| 外源IAA对杂交稻生育后期叶片生理特性的影响 |
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| 引用本文： | 陈海生. 外源IAA对杂交稻生育后期叶片生理特性的影响[J]. 河南农业科学, 2012, 41(5): 31-32 |
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| 作者姓名： | 陈海生 |
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| 作者单位： | 河南大学生态科学与技术研究所,河南开封475004;浙江同济科技职业学院,浙江杭州311231 |
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| 基金项目： | 河南省教育厅自然科学研究项目 |
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| 摘 要： | 以亚种间超级杂交稻组合两优培九为材料,研究了外源生长素(IAA)对亚种间杂交稻生育后期剑叶中叶绿素含量、SOD活性以及MDA含量的影响。结果表明:外源IAA分别使齐穗后第10天和第20天的剑叶叶绿素含量提高25.1%和21.6%,SOD活性提高28.6%和23.2%,MDA含量分别降低42.63%和39.89%。外源IAA通过促进叶片SOD活性和降低MDA含量,从而维持细胞膜的完整性,延缓了叶片的衰老进程。
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| 关 键 词： | 生长素 亚种间杂交稻 叶绿素 超氧化物岐化酶 丙二醛 |
Effects of Exogenous IAA on Leaf Physiological Characteristics at Late Stage of Indica-japonica Hybrid Rice |
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| CHEN Hai-sheng. Effects of Exogenous IAA on Leaf Physiological Characteristics at Late Stage of Indica-japonica Hybrid Rice[J]. Journal of Henan Agricultural Sciences, 2012, 41(5): 31-32 |
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| Authors: | CHEN Hai-sheng |
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| Affiliation: | CHEN Hai-sheng1,2(1.Institute of Ecological Science and Technology,Henan University,Kaifeng 475004,China; 2.Zhejiang Tongji Vocational College of Science and Technology,Hangzhou 311231,China) |
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| Abstract: | Using indica-japonica hybrid rice Liangyoupeijiu as materials,the effects of exogenous IAA on chlorophyll content,SOD activity and MDA content in flag leaf after heading were studied in this experiment.The results showed that application of IAA increased the chlorophyll content by 25.1% and 21.6%,increased the SOD activity by 28.6% and 23.2%,and reduced the MDA content by 42.63% and 39.89%,respectively,in the flag leaf on the 10th day and the 20th day at the heading stage.Exogenous IAA could maintain the stability of cell membrane and keep the retardation of senescence by enhancing the SOD activity and reducing the MDA content in leaves. |
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| Keywords: | IAA Indica-Japonica hybrid rice chlorophyll SOD MDA |
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