| 干旱胁迫对春大豆开花期根系生理特性的影响 |
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| 引用本文： | 赵坤,董守坤,刘丽君,孙聪姝,祖伟.干旱胁迫对春大豆开花期根系生理特性的影响[J].大豆科学,2010,29(3). |
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| 作者姓名： | 赵坤 董守坤 刘丽君 孙聪姝 祖伟 |
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| 作者单位： | 东北农业大学,农学院,黑龙江,哈尔滨,150030;东北农业大学,农学院,黑龙江,哈尔滨,150030;东北农业大学,农学院,黑龙江,哈尔滨,150030;东北农业大学,农学院,黑龙江,哈尔滨,150030;东北农业大学,农学院,黑龙江,哈尔滨,150030 |
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| 基金项目： | 国家"十一五"科技支撑计划资助项目，东北农业大学博士启动基金资助项目 |
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| 摘 要： | 为明确大豆根系生理特性的变化与抗旱性的关系,在盆栽条件下,以3个抗旱性不同的大豆品种为材料,测定开花期根系相对含水率、根系活力、丙二醛含量、超氧化物歧化酶和过氧化物酶活性.结果表明:大豆根系相对含水率及根系活力随干旱胁迫程度增强而降低,抗旱品种降低程度小于不抗旱品种;根系丙二醛含量随干旱程度的增加而升高,各品种间无明显差异;抗旱品种超氧化物歧化酶活性随干旱程度的增加而升高,而不抗旱品种则表现为先升高后降低趋势;过氧化物酶活性各品种间随着干旱胁迫程度的加强均呈先升高后降低趋势,抗旱品种变化更为明显.干旱胁迫下大豆通过改变根系内部的生理变化以提高其抗旱性.
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| 关 键 词： | 大豆 干旱胁迫 超氧化物歧化酶 过氧化物酶 丙二醛 |
Effects of Drought Stress on Physiological Characteristics of Root System of Spring Soybean in Flowering Period |
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| ZHAO Kun,DONG Shou-kun,LIU Li-jun,SUN Cong-shu,ZU Wei.Effects of Drought Stress on Physiological Characteristics of Root System of Spring Soybean in Flowering Period[J].Soybean Science,2010,29(3). |
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| Authors: | ZHAO Kun DONG Shou-kun LIU Li-jun SUN Cong-shu ZU Wei |
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| Institution: | ZHAO Kun,DONG Shou-kun,LIU Li-jun,SUN Cong-shu,ZU Wei(Agronomy College,Northeast Agricultural University,Harbin 150030,Heilongjiang,China) |
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| Abstract: | The paper aimed to study the relation of drought resistance and the changes of physiological characteristics of soybean root system.It chose three varieties of soybean with different drought resistance potted in pots as experimental samples.The results showed that the relative moisture content and activity of soybean root system reduced with the increasing of drought stress degree,and the reduction level of the variety of soybean with strong drought-resistance was less than the weak one.The content of Malon... |
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| Keywords: | Soybean Drought stress SOD POD MDA |
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