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一、必须注意的六个问题 1.搞好组合布局,准确选择提纯复壮对象。要使提纯复壮产生的原种确实能在生产上发挥作用,提纯复壮的对象应为受农民欢迎并且在三四年后仍将大面积种植的杂交种和经过试验、示范成功确定推广的接班品种的亲本自交系。 2.一定要建立自交系观察圃,确定提纯复壮的具体材料,搜集一些同名异源系,进行观察记载和测交,为确定某一个提纯复壮的玉米自交系的具体材料提供依据。
First, we must pay attention to the six issues 1. Make a good combination of layout, accurate selection of rejuvenation targets. To make the original species produced by purification and rejuvenation really can play a role in production, the object of purification and rejuvenation should be welcomed by peasants and after three or four years will still be large-area hybrids and tested, demonstrating the successful promotion of the succession varieties The parents of inbred lines. 2. Must establish inbred lines observation nursery, to identify specific materials to purify and rejuvenate, collect some of the same name heterologous lines, observed and documented, and to provide a basis for the identification of a specific material to purify and rejuvenate maize inbred lines.