. Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada. Agriculture -- Canada; Agriculture -- United States; Farm produce -- Canada; Farm produce -- United States. SOME OF THE rRINCIPLES OF PLANT-BREEDING 69 prevented, but that the hybrids have been bred to the same type as nearly as is the case in any ordi- nary race or variety. Selection, of vegetative parts. No consideration of the methods of plant-breed- ing would be complete without a mention of the improvements which can be produced by what may be termed the selection of vegetative
. Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada. Agriculture -- Canada; Agriculture -- United States; Farm produce -- Canada; Farm produce -- United States. SOME OF THE rRINCIPLES OF PLANT-BREEDING 69 prevented, but that the hybrids have been bred to the same type as nearly as is the case in any ordi- nary race or variety. Selection, of vegetative parts. No consideration of the methods of plant-breed- ing would be complete without a mention of the improvements which can be produced by what may be termed the selection of vegetative parts. While, in general, all buds of a plant are practically the same, as is shown by the fact that buds taken from the Baldwin apple almost uniformly produce Bald- win apples, yet there is considerable variation frequently in the product from different buds, and. Fig 88 The roKueing or removing of undesirable plants Thes lie ( tf ii hekls Tlie ui i> i pi tiiu sliows men it work 1 ulliiig o>it tlio pi mts tli it in not w mti d tlie U wer .sL„\\s .. flelJ „tter r„e, g l.„s Lv.^.» v,,LtoJ. it is well known that we have a class of variations which we have come to call bud-sports or bud-vari- ations. In violets, for example, the propagation is normally by slips that are developed from different buds. These slips when grown into plants frequently show considerable difference, and Dr. B. T. Galloway and Mr. P. H. Dorsett, of the Department of Agricul- ture, have demonstrated that,by the selection of slips from plants which are very productive, the yield in the number of flowers to the plant can be increased considerably. In the case of the orange, seedling trees are almost always very thorny, yet certain branches may show a tendency to be more nearly thornless, and by the selection of buds from such branches the thorny character of almost all the standard varieties has been reduced. By the sys- tematic selection of vegetative parts, such as buds, slips, s
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