棉粕对盐碱胁迫下棉花生理及生长补偿效应

马宏秀,王开勇,张开祥,孟春梅,安梦洁

Effect of Cottonseed Meal on Cotton Physiology and Growth Compensation Under Salinity-alkalinity Stress

Hongxiu Ma,Kaiyong Wang,Kaixiang Zhang,Chunmei Meng,Mengjie An

表4 棉花盐碱胁迫下不同处理因子载荷

Table 4 Load of different treatment factors of cotton under salinity-alkalinity stress

Index Salt treatment Alkali treatment PC1 PC2 PC1 PC2 K+ Root -0.05 0.94** -0.67 0.69 Stem 0.47 0.78* -0.68 0.70 Leaf 0.73 0.60 -0.09 0.96** Na+ Root -0.83* 0.01 0.41 -0.15 Stem -0.87* -0.36 -0.98** 0.02 Leaf -0.81* 0.23 -0.95** 0.00 K+/Na+ ratio Root 0.61 0.61 -0.67 0.59 Stem 0.69 0.66 0.72 0.58 Leaf 0.96** 0.15 0.93** 0.28 Physiology index Total chlorophyll content 0.79* -0.52 0.63 -0.55 Chlorophyll a content 0.82* -0.07 0.60 0.55 Chlorophyll b content 0.56 -0.68 0.78* -0.35 Carotenoid content 0.78* -0.29 0.83* 0.19 Pn 0.61 -0.16 0.94** 0.10 Gs 0.75* -0.61 0.98** -0.03 Ci 0.94** -0.11 0.16 0.97** E 0.74 -0.36 0.78* 0.06 Ls -0.36 -0.12 0.02 -0.27 Growth index Plant height 0.82* 0.52 0.97** 0.17 Root length 0.96** -0.10 0.97** 0.11 Fresh weight 0.97** -0.11 0.97** 0.16 Dry weight 0.96** -0.13 0.95** 0.28