| 干旱胁迫对水稻种子萌发的影响 |
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| 引用本文： | 郁飞燕,张联合,李艳艳,李友军,赵巍.干旱胁迫对水稻种子萌发的影响[J].山东农业科学,2011(8):36-39. |
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| 作者姓名： | 郁飞燕 张联合 李艳艳 李友军 赵巍 |
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| 作者单位： | 河南科技大学农学院,河南洛阳,471003 |
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| 基金项目： | 河南科技大学学校人才基金项目(编号:09001107); 学校基金项目(编号:13560036); 土壤与农业可持续发展国家重点实验室开放基金项目(编号:0751010012)资助 |
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| 摘 要： | 采用聚乙二醇（PEG-6000）模拟干旱条件，探讨了干旱对水稻种子萌发的影响。结果表明：干旱胁迫显著降低了水稻种子发芽率；较低浓度的PEG处理，能显著提高可溶性糖含量、α-淀粉酶活性和根系活力，对种子根伸长也表现出显著的促进作用；较高浓度的PEG处理，能不同程度地抑制α-淀粉酶活性，降低根系活力和可溶性糖含量以及抑制种子根伸长：不同浓度PEG处理，能不同程度地降低萌发种子中可溶性蛋白含量，提高游离氨基酸含量。
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| 关 键 词： | 干旱胁迫 水稻种子 萌发 |
Effect of Drought Stress on Germination of Rice Seeds |
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| YU Fei-yan,ZHANG Lian-he,LI Yan-yan,LI You-jun,ZHAO Wei.Effect of Drought Stress on Germination of Rice Seeds[J].Shandong Agricultural Sciences,2011(8):36-39. |
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| Authors: | YU Fei-yan ZHANG Lian-he LI Yan-yan LI You-jun ZHAO Wei |
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| Institution: | YU Fei-yan,ZHANG Lian-he,LI Yan-yan,LI You-jun,ZHAO Wei(College of Agronomy,Henan University of Science and Technology,Luoyang 471003,China) |
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| Abstract: | The effect of drought on the germination of rice seeds was studied under the drought stress simulated with polyethylene glycol(PEG-6000).The results indicated that the germination rate of rice seeds was reduced significantly.The content of soluble sugar,α-amylase activity,root activity and root length were increased at lower PEG level but reduced at higher PEG level.The content of soluble protein was reduced and the content of free amino acids increased under different PEG levels. |
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| Keywords: | Drought stress Rice seed Germination |
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