聚糠萘合剂对东北地区高粱不同密度群体叶片衰老及产量的影响

张薇, 王琦, 闫鹏, 许艳丽, 严洪冬, 李桂英, 陈迪苏, 焦晓燕, 卢霖, 董志强

Effects of PASP-KT-NAA on Leaf Senescence and Yield of Sorghum Populations with Different Densities in Northeast China

Zhang Wei, Wang Qi, Yan Peng, Xu Yanli, Yan Hongdong, Li Guiying, Chen Disu, Jiao Xiaoyan, Lu Lin, Dong Zhiqiang

表1 高粱不同密度叶片衰老与抗氧化酶（SOD、POD、CAT）活性、MDA含量及SPAD值的相关性

Table 1 Correlation coefficients of leaves senescence with antioxidant enzyme (SOD, POD,CAT) activities, MDA content and SPAD value in sorghum under different densities

处理 Treatment 指标 Index SOD x1 POD x2 CAT x3 MDA x4 SPAD x5 单株绿叶降幅Leaf area reduction per plant y LZ-CK x1 1.000 x2 0.992** 1.000 x3 0.980** 0.947* 1.000 x4 -0.963** -0.985** -0.897* 1.000 x5 0.945* 0.931* 0.937* -0.857 1.000 y -0.755 -0.755 -0.762 0.723 -0.729 1.000 LZ-TR x1 1.000 x2 0.981** 1.000 x3 0.968** 0.947* 1.000 x4 -0.973** -0.993** -0.916* 1.000 x5 0.919* 0.870 0.957* -0.854 1.000 y -0.608 -0.543 -0.720 0.525 -0.870 1.000 JZ-CK x1 1.000 x2 0.959** 1.000 x3 0.939* 0.940* 1.000 x4 -0.976** -0.946* -0.985** 1.000 x5 0.991** 0.987** 0.953* -0.976** 1.000 y -0.927* -0.993** -0.936* 0.922* -0.966** 1.000 JZ-TR x1 1.000 x2 0.347 1.000 x3 0.996** 0.369 1.000 x4 -0.975** -0.511 -0.968** 1.000 x5 0.884* -0.115 0.862 -0.795 1.000 y -0.966** -0.323 -0.959** 0.919* -0.838 1.000