| 干旱胁迫对不同品种绿豆种子萌发的影响 |
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| 引用本文： | 王富刚,王延峰.干旱胁迫对不同品种绿豆种子萌发的影响[J].榆林高等专科学校学报,2014(6):1-5. |
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| 作者姓名： | 王富刚 王延峰 |
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| 作者单位： | 1. 延安大学 生命科学学院，陕西 延安 716000; 榆林学院 生命科学学院，陕西 榆林 719000
2. 延安大学 生命科学学院,陕西 延安,716000 |
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| 基金项目： | 陕西省教育厅重点实验室项目(13JS125)；陕西省教育厅专项科研项目(12JK0823)；榆林学院科研项目 |
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| 摘 要： | 以4个品种绿豆种子为材料，用不同浓度的 PEG -6000溶液模拟干旱胁迫进行处理，测定发芽势、发芽率、胚芽长、胚根长及超氧化物歧化酶（SOD）、过氧化氢酶（CAT）、过氧化物酶（POD）活性，探究干旱胁迫对绿豆种子萌发的影响。结果表明，随着 PEG 浓度的增加，4种绿豆种子的发芽势、发芽率、胚芽长、胚根长呈下降趋势。当 PEG 浓度为5-10%时，超氧化物歧化酶、过氧化氢酶、过氧化物酶活性均呈小幅上升趋势；当 PEG 浓度为15%时，各酶活性急剧上升到最高值，且各酶活力的升高幅度有所不同；当 PEG 浓度为20%时，各酶活性急剧下降。
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| 关 键 词： | 干旱胁迫 PEG - 6000 绿豆 种子萌发 |
Effects of Drought Stress on Seed Germination of Different Mung Beans |
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| WANG Fu-gang,WANG Yan-feng.Effects of Drought Stress on Seed Germination of Different Mung Beans[J].Journal of Yulin College,2014(6):1-5. |
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| Authors: | WANG Fu-gang WANG Yan-feng |
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| Institution: | WANG Fu-gang, WANG Yan-feng ( 1. College of Life Science, Yanan University, Yanan 716000,China; 2. College of Life Science, Yulin University, Yulin 719000, China) |
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| Abstract: | This research,taking 4 kinds of mung beans as materials,uses different concentrations of PEG - 6000 to process the seed of mung bean. In order to inquire the effects of drought stress on seed germination of different mung beans,it measures the change of the germination vigor,germination rate,embryo length,radicle length and the enzyme activity of SOD,CAT and POD. The results show that the germination vigor,germination rate,embryo length and radicle length begin to fall slowly. The enzyme activities of SOD,CAT and POD increase slightly when the concentration of PEG - 6000 is between 5 - 10% ;When the PEG concentration is 15% ,the enzyme activity rise rapidly to the highest level,and the enzyme activities increase differently;When the PEG concentration rise to 20% ,the enzyme activity rapidly falls. |
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| Keywords: | drought stress PEG - 6000 mung bean seed germination |
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