| 氮源对结瘤烟草生长和固氮活性的影响 |
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| 引用本文： | 陈今朝,向邓云,冉景盛.氮源对结瘤烟草生长和固氮活性的影响[J].安徽农业科学,2008,36(34). |
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| 作者姓名： | 陈今朝 向邓云 冉景盛 |
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| 作者单位： | 长江师范学院生命科学系,重庆,408100 |
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| 基金项目： | 重庆市教委科研项目，长江师范学院科研项目 |
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| 摘 要： | 目的]研究氮源对结瘤烟草生长和固氮的影响。方法]用豇豆512根瘤菌(R. Leguminosarum)诱导烟草结瘤并研究不同氮源对植株生长的影响。结果]结果表明,在一定浓度范围内,NO3-和NH4+均能促进植物生长和类根瘤的形成;(NH4)2SO4对植物生长和类根瘤形成的促进作用比前两者差。结论]烟草类根瘤具有一定的固氮活性。
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| 关 键 词： | 氮源 结瘤烟草 生长 固氮活性 |
Influence of Nitrogen Source on Growth and Nitrogen Fixation of Nodulated Tobacco |
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| Abstract: | Objective] The aim of research was to study the influence of nitrogen source on growth and nitrogen fixation of nodulated tobacco.Method] Inducing the tobacco nodulation by using R.Leguminosarum 512 and influence of the different nitrogen source on tobacco growth was studied.Result]The results indicated that NO3-and NH4+ could promote the plant growth and formation of para-nodules in the different degree;(NH4)2SO4 had less promoting on growth and ratio of nodulation.Conclusion]The tobacco para-nodules had some nitrogenase activity. |
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| Keywords: | Nitrogen source Nodulated tobacco Growth Nitrogenase activity |
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