Genetics And Breeding in the Improvement of the Soybean
Genetics And Breeding in the Improvement of the Soybean
C M Clyde Melvin Woodworth
The book Genetics And Breeding in the Improvement of the Soybean was written by author C M Clyde Melvin Woodworth Here you can read free online of Genetics And Breeding in the Improvement of the Soybean book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Genetics And Breeding in the Improvement of the Soybean a good or bad book?
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For exa/nple, seed from 42 supposedly healthy plants was saved, and of these, 3 showed mosaic when tested. Probably such variable results were due to the difficulty of choosing plants absolutely free from the disease. Also single plants of the same variety seemed to vary con- siderably in the amount of mosaic in the progeny. For example, in the progenies of six single plant selections from the Midwest variety the amount of mosaic varied from to 33 percent. This would seem to indicate that the v...ariety is a mixture of types with respect to relative 1932} SOYBEAN BREEDING 377 susceptibility, and that selection may be effective in isolating types from the same variety differing in resistance and susceptibility or in ability to transmit the disease. Thus there is considerable evidence that varieties of soybeans differ greatly in relative resistance and susceptibility to certain diseases. Also sufficient information is available to show that selection of the variety or of the plants within the variety is an important factor in disease control.
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