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Excerpt from The Canadian Seed Growers' Association and Its Work: Including the Constitution, by-Laws and Regulations Since selection, be it pedigree selection or mass selection, accord ing to most modern authorities, does not produce anything new but simply separates out that which already exists, its value after a certain point has been reached would, in the case of self-fertilizing plants, appear negligible. In so far as being able to effect any accumulation of hereditary variations is concerned, this may be quite true. On the other hand, there are certain physiological factors or agencies such as soil, climate, food and moisture supply which play an exceedingly important part in the growing of crops and which merit the utmost attention. These factors cause what are known as fluctuating variations, that is variations caused by environment and which, according to most modern breeders, are not hereditary. The selection of favorable fluctuating variations may not lead therefore, to any improve ment in the race as such but there is abundant evidence to show that the superiority of the seed from such variations - from plants which have at tained the most perfect development and maturity - manifests itself in better crops for one generation at least. In other words, modifications produced by nurture may not be hereditary but may be re - impressed on each generation by providing the proper cultural conditions. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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