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Effect of Potassium on Soybean Leaf Protective Enzymes and Yield under Drought Stress(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2011年02期
Page:
341-343,346
Research Field:
Publishing date:

Info

Title:
Effect of Potassium on Soybean Leaf Protective Enzymes and Yield under Drought Stress
Author(s):
LIU Ying; ZHANG Ming-yi; HAN Guang; WANG Wei; LI Yu-ying; LIU Shuang-quan; JI Jing-hong; TONG Yu-xin
Soil Environment and Plant Nutrition Key Lab of Heilongjiang Province, Soil and Fertilizer and Environment Resources Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, Heilongjiang, China
Keywords:
Soybean;  Drought;  SOD;  CAT;  POD
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2011.02.0341
Abstract:
In order to elucidate the alleviate effect of potassium on drought stress of soybean, pot experiment simulated drought environment were set and the activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) in different potassium treatments on soybean cultivar Heinong 44 were determined. The results showed that potassium enhanced the activities of the enzymes and 0.42 g K2O· kg-1soil treatment was the best one. The response of SOD and CAT were important under slight stress and POD was more significant under severe stress. The yield increased by 3.8 to 18.6 percent with the increase of potassium under slight and moderate drought stress, while had no yield increasing effect under severe drought stress.

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Last Update: 2014-09-11