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在以往的甘薯育种中一般仅根据表现型来选配亲本,但这带有一定的盲目性.本文应用多元回归这一数学方法来测定与产量、品质有关的数量性状的遗传差异作为亲本选配的综合指标.通过聚类分析,将供试亲本聚为八大类,不同类群间的亲本遗传差异大,其后代变异幅度也大.因此,选配亲本进行杂交时应在不同类群间进行.经过测定,初步筛选出25个综合性状较好的亲本供选配亲本时参考.
In the past, sweet potato breeding generally only based on the phenotype to match the parents, but with a certain degree of blindness.In this paper, the use of multiple regression regression mathematical method to determine the yield and quality of quantitative traits genetic variation as a parent option The clustering analysis showed that the tested parents were clustered into eight major groups, the genetic differences among the parents of different groups were large, and the variation range of their offspring was also large, therefore, the parents should be crossed among different groups. The results showed that 25 parents with better comprehensive traits were screened out for reference.