【摘要】 对32份大豆种质资源的9个农艺性状及产量进行了综合分析。结果表明，参试种质资源有效分枝数变异系数最高（30.37%），生育日数最低（2.19%）；主成分分析获得了3个主成分因子，累计贡献率达到63.14%；聚类分析将32份大豆种质资源划分为4个类群，其中第IV类具有较高的增产潜力，可作为夏大豆新品种选育的重要种质资源。更多还原

【Abstract】 Using 32 soybean germplasm resources as materials,nine agronomic traits and yield were comprehensively analyzed. The results showed that the highest coefficient of variation was found in the effective branch(30.37%),and the lowest was the number of growing days(2.19%). Three principal component factors were obtained by principal component analysis,and the cumulative contribution rate reached 63.14%. The 32 soybean resources were divided into four groups by cluster analysis,among which class IV had higher yield-increasing potential and could be used as important germplasm resources for breeding new summer soybean varieties.更多还原