Bulletin Volume 101-136

Bulletin Volume 101-136

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 edition. Excerpt: ...strain. This variety seems well adapted to the type of soil upon which it was grown. Conclusion. From a study of these experiments it will readily be seen that important variations exist within varieties of cabbage. The average variation in yield for the test as a whole is somewhat more than seven tons per acre. Were it possible by the use of fertilizers or improved cultural methods to secure increases in yields to this extent, the results would be considered phenomenal. To do this would entail considerable expense and, furthermore, the results would not be permanent since they would be due to changed environmental conditions. The differences shown by these experiments are not the result of environment, but are due to differences of inherent properties of the seed. The figures as given are the average of the tests-Furthermore, throughout the course of the experiment, all strains have had equal opportunities, and corrections have been made as far as possible for probable differences of soil fertility. Thus the differences noted may be attributed to heredity, a force which is more or less persistent and which acts without expense. It is needless to further emphasize the importance of giving greater attention to this factor in the production of our economic plants. An interesting as well as a significant fact shown by these experiments isthat no one seedsman's strain excelled in every particular variety. A few had some varieties, the strains of which were especially good, and other varieties the strains of which were equally inferior. Other seedsmen had varieties all of which were quite uniformly good, while the varieties of a few seedsmen were generally inferior. This irregularity of results has doubtless come about through lack of proper...show more

Product details

  • Paperback
  • 189 x 246 x 12mm | 417g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236876679
  • 9781236876676