三种外源植物生长调节物质对玉米幼苗耐寒性的影响

金梓浩, 赵文清, 王芳, 王威, 彭云玲, 常芳国

Effects of Three Exogenous Plant Growth Regulators on the Cold Tolerance of Maize Seedlings

Jin Zihao, Zhao Wenqing, Wang Fang, Wang Wei, Peng Yunling, Chang Fangguo

表4 3种外源物质处理的综合指标系数[CI(x)]和得分系数[W(x)]

Table 4 Comprehensive index coefficients [CI(x)] and score coefficients [W(x)] of the treatments of three exogenous substances

外源物质Exogenous substance 主成分PCA SOD POD CAT SP Pro SS MDA REC 5-ALA CI (1) 0.914 0.888 0.869 0.827 0.427 0.511 -0.898 -0.691 CI (2) -0.103 0.180 0.110 -0.156 0.820 0.829 0.360 0.699 W (1) 0.417 0.406 0.397 0.378 0.195 0.234 -0.410 -0.316 W (2) -0.072 0.125 0.076 -0.109 0.572 0.578 0.251 0.487 MeJA CI (1) 0.912 0.923 0.937 -0.325 -0.873 -0.960 -0.659 0.434 CI (2) 0.230 0.243 -0.160 -0.846 0.218 0.092 0.727 0.456 W (1) 0.409 0.414 0.420 -0.146 -0.391 -0.431 -0.296 0.194 W (2) 0.180 0.190 -0.125 -0.659 0.170 0.071 0.567 0.356 SL CI (1) 0.876 0.828 0.932 0.639 0.538 0.571 -0.914 -0.944 CI (2) -0.332 -0.377 -0.206 0.602 0.765 0.785 0.253 0.231 W (1) 0.389 0.368 0.414 0.284 0.239 0.253 -0.406 -0.419 W (2) -0.237 -0.268 -0.147 0.429 0.544 0.558 0.180 0.164