| 杂交中稻氮肥高效利用与高产组合的植株形态特征研究 |
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| 引用本文： | 徐富贤 熊,洪 张林 朱永川 唐有才 周兴兵 郭晓艺 刘茂.杂交中稻氮肥高效利用与高产组合的植株形态特征研究[J].中国农学通报,2011,27(5):58-64. |
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| 作者姓名： | 徐富贤 熊 洪 张林 朱永川 唐有才 周兴兵 郭晓艺 刘茂 |
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| 作者单位： | 1. 四川省农业科学院水稻高粱研究所,四川泸州,646000
2. 泸州市农科所,四川泸州,646000 |
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| 基金项目： | 粮食丰产科技工程(2006BAD02A05); 农业科技成果转化资金(2006GB2F000256); 四川省青年基金(04ZQ026-006); 农业结构调整重大技术研究专项(2004-01-06B); 四川省水稻育种攻关 |
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| 摘 要： | 以16个杂交中稻组合为材料，在正常施氮和不施氮条件下研究了杂交中稻氮肥利用率与组合间植株地上部形态特征的关系。结果表明，杂交中稻的氮肥利用率存在显著的基因型差异，氮吸收利用率和氮农学利用率是杂交水稻选择氮素高效利用与高产组合的重要指标。在22个形态因子中，同时对氮吸收利用率和氮农学利用率2项指标都起重要作用的性状有最高苗、粒叶比、倒3叶长度、倒3叶宽度和千粒重。在高产正常施氮水平条件下，杂交中稻氮高效利用与高产并重组合的植株主要形态特征是：分蘖力强，齐穗期粒叶比小，倒3叶长而窄，结实率、千粒重、生物产量和收割指数高，对氮吸收利用率和氮农学利用率的决定系数分别为93.99%和95.82%。可作为杂交后代及组合鉴定时田间选择的参考指标。
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| 关 键 词： | 蔬菜轮作 蔬菜轮作 土壤微生物 |
| 收稿时间： | 2010/10/9 0:00:00 |
| 修稿时间： | 2010/10/29 0:00:00 |
A Study on Plant Shape Characters of Nitrogen High Efficiency and High Yield Varieties in Mid-season Hybrid Rice |
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| Xu Fuxian,Xiong Hong,Zhang Lin,Zhu Yongchuan,Tang Youcai,Zhou Xingbing,Guo Xiaoyi,Liu Mao.A Study on Plant Shape Characters of Nitrogen High Efficiency and High Yield Varieties in Mid-season Hybrid Rice[J].Chinese Agricultural Science Bulletin,2011,27(5):58-64. |
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| Authors: | Xu Fuxian Xiong Hong Zhang Lin Zhu Yongchuan Tang Youcai Zhou Xingbing Guo Xiaoyi Liu Mao |
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| Institution: | Xu Fuxian 1,Xiong Hong 1,Zhang Lin 1,Zhu Yongchuan 1,Tang Youcai 2,Zhou Xingbing 1,Guo Xiaoyi 1,Liu Mao 1 ( 1 Rice and Sorghum Institute,Sichuan Academy of Agricultural Sciences,Luzhou 646000,2 Luzhou Municipal Institute of Agriculture Sciences,Luzhou 646000) |
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| Abstract: | In this treatise, the plant shape characters of nitrogen high efficiency and high yield variety was investigated using 16 mid-season hybrid rice combinations in two levers nitrogen applied. The results showed that there were significant genotype differences in nitrogen efficiency, the nitrogen recovery efficiency and the nitrogen agronomic efficiency are the important index for selecting nitrogen high efficiency and high yield variety in mid-season hybrid rice. In 22 plant shape characters, there were signi... |
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| Keywords: | mid-season hybrid rice genotype nitrogen high efficiency shape character |
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