播期和种植密度对油菜产量和茎秆抗倒性的影响

袁圆,汪波,周广生,刘芳,黄俊生,蒯婕

Effects of Different Sowing Dates and Planting Densities on the Yield and Stem Lodging Resistance of Rapeseed

YUAN Yuan,WANG Bo,ZHOU GuangSheng,LIU Fang,HUANG JunSheng,KUAI Jie

表4 茎秆主要成分与倒伏指数和小区产量的回归系数及显著性检验

Table 4 Regression coefficients and significance tests between lodging index and yield with stem main components

播期 Sowing date 因变量 Dependent variable 自变量 Independent variable 回归系数 Regression coefficients 校准误 Calibration error 标准系数 Standard coefficient 显著性Saliency T P T1 倒伏指数 Lodging index 酸溶木质素soluble lignin 0.412 0.124 0.414 3.334 0.002 总木质素Total lignin -0.042 0.016 -0.328 -2.643 0.011 小区产量 Yield 群体可溶性糖Group soluble sugar -2.399 0.382 -0.654 -6.283 0.000 群体总木质素Group total lignin 0.670 0.085 0.821 7.889 0.000 T2 倒伏指数 Lodging index 酸溶木质素soluble lignin -0.078 0.013 -0.636 -6.226 0.000 总木质素Total lignin 0.285 0.105 0.278 2.721 0.009 小区产量 Yield 群体总木质素Group total lignin 1.144 0.071 1.001 16.074 0.000 群体可溶性糖Group soluble sugar -3.392 0.643 -0.329 -5.274 0.000