| 不同激素对早稻剑叶和根系衰老特性影响的研究 |
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| 引用本文： | 孙刚,张文学,李祖章,刘光荣,谢金水.不同激素对早稻剑叶和根系衰老特性影响的研究[J].江西农业学报,2009,21(2). |
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| 作者姓名： | 孙刚 张文学 李祖章 刘光荣 谢金水 |
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| 作者单位： | 1. 江西省农业科学院,土壤肥料与资源环境研究所,江西,南昌,330200
2. 江西省农业科学院,江西,南昌,330200 |
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| 基金项目： | 国家科技支撑计划，江西省农科院院长基金 |
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| 摘 要： | 水培条件下探讨了在水稻齐穗过程中,不同种类激素对水稻剑叶和根系中活性氧代谢和产量的影响。结果表明;不同种类的外源激素对水稻衰老特性的影响不尽相同。在水稻齐穗时,叶片和根系的丙二醛含量之间的差异并不大。喷施不同外源激素7 d后,与对照相比较,激动素可降低叶片中丙二醛含量40.4%,使叶片中的O2-产生速率降低到33.56μg/gFW.min。三十烷醇可使叶绿素含量提高58.3%,并使O2-产生速率降低到34.79μg/g FW.min。喷施三十烷醇的水稻叶片和根系中CAT酶的活性最高,分别比同时期清水对照的高出25.9%和65.9%。喷施14 d后,三十烷醇可提高叶绿素含量136.5%,可使剑叶中O2-产生速率降低到34.79μg/g FW.min,叶片和根系中CAT活性仍高出对照212.1%和158.8%。虽然三十烷醇延缓水稻衰老的作用很显著,但赤霉素可使水稻结实率提高4.1%,6-苄基腺嘌呤的增产幅度却是最大。
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| 关 键 词： | 激素 早稻 水稻 剑叶 根系 衰老特性 |
Study on Effect of Different Hormones on Senescence of Flag Leaf and Root System of Early Rice |
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| SUN Gang,ZHANG Wen-xue,LI Zu-zhang,LIU Guang-rong,XIE Jin-shui.Study on Effect of Different Hormones on Senescence of Flag Leaf and Root System of Early Rice[J].Acta Agriculturae Jiangxi,2009,21(2). |
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| Authors: | SUN Gang ZHANG Wen-xue LI Zu-zhang LIU Guang-rong XIE Jin-shui |
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| Institution: | 1.Institute of Soil and Fertilizer & Resource and Environment;Jiangxi Academy of Agricultural Sciences;Nanchang 330200;China;2.Jiangxi Academy of Agricultural Sciences;China |
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| Abstract: | Solution culture experiment with rice seedling was conducted to study the effects of different hormones on the metabolism of active oxygen in rice flag leaf and root system.The results showed different hormones had different effects on the senescence character of early rice.At early full heading stage,the malondialdehyde content in flag leaf and root had no significant difference.After 7 days of spraying different hormones,in comparison with spraying water treatment,the malondialdehyde content and the autox... |
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| Keywords: | Hormone Early rice Flag leaf Senescence character |
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