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绝大多数育种工作者,注意到了杂种F_1代形态特征的一致性。最初,关于杂种F_1代一致性的概念,是专指自花授粉作物,后来才推演到异花授粉作物上。从这个观点出发,选种工作者,就没有分析F_1代,也没有在杂种F_1代进行选择。其实,即使由自花授粉作物杂交,F_1代也不见得是一致的。异花授粉作物杂交,杂种F_1代的非一致性就更加明显。因此,对杂种F_1代的认识应当改变,应研究F_1代淘汰的可能性。对不同组合杂种F_1代的评价,以及同一组合内个别植株的淘汰,按照我们的意见,应当首先根据基本特征——丰产性来进行,此外,还应该考虑到其它重要的性状。
The vast majority of breeding workers noted the consistency of the morphological characteristics of F1 hybrids. Initially, the concept of hybrid F1 homogeneity was used exclusively for self-pollinated crops and later deduced for cross-pollinated crops. From this point of view, the selection of workers, there is no analysis of F1 generation, nor hybrid F1 generation choice. In fact, F 1 generations are not necessarily the same even if they are crossed by self-pollinating crops. Cross-pollination cross-hybrids, non-cohort F1 progeny even more pronounced. Therefore, the understanding of F1 hybrids should be changed, and the possibility of elimination of F1 generation should be studied. The evaluation of F1 hybrids of different combinations and the elimination of individual plants in the same combination should, according to our opinion, be carried out first on the basis of the basic characteristics of high yield, in addition to other important traits.