| 缺氮条件下玉米自交系叶绿素含量与光合效率的变化 |
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| 引用本文： | 汤继华,谢惠玲,黄绍敏,胡彦民,刘宗华,季洪强,寇志安.缺氮条件下玉米自交系叶绿素含量与光合效率的变化[J].华北农学报,2005,20(5):10-12. |
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| 作者姓名： | 汤继华 谢惠玲 黄绍敏 胡彦民 刘宗华 季洪强 寇志安 |
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| 作者单位： | 河南农业大学,农学院,河南,郑州,450002;河南省农业科学院土壤肥料研究所,河南,郑州,450002 |
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| 基金项目： | 国家863重大专项项目资助（2002AA207008） |
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| 摘 要： | 在低氮胁迫条件下，对25个玉米自交系穗三叶叶绿素含量、光合速率等进行了研究。结果表明：不同玉米自交系穗三叶叶绿素含量的降低呈现相似的规律性，光合速率也出现不同程度的降低，不同自交系间降低的幅度存在较大差异。穗位叶叶绿素含量的降低可作为氮素利用效率的次级选择指标，以穗位叶叶绿素含量降低的百分率为指标，将供试材料分成4类，其中许178、辽5114等自交系叶绿素含量降低幅度较小，具有较高的氮素利用效率。
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| 关 键 词： | 玉米自交系 低氮胁迫 叶绿素含量 光合速率 |
| 文章编号： | 1000-7091（2005）05-0010-03 |
| 收稿时间： | 2004-11-22 |
| 修稿时间： | 2004-11-22 |
The Changes of the Content for Chlorophyll and Photosynthetic Productivity in Maize Inbred Lines under the Low-nitrogen Stress |
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| TANG Ji-hua,XIE Hui-ling,HUANG Shao-min,HU Yan-min,LIU Zong-hua,JI Hong-qiang,KOU Zhi-an.The Changes of the Content for Chlorophyll and Photosynthetic Productivity in Maize Inbred Lines under the Low-nitrogen Stress[J].Acta Agriculturae Boreali-Sinica,2005,20(5):10-12. |
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| Authors: | TANG Ji-hua XIE Hui-ling HUANG Shao-min HU Yan-min LIU Zong-hua JI Hong-qiang KOU Zhi-an |
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| Institution: | 1. College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; 2. Soil and Fertilizer Institute, Henan Academy of Agricultural Science, Zhengzhou 450002, China |
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| Abstract: | Under low nitrogen condition, the photosynthetic productivity and the content of chlorophyll in the three leaves of ear were studied in maize inbred lines. The photosynthetic productivity and the content of chlorophyll in the three leaves of ear all dropped contrast with the control. Using the percentage of dropped content of chlorophyll as the criterion, 25 inbred lines could be divided in 4 groups, the maize inbred lines Xu 178 and Liao 5114 had high nitrogen utilization. |
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| Keywords: | Maize inbred lines Low nitrogen stress The content of chlorophyll Photosynthetic productivity |
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