. Elementary biology; an introduction to the science of life . Fig. 109. Pollarded trees White poplars {Populus alba) pollarded to supply building poles in Chinese Turkestan. Pollarding is the pruning or trimming of the branches of a tree so as to make more twigs develop. (From a photograph by F. N. Meyer, of the United States Bureau of Plant Industr}') It is possible by grafting buds or twigs to get several different varieties of apples, for example, to grow on the branches of one tree. As a rule, only closely related varieties of plants can be made to graft on one another in this way. A scio
. Elementary biology; an introduction to the science of life . Fig. 109. Pollarded trees White poplars {Populus alba) pollarded to supply building poles in Chinese Turkestan. Pollarding is the pruning or trimming of the branches of a tree so as to make more twigs develop. (From a photograph by F. N. Meyer, of the United States Bureau of Plant Industr}') It is possible by grafting buds or twigs to get several different varieties of apples, for example, to grow on the branches of one tree. As a rule, only closely related varieties of plants can be made to graft on one another in this way. A scion always produces leaves, flowers, and fruit of its own kind, and not of the stock to which it is attached. This would show that the character of the original protoplasm
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology
