粒用高粱种质中后期抗旱性鉴定筛选与分类指标评价

王玉斌,平俊爱,牛皓,楚建强,杜志宏,吕鑫,李慧明,张福耀

Evaluation of Identification and Classification Index for Drought Resistance at Middle and Late Growth Stage in Grain Sorghum Germplasms

YuBin WANG,JunAi PING,Hao NIU,JianQiang CHU,ZhiHong DU,Xin LÜ,HuiMing LI,FuYao ZHANG

表4 各主成分的特征向量及累计贡献率

Table 4 Eigenvectors and cumulative contribution rates of each principal component

性状 Trait 因子1 Factor1 因子2 Factor2 因子3 Factor3 因子4 Factor4 因子5 Factor5 株高PH 0.622 -0.014 0.527 0.161 0.184 穗长SL 0.609 -0.032 0.103 0.015 -0.754 茎粗SD 0.521 -0.156 0.583 -0.310 0.244 叶片持绿性LSG 0.196 0.731 -0.241 -0.124 0.213 抗倒伏性AIR 0.181 0.519 0.124 0.779 0.036 千粒重TGW 0.432 0.687 -0.098 -0.365 -0.058 籽粒大小SZ 0.607 -0.578 -0.418 0.192 0.191 产量P 0.844 -0.087 -0.443 -0.027 0.092 特征根Characteristic root 2.547 1.635 1.085 0.914 0.757 贡献率Contribution rate (%) 31.841 20.441 13.557 11.428 9.461 累计贡献率Cumulative contribution rate (%) 31.841 52.282 65.839 75.067 84.529