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Titlebook: Breeding Field Crops; John Milton Poehlman Book 1987 Springer Science+Business Media New York 1987 Heterosis.Mutation.Triticale.agricultur

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31#
發(fā)表于 2025-3-27 00:57:25 | 只看該作者
32#
發(fā)表于 2025-3-27 03:43:30 | 只看該作者
Breeding Cross-Pollinated and Clonally Propagated Crops,with cross-pollinated species will differ from those used in self-pollinated crops. Also, the reproductive genetic structure in the major cross-pollinated crops will differ in detail from each other. This necessitates modifications in the procedure to fit the particular crop species, although the pr
33#
發(fā)表于 2025-3-27 06:11:41 | 只看該作者
34#
發(fā)表于 2025-3-27 11:08:32 | 只看該作者
Techniques in Breeding Field Crops,e plant breeder is no exception. In the practice of plant breeding, the breeder searches out or creates genetically mixed populations of plants, selects strains with desirable characteristics from the mixed populations, and tests the selected strains in pure lines or in combinations to determine if
35#
發(fā)表于 2025-3-27 13:52:13 | 只看該作者
36#
發(fā)表于 2025-3-27 17:52:54 | 只看該作者
Breeding Rice,at is a cool season crop, with production centered in the temperate and subtropical climates, rice is a warm season crop and is grown most extensively in the humid tropical and subtropical regions of the world, although production extends into the temperate climates. In the tropical and subtropical
37#
發(fā)表于 2025-3-28 00:24:49 | 只看該作者
Breeding Barley and Oats,worldwide in the production of grain, after wheat, corn, and rice. The major production areas are northern and western Europe and the USSR, where seasons are too short or too dry to grow feed grains such as corn or sorghum. In the United States and Canada, barley production is concentrated in the No
38#
發(fā)表于 2025-3-28 02:35:36 | 只看該作者
Breeding Soybeans,t half-century, it has become a major grain crop in the United States (Fig. 17.1) being third in production after corn and wheat, and second in value after corn. The rapid growth in production and importance of soybeans as a crop is unequalled in U.S. agriculture. Production of soybeans is centered
39#
發(fā)表于 2025-3-28 07:06:19 | 只看該作者
40#
發(fā)表于 2025-3-28 10:38:57 | 只看該作者
Breeding Sorghum and Millet, the semiarid tropics and subtropics. Sorghum is a major crop in Africa, India, portions of China, the southern and central Great Plains of the United States, Australia, Argentina, and areas of Mexico and Central and South America. Sorghum is a crop with extreme genetic diversity, but an overriding
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