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应用距离分析方法研究提型杂种小麦的亲本选配问题已有一些报道,但所用材料往往有限,结论也不尽一致.作者在性状选用方法不同的情况下研究了遗传距离与杂种优势的关系.本文是先前研究工作的继续,选用性状方法有所改进,并在距离分析中引入了权重值,试图研究遗传距离和加权遗传距离及其聚类结果与提型杂种小麦杂种优势的关系,为小麦杂种优势利用服务.
There are some reports on the use of distance analysis to study the parental selection of hybrid wheat, but the materials used are often limited and the conclusions are not consistent. The author studied the relationship between genetic distance and heterosis under the different selection methods of traits. This paper is the continuation of the previous work, the choice of traits improved, and introduced the weight value in the distance analysis, trying to study the relationship between genetic distance and weighted genetic distance and its clustering results and hybrid wheat heterosis, wheat Heterosis advantage of service.