| 不同玉米品种耐低氮能力鉴定与评价 |
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| 引用本文： | 张兴华,薛吉全,刘万锋,李凤艳,张仁和.不同玉米品种耐低氮能力鉴定与评价[J].西北农业学报,2010,19(8):65-68. |
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| 作者姓名： | 张兴华 薛吉全 刘万锋 李凤艳 张仁和 |
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| 作者单位： | 1. 西北农林科技大学农学院,陕西杨凌,712100
2. 渭南市农业技术推广中心,陕西渭南,714000 |
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| 基金项目： | 西北农林科技大学唐忠英育种基金 |
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| 摘 要： | 选用30个生产上推广的玉米品种,以耐低氮胁迫指数为玉米表型性状的相对值,通过分析不同施氮水平下相关性状的变化,探讨玉米品种耐低氮能力鉴定指标,筛选耐低氮玉米品种。结果表明,相对单穗质量(低氮胁迫指数)在所有调查性状的相对值中变异幅度最大;相对单穗质量与相对千粒质量、相对穗长和相对穗粒数呈极显著正相关(P0.01)。以相对单穗质量作为鉴定玉米品种耐低氮能力的核心指标,千粒质量、穗长和穗粒数作为间接筛选指标,初步筛选出了郑单958、陕单8815、京科28等具有较强耐低氮能力的品种。
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| 关 键 词： | 玉米 耐低氮胁迫 农艺性状 |
Screening and Identification of Low Nitrogen Tolerance in Different Maize hybrids |
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| ZHANG Xinghu,XUE Jiquan,LIU Wanfeng,LI Fengyan and ZHANG Renhe.Screening and Identification of Low Nitrogen Tolerance in Different Maize hybrids[J].Acta Agriculturae Boreali-occidentalis Sinica,2010,19(8):65-68. |
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| Authors: | ZHANG Xinghu XUE Jiquan LIU Wanfeng LI Fengyan and ZHANG Renhe |
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| Institution: | ZHANG Xinghua1,XUE Jiquan1,LIU Wanfeng2,LI Fengyan1 and ZHANG Renhe1(1.College of Agronomy,Northwest A&F University,Yangling Shaanxi 712100,China,2.Weinan Extension Center of Agricaltural Techndogy,Weinan Shaanxi 714000,China) |
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| Abstract: | The field experiment was conducted with 30 different maize cultivars and measured the relative values of maize agronomic traits which indicated with low-nitrogen-tolerance indexes.Variations of the related agronomic traits under the treatments of the tested nitrogen application rates were used for selection of low-nitrogen-tolerance and determination of low-nitrogen-tolerant variety.The results showed that relative weight per ear varied mostly among the measured traits.The relative weight per ear was signif... |
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| Keywords: | Maize Tolerance to low nitrogen stress Agronomic trait |
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