tendency to go to one side rather than the other, will be distributed evenly; and the few buds left intact by the pruning-shears will show a luxuriance of growth in proportion to the supply of nourishment placed at their disposal. Thus thorough pruning applied to the whole tree has the effect of giving it new vigor, of rejuvenating it in some measure, or, in other words, of replacing its worn-out branches with vigorous ones. Accordingly when a tree has become exhausted by abundant fruit-bearing, it is pruned without stint one year in order to restore its vigor of growth. 125 “Let us now see what we should do if we had quite the opposite end in view; that is, if we wished to make a tree blossom and bear fruit. Here two principles will serve us as guides. First, in the fulness of its vigor a tree puts forth long branches and thick foliage, but does not cover itself with blossoms, bearing in fact only a few. It is not until it has become somewhat enfeebled that it begins to flower in profusion. Secondly, what would in the tree’s youthful strength have been a branch-producing bud becomes in its enfeeblement a flower-bud; so that a flower may be regarded as a branch which, instead of developing freely and covering itself with leaves, has remained stunted, thrown back upon itself, for lack of vigor, and has exchanged its leaves for floral organs,—sepals, petals, stamens, pistils. Weaken a tree and you weaken the buds; such, in a word, is the prevailing principle.[ ] 126 “To weaken the buds individually, the pruning-shears will be plied but sparingly, leaving the buds almost intact; then these, being many in number, will have so much the less for each one separately, and some of them, especially toward the lower part of the branch, will find themselves too feeble to contend with the others and therefore will take the form of flower-buds, whereas they would have produced branches and not flowers if a more thorough pruning had rid them of their rivals. “To weaken the tree as a whole, all that we have to do is to pinch off or cut off with the thumb-nail the tender tips of the young branches; then we bend these branches back so as to give them a number of crooks and turns that will impede the circulation of the sap. Finally, the woody branches of the preceding year are broken by the hand, sometimes wholly, sometimes half, so that the tip is left hanging down. If the tree is not too vigorous these three methods, pinching, bending, and breaking, are generally sufficient to make it bear. “But when we have to do with very exuberant vegetation, more energetic methods are necessary. One of these we may call arching. The branches are all bent down so that each forms an arch; that is, the tip-end of each is pulled down to the ground and fastened there in any way that may be easiest. This abnormal position of the branch, with its top downward, is contrary to the ascending movement of the sap, which consequently flows less freely to the buds. The resulting dearth is conducive to fruit-bearing, [ ]and as soon as this effect is assured the branches are allowed to return to their natural position; otherwise the tree would become exhausted. 127 “Another method is as follows. Pruning is done very late, when the young shoots are already some centimeters long. The sap used up in the growth of the shoots cut off by the pruning shears is a great loss to the tree, which, being no longer able to supply ample nourishment to the lower buds of the branches, turns them into flower-buds. “If these means do not suffice to make the tree bear fruit, there are more violent ones which are employed only in the last extremity. Toward the end of winter, before the sap has started, an incision some millimeters wide and deep enough to penetrate the outer layers of wood is made all around the base of the trunk. Sap, as we know, ascends through these exterior layers, the newest, the most permeable by liquids; so if we partially intercept its passage it will flow less abundantly to the buds and the weakened tree will soon begin to bear. “Still another expedient is to strike at the very source of the sap, the roots. The foot of the tree is laid bare in the springtime, its main roots being denuded of their covering and left thus exposed all summer to the open air and the hot sun. No longer enjoying the coolness and darkness necessary to their office, they furnish less nourishment to the tree, and this scarcity causes the formation of flower-buds. A still more drastic method, but one that would kill the tree if employed imprudently, is to [ ]strip the roots of the refractory subject without mercy, cutting and mutilating a certain number of them and then putting back the earth that has been removed. A diminution in the flow of sap must necessarily result from this surgical operation. Finally, if the tree is small enough for the purpose, it is dug up at the end of autumn, with care to preserve the roots as far as possible, and planted again somewhere else. The disturbance caused by this change of place suffices to make the tree blossom the next year.” 128 About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Jean-Henri Fabre (2022). Field, Forest and Farm. Urbana, Illinois: Project Gutenberg. Retrieved October https://www.gutenberg.org/cache/epub/67813/pg67813-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org , located at https://www.gutenberg.org/policy/license.html.

THE CRICKET: THE SONG; THE PAIRING

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