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5 各主成分参数变量的权重、综合公式Y权重、FIPCI权重

Table 5 Weight of each principal component parameter variable, comprehensive formula Y weight and FIPCI weight

指标 Index CI1 CI2 CI3 CI4 Y权重 Y weight FIPCI权重FIPCI weight 叶绿素a Chlorophyll a 0.337681 -0.198300 -0.005150 0.071495 0.216279 0.118316 叶片含水量Leaf water content 0.344022 -0.205170 -0.158400 0.148490 0.213953 0.117044 可溶性糖Soluble sugar 0.126432 0.674734 -0.533140 0.406971 0.182342 0.099751 脯氨酸Proline 0.340455 0.160528 -0.037350 0.104493 0.273059 0.149378 光化学淬灭系数qp 0.367010 -0.121040 0.087569 0.137490 0.259461 0.141939 PS II最大光学效率Fv/Fm 0.369784 -0.133920 0.007727 0.027498 0.247476 0.135383 PS II潜在活性Fv/Fo 0.361065 -0.185420 0.105598 0.019249 0.239482 0.131009 丙二醛MDA -0.357890 0.048073 0.073403 0.013749 -0.244100 -0.133540 超氧化物歧化酶SOD 0.187072 0.536525 0.785545 0.048122 0.273080 0.149390 可溶性蛋白Soluble protein 0.265547 0.283285 -0.217630 -0.879940 0.166942 0.091326