寒地粳稻品种芽期耐碱性研究

于涵, 胡博, 曹正男, 赵振东, 赵泽强, 宁晓海, 陈德权, 郭玉柱, 曹立勇

Alkali Tolerance of Cold-Region Japonica Rice at the Bud Stage

Yu Han, Hu Bo, Cao Zhengnan, Zhao Zhendong, Zhao Zeqiang, Ning Xiaohai, Chen Dequan, Guo Yuzhu, Cao Liyong

表4 主成分在各性状上的特征向量、因子载荷和累计贡献率

Table 4 Eigenvector, factor loading and cumulative contribution rate of principal components in each trait

耐碱指标 Alkali resistance index PC1 PC2 PC3 PC4 特征向量 Eigenvector 载荷 Loading 特征向量 Eigenvector 载荷 Loading 特征向量 Eigenvector 载荷 Loading 特征向量 Eigenvector 载荷 Loading 相对发芽势Relative germination vigor 0.768 0.564 0.269 0.210 0.355 0.361 -0.045 -0.053 相对发芽率Relative germination rate 0.798 0.586 0.069 0.054 0.389 0.396 -0.107 -0.126 相对芽长Relative bud length -0.437 -0.321 0.697 0.545 0.361 0.367 0.035 0.041 相对芽鲜重Relative bud fresh weight 0.290 0.213 0.617 0.482 -0.318 -0.323 0.333 0.391 相对组织总含水量Relative total tissue water content 0.439 0.322 0.371 0.290 -0.670 -0.681 -0.423 -0.497 根长抑制率Root length inhibition rate 0.400 0.294 -0.746 -0.583 -0.096 -0.098 0.648 0.761 特征值Eigenvalue 1.874 1.632 0.960 0.692 贡献率Contribution rate (%) 31.237 27.197 16.002 11.537 累计贡献率Cumulative contribution rate (%) 31.237 58.434 74.436 85.973