| UV-B增加与酸雨复合处理对大豆种子萌发和幼苗生长的影响 |
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| 引用本文： | 胡正华,索福喜,赵晓莉,黎明,郑有飞.UV-B增加与酸雨复合处理对大豆种子萌发和幼苗生长的影响[J].生态环境,2005,14(4):523-525. |
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| 作者姓名： | 胡正华 索福喜 赵晓莉 黎明 郑有飞 |
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| 作者单位： | 1. 南京信息工程大学环境科学系,江苏,南京,210044
2. 苏州大学生命科学学院,江苏,苏州,215006 |
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| 基金项目： | 国家自然科学基金项目（40175029）;南京信息工程大学科研基金项目（Y410）. |
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| 摘 要： | 研究了UV-B辐射增加与酸雨的复合处理对大豆种子萌发和幼苗生长的影响。结果表明：UV-B辐射增加对大豆种子的萌发没有影响，酸雨处理降低了大豆种子的发芽率。UV-B辐射增加与酸雨的复合处理，降低了幼苗的株高、绿叶数、叶面积、干质量、叶绿素和蒸腾速率，复合胁迫的下降幅度明显高于单一因子胁迫，并且下降幅度受UV-B辐射强度与酸雨pH的影响。UV-B辐射增加与酸雨处理在抑制幼苗生长上具有协同作用。
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| 关 键 词： | 紫外B辐射 酸雨 大豆 种子萌发 幼苗 |
| 文章编号： | 1672-2175（2005）04-0523-03 |
| 收稿时间： | 2005-01-31 |
| 修稿时间： | 2005年1月31日 |
The interactive effect of enhanced UV-B radiation and acid rain on seed germination and seedling growth of soybean |
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| HU Zheng-hua,SUO Fu-xi,ZHAO Xiao-li,LI Ming,ZHENG You-fei.The interactive effect of enhanced UV-B radiation and acid rain on seed germination and seedling growth of soybean[J].Ecology and Environmnet,2005,14(4):523-525. |
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| Authors: | HU Zheng-hua SUO Fu-xi ZHAO Xiao-li LI Ming ZHENG You-fei |
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| Abstract: | The interactive effect of enhanced UV-B radiation and acid rain on seed germination and seedling growth of soybean were investigated. The results showed that enhanced UV-B radiation had no effect on seed germination, while acid rain decreased seed germination, The interactive effect of enhanced UV-B radiation and acid rain resulted in reduction of height, leaf number, leaf area and dry weight. At the same time, the content of chlorophyll and transpiration in leaf were decreased. The decreasing degrees of seedling growth under combined stress were significantly higher than under single stress, and the decreasing degrees were influenced by the dose of UV-B and pH of acid rain. The effect of enhanced UV-B radiation was cooperated with acid rain on seedling growth of soybean. |
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| Keywords: | UV-B radiation acid rain soybean seed germination seedling |
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