| 茄子氮效率基因型差异的研究 |
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| 引用本文： | 赵付江,申书兴,李青云,陈雪平,刘建玲,罗双霞,李晓峰.茄子氮效率基因型差异的研究[J].华北农学报,2007,22(6):60-64. |
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| 作者姓名： | 赵付江 申书兴 李青云 陈雪平 刘建玲 罗双霞 李晓峰 |
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| 作者单位： | 1. 河北农业大学,园艺学院,河北,保定,071001
2. 河北农业大学,资源与环境学院,河北,保定,071001 |
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| 基金项目： | 科技部成果转化基金资助项目(05EFN211300022)，河北省科技攻关项目(06220110D)，河北省农开办资助项目 |
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| 摘 要： | 为了解茄子的氮素吸收利用特性和筛选氮高效基因型,采用田间小区试验和测试分析方法,通过测定茄子产量、氮利用效率、氮响应度和氮素吸收总量等指标,对10个茄子基因型进行了氮效率方面的研究。结果表明,不同基因型茄子的产量、氮利用效率、氮响应度和氮素吸收总量均存在显著差异。根据供试材料在施氮和不施氮处理下氮效率的不同将供试10个基因型划分为5种类型:高氮高效-低氮高效型(HH-LH)包括06-991;高氮高效-低氮中效型(HH-LM)包括06-917;高氮高效-低氮低效型(HH-LL)包括06-961和06-867;高氮中效-低氮低效型(HM-LL)包括06-972,06-947,06-854,06-830和06-909;高氮低效-低氮低效型(HL-LL)包括06-910。对氮效率构成因素通径分析表明,氮素吸收总量对氮效率的直接作用大于氮利用效率的直接作用,氮素吸收总量是决定氮效率的主要因素。
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| 关 键 词： | 茄子 氮效率 基因型差异 |
| 文章编号： | 1000-7091（2007）06-0060-05 |
| 收稿时间： | 2007-10-08 |
| 修稿时间： | 2007年10月8日 |
Genotypic Variation in Nitrogen Use Efficiency in Eggplants |
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| ZHAO Fu-jiang,SHEN Shu-xing,LI Qing-yun,CHEN Xue-ping,LIU Jian-ling,LUO Shuang-xia,LI Xiao-feng.Genotypic Variation in Nitrogen Use Efficiency in Eggplants[J].Acta Agriculturae Boreali-Sinica,2007,22(6):60-64. |
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| Authors: | ZHAO Fu-jiang SHEN Shu-xing LI Qing-yun CHEN Xue-ping LIU Jian-ling LUO Shuang-xia LI Xiao-feng |
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| Abstract: | In order to understand the characteristic of nitrogen uptake and utilization and selecting high nitrogen use efficiency genotype in eggplant.Field experiment and testing analysis were conducted to study the genotypic variation in nitrogen use efficiency in ten genotypes of eggplant by quantify analyzing fruit yield,nitrogen utilization efficiency,nitrogen response and total nitrogen.The results showed that there were significant genotypic variations in fruit yield,nitrogen utilization efficiency,nitrogen responsiveness and total nitrogen among different eggplant genotypes whatever nitrogen application rate.The tested eggplant genotypes could be classified into five different types based on their nitrogen use efficiency.06-991 belonged to HH-LH type(high N use efficiency at high nitrogen level,high N use efficiency at low nitrogen level);06-917 belonged to HH-LM type(high N use efficiency at high nitrogen level,mid N use efficiency at low nitrogen level);06-961 and 06-867 belonged to HH-LL type(high N use efficiency at high nitrogen level,low N use efficiency at low nitrogen level);06-972,06-947,06-854,06-830 and 06-909 belonged to HM-LL type(mid N use efficiency at high nitrogen level,low N use efficiency at low nitrogen level);06-910 belonged to HL-LL type(low N use efficiency at high nitrogen level,low N use efficiency at low nitrogen level).Through path analysis,it was found that the effect of total nitrogen on nitrogen use efficiency was more important than nitrogen utilization efficiency. |
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| Keywords: | Eggplant Nitrogen use efficiency Genotypic variation |
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