| 玉米氮效率性状的配合力分析 |
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| 引用本文： | 陈范骏,米国华,刘向生,刘建安,王艳,张福锁.玉米氮效率性状的配合力分析[J].中国农业科学,2003,36(2):134-139. |
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| 作者姓名： | 陈范骏 米国华 刘向生 刘建安 王艳 张福锁 |
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| 作者单位： | 农业部植物营养学重点实验室,教育部植物-土壤相互作用重点实验室/中国农业大学植物营养系,北京,100094 |
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| 基金项目： | 国家“83 6”资助项目 ( 2 0 0 1AA2 410 5 1)，“973”资助项目 (G19990 1170 7) |
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| 摘 要： | 在筛选氮高效自交系工作的基础上 ,利用NC Ⅱ设计 ,在两个氮水平下 (2 0 0kg·ha-1和不施氮 ) ,对 18个自交系配合力作出评价。结果表明 ,高氮条件下 ,氮效率受非加性效应控制 ,对氮高效育种有价值的自交系有2 199+ 、河农 7、河农 11;而在低氮条件下 ,氮效率受加性效应控制 ,792 2、2 199+ 、河农 7、河农 9、115 4在耐低氮育种中利用价值较高。在两个氮水平下 ,组合F1代产量与配合力总效应呈极显著正相关。氮吸收效率的遗传力大于氮利用效率。
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| 关 键 词： | 玉米 氮效率 配合力 遗传力 |
| 修稿时间： | 2001年12月6日 |
Combination Ability Analysis of Traits Related to Nitrogen Use Efficiency in Maize |
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| CHEN Fan jun,MI Guo hua,LIU Xiang sheng,LIU Jian an,WANG Yan,ZHANG Fu suo.Combination Ability Analysis of Traits Related to Nitrogen Use Efficiency in Maize[J].Scientia Agricultura Sinica,2003,36(2):134-139. |
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| Authors: | CHEN Fan jun MI Guo hua LIU Xiang sheng LIU Jian an WANG Yan ZHANG Fu suo |
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| Abstract: | Based on the selected maize inbred lines with different nitrogen use efficiency (NUE), the combination ability was analyzed with 18 inbred lines and 4 test lines under high (200 kg ha -1 ) and low N (no N) by NC II design. The results showed that, at high N, NUE was controlled by non additative effect, and 2199 +, Henong7, Henong11 were promising lines for breeding for NUE. At low N, NUE was controlled by additative effect, and 7922, 2199 +, Henong 7, Henong 9 and 1154 were promising for breeding for tolerance to low N. There was a significant positive correlation between F 1 yield and its total combination ability effect at both N Levels. The genetic ability of N uptake efficiency was higher than that of N utilization efficiency. |
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| Keywords: | Maize N efficiency Combination ability Genetic ability |
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