不同生育期白芥Na<sub>2</sub>SO<sub>4</sub>耐性鉴定及综合评价

不同生育期白芥Na₂SO₄耐性鉴定及综合评价

范惠玲, 赵晓江, 路妍

Identification and Comprehensive Evaluation of Salt Tolerance in Different Growth Periods under Na₂SO₄ Stress in White Mustard

Fan Huiling, Zhao Xiaojiang, Lu Yan

表4 各指标主成分分析

Table 4 Principal component analysis of traits

指标 Index	主成分Principal component
指标 Index	1	2
脯氨酸Proline	-0.979	0.043
叶绿素a Chl a	0.971	0.141
叶绿素b Chl b	0.970	-0.939
相对含水量Relative water content	0.939	0.183
株高Plant height	0.898	-0.202
MDA	0.839	-0.433
类胡萝卜素Carotenoid	0.419	0.882
特征值Eigenvalue	5.411	1.071
累计贡献率 Cumulative contribution rate (%)	77.302	92.599