利用太谷核不育小麦进行轮回选择,不育株在群体中可以逐代接受外来花粉进行异交,能使种质广泛使用,亲本同时输入群体发生充分的基因重组,有利于连锁区段的破除,遗传变异的释放,持久基因库的创造。并能在人工选择作用下,使优良基因的频率不断提高,进而选出高水平的品种和复合种。 The selection of Taigu nuclear sterile wheat for cycle selection, sterile plants in the group can accept foreign pollen generations to heterosexuality, germplasm can be widely used, the parent at the same time enter the genome full gene recombination, is conducive to the linkage of the segment Breaking, the release of genetic variation, the creation of a durable gene pool. And in the role of artificial selection, so that the frequency of good genes continue to increase, and then select the high-level varieties and composite species.