云南省大豆品种主要性状的灰色关联度分析

Grey correlation degree analysis on main characters of soybean varieties in Yunnan province

应用灰色关联度分析方法,对云南省大豆品种主要性状对其产量的影响进行分析,结果表明:产量与主要性状的关联度大小依次为株高>单株荚数>单株产量>生育期>百粒重>分枝。与产量形成关系密切的主要性状是株高、单株产量,并明确了各性状之间的相互关系,为云南省大豆育种和栽培提供理论依据。

The paper analyzes the correlation degree between the yield of 7 soybean varieties in Yunnan province and their main characters by the method of grey correlation degree analysis. The results show the order of them; plant height>num-ber of pods per plant>yield per plant>growing period>100-seed weight>number of branches. Hence, the main characters like plant height, number of pods per plant and yield per plant, keep close relation with yield, which provide a theoretic base for soybean breeding.