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PRODUCTION OF ONE GENERATION HYBRID SEED, AND PRODUCTION, MAINTENANCE AND PROLIFERATION OF THE PARENT SEED LINES
PRODUCTION OF ONE GENERATION HYBRID SEED, AND PRODUCTION, MAINTENANCE AND PROLIFERATION OF THE PARENT SEED LINES
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机译:单代杂交种子的生产以及父本种子品系的生产,维护和繁殖
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摘要
PROBLEM TO BE SOLVED: To develop a variety of uniform growth and quality capable of efficiently producing an F1 hybrid seed and manifesting high productivity by treating a plant manifesting heteromorphous flower self-incompatibility under specific conditions. ;SOLUTION: Only a long-styled flower individual is selected from a plant under isolated conditions and mutually crossed by artificial pollination or natural crossing to thereby grow a line composed of only the long-styled flower individual when producing an F1 hybrid seed in a plant manifesting heteromorphous flower self-incompatibility including plural varieties of Fagopyrum esculentum Moench such as a variety of Kitawase-Soba, Kitayuki, Botan-Soba or Shinano-Natsu-Soba(varieties of buckwheat). The resultant line is then crossed in a state isolated from other lines under artificial or natural conditions to proliferate the seed and produce a long-styled flower individual line. A line B containing only a short-styled flower individual or both of the short- styled flower individual and the long-styled flower individual is cultivated near the line A composed of only the long-styled flower individual and a seed riped in the line A is collected to produce the seed of the line A fertilized with the pollens of the line B (F1 hybrid seed of the lines A with B).;COPYRIGHT: (C)2000,JPO
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