不同氮素形态配比对甜菜氮同化关键酶的影响

常晓, 张云龙, 徐翎清, 李佳佳, 兴旺, 刘大丽

Effects of Different Nitrogen Form Ratio on Key Enzymes of Nitrogen Assimilation in Sugar Beet

Chang Xiao, Zhang Yunlong, Xu Lingqing, Li Jiajia, Xing Wang, Liu Dali

表3 各指标的主成分分析

Table 3 Principal component analysis among indicators

指标Index PC1 PC2 PC3 PC4 叶干重Leaf dry weight 0.929 -0.128 -0.005 0.257 叶鲜重Leaf fresh weight 0.923 0.237 -0.206 0.183 叶饱和重Leaf saturation weight 0.918 0.220 -0.083 0.254 根鲜重Root fresh weight 0.883 -0.345 -0.013 -0.191 株高Plant height 0.836 0.167 0.320 0.092 叶绿素含量Chlorophyll content 0.705 0.303 -0.470 -0.056 根干重Root dry weight 0.428 -0.752 0.262 -0.299 茎粗Stem diameter 0.617 -0.678 -0.043 -0.173 根长Root length 0.374 0.524 0.516 -0.279 GDH活性GDH activity -0.035 0.515 0.348 -0.463 GS活性GS activity -0.113 0.214 -0.828 0.084 NR活性NR activity 0.271 0.334 0.518 0.384 可溶性蛋白含量Soluble protein content -0.419 -0.347 0.368 0.674 贡献率Contribution rate (%) 42.312 16.935 14.768 9.481 累计贡献率 Accumulated contribution rate (%) 42.312 59.247 74.015 83.496 因子权重Factors weight 0.423 0.169 0.148 0.095