| 不同基因型大麦苗期对低氮胁迫的生物学响应 |
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| 引用本文： | 陈志伟,何婷,陆瑞菊,王亦菲,邹磊,杜志钊,单丽丽,何烨,黄剑华.不同基因型大麦苗期对低氮胁迫的生物学响应[J].上海农业学报,2010,26(1):28-32. |
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| 作者姓名： | 陈志伟 何婷 陆瑞菊 王亦菲 邹磊 杜志钊 单丽丽 何烨 黄剑华 |
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| 作者单位： | 1. 上海市农业科学院生物技术研究所,上海,201106
2. 上海市农业遗传育种重点实验室,上海,201106 |
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| 基金项目： | 上海市基础研究重点项目，公益性行业(农业)科研专项，国家科技支撑计划，上海市农科院青年科技发展基金[农青年科技2007，2009(20)]资助 |
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| 摘 要： | 采用溶液培养试验的方法，对6个不同基因型大麦品种苗期耐低氮性状指标进行了研究。结果表明：单株吸氮量、根于重、地上部于重、植株干重、分蘖数和根长在品种间存在极显著差异；不同供氮水平对根长以外的各性状都有极显著的影响；各相对性状也存在不同程度的基因型差异，相对分蘖数〉相对地上部干重=相对植株干重〉相对根干重〉相对单株吸氮量〉相对根长〉相对氮素生理利用效率〉相对株高。相关性分析表明：单株吸氮量和苗期各干重指标间互呈极显著正相关关系；相对单株吸氮量、相对株高和苗期各相对干重指标间 互呈极显著相关关系。
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| 关 键 词： | 大麦 耐低氮 氮素生理利用效率 单株吸氮量 相对性状 |
Biological responses of different-genotype barleys to low nitrogen stress at seedling stage |
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| CHEN Zhi-wei,HE Ting,LU Rui-ju,WANG Yi-fei,ZOU Lei,DU Zhi-zhao,SHAN Li-li,HE Ye,HUANG Jian-hua.Biological responses of different-genotype barleys to low nitrogen stress at seedling stage[J].Acta Agriculturae Shanghai,2010,26(1):28-32. |
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| Authors: | CHEN Zhi-wei HE Ting LU Rui-ju WANG Yi-fei ZOU Lei DU Zhi-zhao SHAN Li-li HE Ye HUANG Jian-hua |
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| Institution: | CHEN Zhi-wei,HE Ting,LU Rui-ju,WANG Yi-fei,ZOU Lei,DU Zhi-zhao,SHAN Li-li,HE Ye,HUANG Jian-hua(Biotech Research Institute,SAAS,Shanghai 201106,China,Shanghai Key Laboratory of Agricultural Genetics , Breeding,China) |
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| Abstract: | Six barley varieties were used as test materials and characters of seedling-stage barleys with different genotypes were studied under low nitrogen stress by hydroponic culture to get simple and effective indices of screening low-nitrogen tolerance.The results showed that there were very significant differences among the varieties in nitrogen uptake per plant,tiller number,root length and dry weights of roots,aerial part and plant.Nitrogen-supply levels had very significant effects on their characters except... |
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| Keywords: | Barley Low-nitrogen tolerance Nitrogen utilization efficiency Nitrogen uptake per plant Relative character |
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