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我在多年育种工作实践中认识到,要较快地选育出合乎育种目标,有推广价值的新品种,必须加强对品种主要性状遗传变异规律的研究。掌握了规律,才有预见性,减少盲目性,提高选择的效果。以下谈谈我对水稻杂种后代分离变异遗传规律性的认识。生育期的遗传变异生育期的遗传变异规律,杂交后代的生育期,既是数量遗传性状,又是质量遗传性状。同一生态型的品种杂交,F_1的生育期倾向父本,一般介于双亲之间,F_2分离规律基本上为连续变异,是数量遗传方式.
In my many years of breeding practice, I realized that to quickly bred breeds that meet the breeding goal and promote the value of new varieties, we must strengthen the study of the genetic variation of major traits. Mastered the law, only predictability, reduce blindness, improve the effect of choice. The following talk about my understanding of genetic regularity of segregation variation of rice offspring. The genetic variation at the growth stage The genetic variation at the growth stage and the reproductive stage of the hybrid offspring are both quantitative genetic traits and quality genetic traits. The same ecotypes of hybrids, F_1 tend to grow during the male parent, usually between parents, F_2 separation is basically a continuous pattern of variation, is the number of genetic means.