大麦农艺性状和子粒支链淀粉的多元分析与评价

王蕾,张想平,李润喜,牛小霞,杨世梅,严宗山,张自强

Multivariate Analysis and Evaluation on Agronomic Traits and Grain Amylopectin Content of Barley

Lei Wang,Xiangping Zhang,Runxi Li,Xiaoxia Niu,Shimei Yang,Zongshan Yan,Ziqiang Zhang

表3 大麦种质资源主要农艺性状的主成分分析

Table 3 The principal components of barley germplasms by analysis of main agronomic traits

性状Trait 主成分1 The first PC 主成分2 The second PC 主成分3 The third PC 株高Plant height 0.235 0.212 0.831 穗下节长Internode length below the spike 0.072 -0.003 0.960 单穗粒数Kernels per spike -0.174 0.965 0.075 穗长Spike length 0.593 0.251 0.133 粒长Grain length 0.799 -0.387 0.227 粒宽Grain width 0.846 0.219 0.111 单穗粒重Kernel weight per spike 0.194 0.937 0.147 千粒重1000-grain weight 0.874 -0.060 0.238 芒长Awn length 0.647 -0.244 -0.352 特征值Eigen value 3.292 2.418 1.386 贡献率Contribution rate (%) 36.576 26.865 15.403 累计贡献率Accumulative percentage (%) 36.576 63.441 78.844