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Plant Breeding
Part 1 of Paper
.... Experimenting with cereal crops, breeders
have aimed to enhance their yield of grain, the quality of their flour, and
their resistance to disease and drought. With other plants, breeders have
tried to improve the perfume and color of the flowers.
Improvement of plants, particularly food crops, is obviously imp.... Part 2 of Paper
.... often polypoid.
Polyploidy, as we know, can occur naturally in the wild. Some species of
cotton that we grow are polypodies that probably arose originally by
accidental crosses between different species of cotton.
But breeders do not have to rely on accidents. They can attempt to
produce fertile polypodies by crossbreeding between different species. One
early attempt to produce another hybrid species was made in 1927 by the
Russian geneticist G. D. Karpechenko, who crossbred two quite .... |
| Number of words: 622 - Approximate pages: 3 |
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