藜麦对低氮胁迫的响应研究

郭红霞, 王创云, 邓妍, 赵丽, 张丽光, 郭虹霞, 秦丽霞, 高飞, 席瑞珍

Response of Quinoa to Low Nitrogen Stress

Guo Hongxia, Wang Chuangyun, Deng Yan, Zhao Li, Zhang Liguang, Guo Hongxia, Qin Lixia, Gao Fei, Xi Ruizhen

表7 各综合指标载荷系数及累计贡献率

Table 7 Load coefficient and cumulative contribution rate of each comprehensive index

指标 Index 因子1 Factor 1 因子2 Factor 2 因子3 Factor 3 因子4 Factor 4 可溶性蛋白含量 Soluble protein content 0.711 -0.288 0.243 -0.382 可溶性糖含量 Soluble sugar content -0.837 -0.133 -0.296 0.393 MDA含量MDA content -0.869 0.419 0.114 0.160 NR活性NR activity 0.930 -0.095 -0.157 -0.176 Pro含量Pro content 0.717 0.412 -0.347 0.010 POD活性POD activity 0.803 0.476 -0.325 -0.030 SOD活性SOD activity 0.403 0.826 -0.260 0.190 根系活力Root activity 0.757 -0.167 -0.548 -0.207 GS活性GS activity 0.618 0.326 0.395 -0.285 GOGTA活性GOGTA activity 0.085 -0.853 0.296 0.315 株高Plant height 0.507 -0.126 0.598 0.531 茎粗Stem diameter 0.494 0.468 0.579 0.239 SPAD 0.523 -0.076 0.748 0.188 Fo -0.839 -0.185 -0.151 -0.425 Fm 0.304 0.343 0.489 -0.698 Fv/Fm 0.815 0.406 0.362 0.029 最大根长 Maximum root length -0.850 0.079 0.021 0.359 根系平均直径 Root average diameter -0.274 -0.927 0.169 -0.073 根系表面积Root surface area 0.366 0.370 -0.425 0.567 根系体积Root volume 0.578 -0.388 -0.277 0.145 根系干重Root dry weight -0.903 0.219 -0.078 -0.253 茎叶干重Shoot dry weight 0.244 -0.196 -0.300 -0.415 根冠比Root-shoot ratio -0.856 0.289 0.111 0.042 全氮含量N content 0.886 -0.285 -0.149 0.176 氮积累量N accumulation 0.910 -0.312 -0.204 0.085 氮利用效率 N utilization efficiency -0.878 0.291 0.196 -0.188 累计贡献率 Cumulative contribute rate (%) 47.463 65.910 75.976 83.959