| 铅胁迫对水稻种子萌发及生理特性的影响 |
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| 引用本文： | 刘枫.铅胁迫对水稻种子萌发及生理特性的影响[J].现代农业科技,2011(17):58-59. |
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| 作者姓名： | 刘枫 |
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| 作者单位： | 广西壮族自治区梧州市农产品综合质量安全检测中心,广两梧州,543002 |
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| 摘 要： | 以Y两优1号为材料,研究不同浓度的铅(Pb2+)溶液对水稻种子萌发及生理特性的影响。结果表明:Pb2+对水稻种子萌发有较大的抑制作用;Pb2+浓度低于100 mg/L时,能在一定程度上促进水稻种子的发芽率;随着Pb2+浓度的提高,Pb2+胁迫对水稻种子萌发的抑制作用越大,水稻种子的苗高、根长、根数、根鲜重、苗鲜重以及叶片叶绿素含量明显降低,而根系丙二醛含量显著增加。
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| 关 键 词： | 铅 水稻 发芽率 生理特性 |
Effects of Lead Stress on Seed Germination and Physiological Traits in Rice |
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| Authors: | LIU Feng |
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| Institution: | (Agricultural Products′ Comprehensive Quality and Safety Test Center of Wuzhou City in Guangxi Zhuang Autonomous Region, Wuzhou Guangxi 543002) |
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| Abstract: | Using Y Liangyou No.1 as material,the paper studied the effect of Pb2+ in different densities of rice on the seed germination and physiological traits.The results showed that lead had a bigger inhibitory effect on the seed germination of rice,it could promote the germination percentage of the rice seed when the concentration of Pb2+ was lower than 100 mg/L.With the increasing of Pb2+ concentration,the inhibitory effect on the germination of rice seed increased,and seedling height,root length,root number,roo... |
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| Keywords: | lead rice seeds germination percentage physiological traits |
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