基于苞叶表型性状的玉米自交系遗传多样性及遗传距离分析

马红珍, 许海涛, 王月, 冯晓曦, 许波, 张军刚, 郭海斌, 王友华

Analysis of Genetic Diversity and Genetic Distance of Maize Inbred Lines Based on Phenotypic Traits of Husks

Ma Hongzhen, Xu Haitao, Wang Yue, Feng Xiaoxi, Xu Bo, Zhang Jungang, Guo Haibin, Wang Youhua

表5 玉米自交系苞叶表型性状的主成分分析

Table 5 Principal components analysis for husk phenotypic traits of maize inbred lines

性状Trait PC1 PC2 PC3 苞叶层数Husk layer -0.2828 0.4648 -0.1054 最长苞叶长Longest husk length 0.4596 0.2490 -0.3378 最长苞叶宽Longest husk width 0.4645 -0.0530 0.3222 第3片苞叶长3rd husk length 0.4590 0.2728 -0.3329 第3片苞叶宽3rd husk width 0.4540 -0.0763 0.3973 苞叶厚度Husk thickness -0.2555 0.1971 -0.0442 苞叶干重Husk dry weight 0.0446 0.7064 0.0801 苞叶松紧度Husk tightness -0.0949 0.3179 0.7028 特征值Eigenvalue 3.2729 1.5418 1.1226 贡献率Contribution rate (%) 40.91 19.27 14.03 累计贡献率 Cumulative contribution rate (%) 40.91 60.18 74.21