| 河南省不同小麦品种氮效率的差异研究 |
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| 引用本文： | 郭战玲,沈阿林,寇长林,马政华,王守刚.河南省不同小麦品种氮效率的差异研究[J].华北农学报,2009,24(2). |
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| 作者姓名： | 郭战玲 沈阿林 寇长林 马政华 王守刚 |
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| 作者单位： | 河南省农业科学院植物营养与资源环境研究所,河南,郑州,450002 |
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| 基金项目： | 河南省杰出青年科学基金，国家科技支撑计划 |
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| 摘 要： | 选择近年来在河南推广的8个小麦品种,在低氮和高氮2个水平下研究了不同小麦品种氮效率的差异.结果表明:随着施氮量的增加各品种的产量都有所提高,提高的幅度与品种对氮的敏感性有关.在2个氮水平下,8个小麦品种氮效率存在着很大的差异,其中,郑麦004号、太空6号、郑麦9023、周麦16号和豫麦50号在2个氮水平下的氮效率都较高.通径分析结果表明,在低氮水平下,氮效率主要由氮吸收效率决定,在高氮水平下则由氮吸收效率和氮利用效率共同决定.
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| 关 键 词： | 小麦 品种 氮吸收效率 氮利用效率 氮效率 |
Differences of Nitrogen Efficiency in Henan Wheat Varieties |
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| GUO Zhan-ling,SHEN A-lin,KOU Chang-lin,MA Zheng-hua,WANG Shou-gang.Differences of Nitrogen Efficiency in Henan Wheat Varieties[J].Acta Agriculturae Boreali-Sinica,2009,24(2). |
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| Authors: | GUO Zhan-ling SHEN A-lin KOU Chang-lin MA Zheng-hua WANG Shou-gang |
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| Institution: | Institute of Plant Nutrition Agricultural Resources and Environmental Science;Henan Academy of Agriculture Sciences;Zhengzhou 450002;China |
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| Abstract: | A pot experiment with eight wheat varieties from Henan province was conducted to investigate the genotype differences in N efficiency at two rates of N supply.The results showed that the grain yields of all varieties increased significantly with the increase of nitrogen application.The increasing rates were related to the variety sensitivity to N.The difference of N efficiency was obvious among the 8 wheat varieties.The N efficience of Zhengmai 004,Taikong 6,Zhengmai 9023,Zhoumai 16 and Yumai 50 were very h... |
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| Keywords: | Wheat Varieties Nitrogen uptake efficiency Nitrogen utilization efficiency Nitrogen efficiency |
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