北方粳稻萌发期耐冷性鉴定评价与筛选

蒋昆炜, 孙国才, 王健, 王桂艳, 崔月峰

Identification, Evaluation and Screening of Cold Tolerance in Japonica Rice at Germination Stage in Northern China

Jiang Kunwei, Sun Guocai, Wang Jian, Wang Guiyan, Cui Yuefeng

表4 45份水稻材料的耐冷系数主成分分析

Table 4 Principal component analysis of cold tolerance coefficients of 45 rice materials

项目Item CI1 CI2 CRC1 0.174 0.061 CRC2 0.135 0.605 CRC3 0.182 ?0.063 CRC4 0.179 0.099 CRC5 0.173 0.108 CRC6 ?0.119 0.744 CRC7 0.179 ?0.162 特征值Eigenvalue 5.266 1.024 贡献率Contribution rate (%) 75.233 14.633 累计贡献率Cumulative contribution rate (%) 75.233 89.866