江苏省夏大豆农艺性状的因子分析

为明确江苏省夏大豆主要农艺性状之间的关系,使用因子分析法对66个江苏省夏大豆品种资源的7个主要农艺性状进行了分析,结果表明:7个主要农艺性状可以精简为3个主因子,分别为结荚因子、荚粒因子和株型因子,这3个主因子的累计贡献率为91.13%;其中结荚因子与株型因子、荚粒因子与株型因子可以在育种中协同改良;而结荚因子与荚粒因子是不易协同改良的。

Factors Analysis on Agronomic Characters of Summer Soybean of Jiangsu Province

To make clear relation between main agronomic characters of summer soybean of Jiangsu province,7 main agronomic characters of 66 summer soybean variety resources of Jiangsu province were analyzed with the method of factor analysis.The result indicated that 7 main agronomic characters could be simplified into 3 principal factors: setting pod factor,pod and seed factor,plant type factor.The cumulative contribution rate of 3 principal factors was 91.13%.Setting pod factor and plant type factor,pod and seed factor and plant type factor could cooperate with improvement in breeding.Setting pod factor and pod and seed factor difficult to improve with synchronization.