442份青稞种质资源农艺性状遗传多样性分析与优异种质筛选

周佳浩, 王燕, 杨明奇, 谢润东, 姚有华, 吴昆仑, 姚晓华

Genetic Diversity Analysis of Agronomic Traits and Screening of Elite Germplasm in 442 Highland Barley Germplasm Resources

Zhou Jiahao, Wang Yan, Yang Mingqi, Xie Rundong, Yao Youhua, Wu Kunlun, Yao Xiaohua

表5 青稞种质资源农艺性状的主成分分析

Table 5 Principal component analysis of agronomic traits in highland barley germplasm resources

性状Trait PC1 PC2 PC3 籽粒面积Grain area 0.948 0.195 -0.149 粒长Grain length 0.652 0.697 -0.199 粒宽Grain width 0.861 -0.44 -0.035 籽粒直径Grain diameter 0.951 0.186 -0.149 籽粒圆度Grain roundness 0.138 -0.944 0.145 粒厚Grain thickness 0.745 -0.475 0.176 千粒重1000-grain weight 0.855 -0.152 0.119 籽粒硬度Grain hardness 0.236 0.062 0.379 株高Plant height 0.026 0.203 0.821 穗下节间长 Internode length below ear 0.190 0.232 0.743 穗长Spike length 0.134 0.502 0.172 芒长Awn length 0.359 0.125 -0.236 特征值Eigenvalue 4.515 2.258 1.607 贡献率Contribution rate (%) 37.621 18.813 13.393 累计贡献率 Cumulative contribution rate (%) 37.621 56.434 69.827