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    • 3. 发明授权
    • Route to hybrid rice production
    • 杂交水稻生产途径
    • US4764643A
    • 1988-08-16
    • US1227
    • 1987-01-06
    • Alfonso G. Calub
    • Alfonso G. Calub
    • A01G16/00A01H1/02A01H1/04A01H5/00A01H5/10A01G1/00
    • A01H5/10A01G16/00A01H1/02A01H1/04Y10S47/01
    • An improved procedure for forming F.sub.1 hybrid Oryza sativa plants (i.e., hybrid rice plants of the first filial generation) is provided which is capable of being economically implemented on a commercial scale. Plants of the seed and pollen parents each possess a combination of characteristics (as described) which readily facilitate cross-pollination in the absence of the application of a growth hormone and the use of labor intensive procedures such as the clipping of flag leaves. The seeds formed on each parent are recovered in bulk and are separated on the basis of a genetic marker. The hybrid rice plants of the F.sub.1 generation unlike those of the seed parent possess long flag leaves which extend upwardly to a greater maximum height than the tips of the panicles whereby photosynthesis can be accomplished on an efficient basis.
    • 提供了一种改进的用于形成F1杂交水稻植物(即第一代的杂交水稻植物)的方法,其能够以商业规模经济地实施。 种子和花粉亲本的植物各自具有特征(如所述)的组合,其在不施用生长激素的情况下容易促进异花授粉,并且使用劳动密集的程序,例如限制旗叶。 在每个亲本上形成的种子大量回收并且基于遗传标记分离。 与种子母本不同的F1代的杂交水稻植物具有向上延伸到比圆锥花序的顶端更大的最大高度的长旗叶,由此光合作用可以在有效的基础上完成。