| 不同基因型水稻氮素的吸收和利用效率研究综述 |
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| 引用本文： | 夏冰,刘清波,邓念丹.不同基因型水稻氮素的吸收和利用效率研究综述[J].作物研究,2008,22(4). |
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| 作者姓名： | 夏冰 刘清波 邓念丹 |
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| 作者单位： | 1. 湖南农业大学农学院,长沙,410128
2. 湖南农业大学生命科学技术学院,长沙,410128 |
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| 基金项目： | 湖南省教育厅科学技术项目 |
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| 摘 要： | 综述了水稻氮素的吸收量和利用效率及其与产量、产量构成、株高、叶面积指数等农艺性状的关系，指出水稻氮素的吸收量和氮素的籽粒生产效率，在不同籼粳亚种间和相同亚种的不同品种间均存在显著的基因型差异，并与籽粒产量呈显著正相关，这为超级稻实现高产量和氮素高效利用的目标提供了理论依据。还讨论了根系吸收氮素的能力，土壤氮素的供应能力和栽培环境条件对水稻氮素吸收效率的影响，以及增强水稻氮素吸收能力和高利用效率的育种学途径。
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| 关 键 词： | 水稻 氮 吸收 利用 |
Review on Genotype Differences in Nitrogen Uptake and Utilization Efficiency in Rice |
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| XIA Bing,LIU Qing-bo,DENG Nian-dan.Review on Genotype Differences in Nitrogen Uptake and Utilization Efficiency in Rice[J].Crop Research,2008,22(4). |
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| Authors: | XIA Bing LIU Qing-bo DENG Nian-dan |
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| Institution: | XIA Bing1,LIU Qing-bo2,DENG Nian-dan2(1 College of Agronomy,Hunan Agricultural University,Changsha,Hunan,410128,China,2 College of Bio-science , technology,China) |
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| Abstract: | The genotype differences in nitrogen uptake and utilization efficiency and their relationship with yield,yield components,plant height,leaf area index(LAI) were reviewed in this paper.Significant genotype differences in nitrogen uptake and its grain production efficiency were existed between Indica rice and Japonica rice and among the varieties of the same subspecies.There existed significant positive correlation between yield and nitrogen uptake and its grain production efficiency,respectively,which provid... |
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| Keywords: | Rice Nitrogen Uptake Utilization |
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