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《SOYBEAN SCIENCE》 1999-03
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EFFECTS OF SE ON PEROXIDATION DAMAGE OF MEMBRANE LIPIN OF SOYBEAN INDUCED BY CONTINUOUS CROPPING

Luo Shengguo Li Yan Liu Yuanying Zhao Jiuming Jiang Bowen (Agricultural College, The Northeast Agricultural University, Harbin, 150030)  
Experiments were conducted to study the effects of Se on reducing the peroxidation damage of membrane lipin of soybean induced by continuous cropping. Results showed that Se could increase the activity of glutathione peroxidase (GSH-Px) in soybean leaves significantly in continuous cropping pot experiment and in alternate cropping plot experiment (F=13.00 * * and F=5.12 * *). Because of the increase of GSH-Px activity, the content of product of lipid peroxidation, malondialdehyde (MDA), decreased obviouly, and there was a significant negative correlation between them, The correlation coefficients were r= -0.967 * * and r=-0.691 * * respectively. In pot experiment with continuous cropped soils, Se increased the resistance of soybean to red spiders and therefore increased soybean yield by 93.2-112.7%, F=26.35 * *. In alternate cropping plot experiment, Se also increased soybean yield by 12.69-14.53%, although analysis of variance shows that this was not significant.
【Fund】: 黑龙江省自然基金
【CateGory Index】: S565.101
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