花期高温胁迫下水稻种质资源的外观品质分析与评价

陈雷, 唐茂艳, 张战营, 钟晓媛, 高国庆, 张晓丽, 梁天锋, 潘英华

Analysis and Evaluation of Grain Appearance Quality Traits in Rice Germplasm Resources under Heat Stress during Flowering Stage

Chen Lei, Tang Maoyan, Zhang Zhanying, Zhong Xiaoyuan, Gao Guoqing, Zhang Xiaoli, Liang Tianfeng, Pan Yinghua

表2 稻米外观品质性状耐热系数的主成分分析

Table 2 Principal component analysis of heat resistance coefficient of rice appearance quality traits

指标Index PC1 PC2 PC3 粒长RGL 0.231 0.903 0.343 粒宽RGW -0.138 0.083 0.972 粒长宽比RGLWR 0.339 0.840 -0.405 透明度RTP 0.690 -0.166 -0.148 垩白粒率RGCR 0.844 -0.262 0.198 垩白度RCD 0.891 -0.164 0.143 特征值Eigenvalue 2.170 1.652 1.308 贡献率Contribution rate (%) 36.163 27.531 21.795 累计贡献率Cumulative contribution rate (%) 36.163 63.694 85.489