[1]刘颖,张明怡,韩光,等.干旱胁迫下钾对大豆叶片保护酶活性及产量的影响[J].大豆科学,2011,30(02):341-343,346.[doi:10.11861/j.issn.1000-9841.2011.02.0341]
　LIU Ying,ZHANG Ming-yi,HAN Guang,et al.Effect of Potassium on Soybean Leaf Protective Enzymes and Yield under Drought Stress[J].Soybean Science,2011,30(02):341-343,346.[doi:10.11861/j.issn.1000-9841.2011.02.0341]
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干旱胁迫下钾对大豆叶片保护酶活性及产量的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第30卷 期数: 2011年02期 页码: 341-343,346 栏目: 出版日期: 2011-04-25
Title:
Effect of Potassium on Soybean Leaf Protective Enzymes and Yield under Drought Stress
文章编号:
1000-9841（2011）02-0341-03
作者:
刘颖;  张明怡; 韩光; 王伟; 李玉影; 刘双全; 姬景红; 佟玉欣
黑龙江省农业科学院 土壤肥料与环境资源研究所，黑龙江省土壤环境与植物营养重点实验室，黑龙江 哈尔滨 150086
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
关键词:
大豆; 干旱; 超氧化物歧化酶; 过氧化物酶; 过氧化氢酶
Keywords:
Soybean;  Drought;  SOD;  CAT;  POD
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2011.02.0341
文献标志码:
A
摘要:
采用盆栽模拟干旱环境设置不同钾肥处理，于开花期测定黑农44大豆叶片保护酶（SOD, CAT, POD）活性，以明确钾对大豆抗旱生理的影响。结果表明：适量施入钾肥可以提高大豆叶片保护酶活性。其中，K3处理（K2O 0.42 g· kg-1土）的酶活性增加值最多。SOD，CAT活性在抵御轻度干旱胁迫时发挥着重要作用，而在重度胁迫时POD活性作用更大。轻度和中度干旱条件下大豆产量和产量构成因素随着施钾量的增加而增加，产量增幅为3.8%~18.6%。而在重度胁迫下施钾无增产作用。
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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备注/Memo

基金项目：黑龙江省农业科学院院级课题资助项目；黑龙江省自然科学基金资助项目（C200831）；国际植物营养研究所IPNI资助项目。

第一作者简介：刘颖（1979-），女，研究实习员，硕士，从事土壤肥料与植物营养研究工作。E-mail: ly8090@sina.com。

更新日期/Last Update: 2014-09-11