水分胁迫对干旱半干旱区玉米关键生育期生长发育及产量的影响及评价

杨阳, 齐月, 赵鸿, 马绎皓, 朱丹

Effects and evaluations of water stress on growth development and yield of maize during critical growth periods in arid and semi-arid regions

YANG Yang, QI Yue, ZHAO Hong, MA Yihao, ZHU Dan

表2 半干旱区定西12个玉米叶片光合参数的主成分载荷矩阵

Tab.2 Principal component loading matrix of 12 maize leaf photosynthetic parameters in semi-arid area Dingxi

光和参数 第一主成分 第二主成分 第三主成分 X1 0.0868 0.4140 -0.4113 X2 0.2219 -0.2588 0.4875 X3 0.3103 0.2900 0.2058 X4 0.3496 -0.1343 0.1360 X5 -0.3666 -0.1447 0.0755 X6 -0.3105 -0.2899 -0.2055 X7 -0.2375 0.3921 0.3045 X8 0.3326 0.2951 -0.0938 X9 0.3017 -0.2647 0.3322 X10 -0.1560 0.3649 0.3630 X11 0.3635 0.1424 -0.1897 X12 -0.2819 0.3002 0.3236