灰色关联分析在春大豆育种中的应用

Studies on the Application of Grey Relation Analysis in the Breeding of Spring Sowing Soybean

以12个春大豆品种为材料,应用灰色关联度分析方法,对春大豆的主要性状进行了分析。结果表明:对春大豆产量影响最大的性状是单株粒重,其后依次是单株粒数、单株荚数、百粒重、主茎节数、株高、底荚高度、有效分枝。对产量影响最大的性状单株粒重与主茎节数、株高、单株粒数和单株荚数关系最为密切;对产量影响较大的单株粒数与主茎节数、株高、单株荚数关系密切。因此,对春大豆的高产育种而言,应在保证适当株高的前提下,要重视选育单株粒重高、单株粒数多、主茎节数多、单株荚数多和百粒重高的品种,同时不要忽略对品种底荚高度和有效分枝的选择。

By 12 spring sowing soybean varieties and grey relation degree analysis, the main characters affecting the yields of soybean were analyzed . The results showed that the effects of different characters on the yields in turn were seed weight per plant,grains per plant,pods per plant, 100-grain weight and nods on main steam , plant height, bottom pods height and effective branches. Weight per plant was influenced mainly by nods on main steam, plant height, grains per plant, pods per plant, and grains per plant was influenced mainly by nods on main steam, plant height, pods per plant. It indicated that in the course of the high yield breeding of spring sowing soybean, the selection of soybean with weight per plant , grains per plant, nods on main steam, pods per plant and 100-grain weight were paid attention, meanwhile, the selection of bottom pods height and effective branches could not be ingored.