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水稻中的光敏核不育特性,受核内少数主基因控制,利用它进行水稻的轮回选择,可以在轮回群体自身不断改良的同时,将育成新的水稻光敏核不育系和常规品种有机地结合起来。本文对利用光敏核不育性进行水稻轮回选择的可行性进行了探讨。1 材料和方法1988年夏,实验选用本课题选育的有较强分蘖力的四个粳型光敏核不育系31011S、31013S、31105S和31111S(前两者属中粳型,后两者属晚粳型)为母本,分别与相同的十二
Photosensitive nuclear sterility in rice, controlled by a few major genes in the nucleus, can be used for the reincarnation of rice. In the meantime, the reincarnated population can continuously improve its photosynthetic nuclear sterile lines and conventional varieties Combined. In this paper, the feasibility of using photoperiod insensitivity for reincarnation of rice was discussed. MATERIALS AND METHODS In the summer of 1988, four japonica photoperiod-sensitive male sterile lines, 31011S, 31013S, 31105S and 31111S, with strong tillering ability selected in this study, were selected. The former two belong to the middle japonica type and the latter two genus Late japonica) as the female parent, respectively, with the same twelve