| UV-B增加对麦田杂草看麦娘的影响 |
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| 引用本文： | 王传海,郑有飞,刘炜杰,杨荣敏,王鑫.UV-B增加对麦田杂草看麦娘的影响[J].生态环境,2005,14(2):247-249. |
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| 作者姓名： | 王传海 郑有飞 刘炜杰 杨荣敏 王鑫 |
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| 作者单位： | 南京信息工程大学环境科学系,江苏,南京,210044 |
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| 基金项目： | 国家自然科学基金项目(40175029)，江苏省“333工程”资助 |
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| 摘 要： | 在大田群体条件下，研究了UV-B增加对麦田杂草发生、生长和种子产量的影响。结果表明：UV-B强度增加，看麦娘的密度显著增加；在小麦生育前期，看麦娘的单株茎蘖数下降，而在中后期显著增加；UV-B增加对小麦中后期看麦娘的生长有一定的促进效应；看麦娘叶片的叶绿素和类黄酮含量均表现为增加的趋势。在未来紫外线增加的条件下，看麦娘对小麦生产的影响可能会不断增加。
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| 关 键 词： | UV-B 小麦 看麦娘 |
| 文章编号： | 1672-2175(2005)02-0247-03 |
| 修稿时间： | 2004年10月29 |
Effects of enhanced UV-B radiation on Alopecurus japonicus:the weed of wheat field |
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| WANG Chuan-hai,ZHENG You-fei,LIU Wei-jie,YANG Rong-min,WANG Xing.Effects of enhanced UV-B radiation on Alopecurus japonicus:the weed of wheat field[J].Ecology and Environmnet,2005,14(2):247-249. |
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| Authors: | WANG Chuan-hai ZHENG You-fei LIU Wei-jie YANG Rong-min WANG Xing |
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| Institution: | WANG Chuan-hai,ZHENG You-fei,LIU Wei-jie,YANG Rong-min,WANG Xing Department of Environmental Sciences,Nanjing University of Information Science and Technology,Nanjing 210044,China |
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| Abstract: | Effects of enhanced ultraviolet radiation on Alopecurus japonicus were investigated. The result show that under the condi-tion of enhanced UV-B irradiation, the density increased significantly, and the number of tillers per plant decreased at the prophase of wheat, while increase significantly at the metaphase and anaphase of wheat; The growth of Alopecurus japonicus was accelerated at the metaphase and anaphase of wheat; The content of leaf chlorophyll and flavonoid also increased in response to enhanced UV-B irradiation. Under the condition of enhanced UV-B radiation in the near future, the impacts of Alopecurus japonicus to wheat produc-tion would aggrandize along with the increasing UV-B irradiation. |
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| Keywords: | UV-B radiation wheat Alopecurus japonicus |
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