基于主成分-聚类分析的不同水分冬小麦晚霜冻害评价

王洋洋, 贺利, 任德超, 段剑钊, 胡新, 刘万代, 郭天财, 王永华, 冯伟

Evaluations of winter wheat late frost damage under different water based on principal component-cluster analysis

WANG Yang-Yang, HE Li, REN De-Chao, DUAN Jian-Zhao, HU Xin, LIU Wan-Dai, GU Tian-Cai, WANG Yong-Hua, FENG Wei

表2 冬小麦生理指标及荧光参数间相关系数

Table 2 Correlation coefficients between the physiological and biochemical indexes and chlorophyll fluorescence parameters of winter wheat

X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X1 1 X2 0.762** 1 X3 0.115 0.153* 1 X4 0.687** 0.707** 0.395** 1 X5 0.761** 0.787** 0.201* 0.753** 1 X6 0.771** 0.839** 0.194* 0.736** 0.921** 1 X7 0.785** 0.780** 0.122 0.687** 0.914** 0.896** 1 X8 -0.782** -0.792** -0.259** -0.730** -0.798** -0.801** -0.808** 1 X9 0.271** 0.223** 0.402** 0.486** 0.373** 0.344** 0.332** -0.367** 1 X10 0.464** 0.462** 0.358** 0.584** 0.507** 0.565** 0.519** -0.583** 0.399** 1