| 异恶草酮对三叶浮萍的毒性研究 |
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| 引用本文： | 何文,郭正元,贺仲兵.异恶草酮对三叶浮萍的毒性研究[J].贵州农业科学,2006,34(1):71-73. |
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| 作者姓名： | 何文 郭正元 贺仲兵 |
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| 作者单位： | 湖南农业大学,环境科学系,长沙,410128 |
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| 摘 要： | 以三叶浮萍为对象,研究了异恶草酮对其生长及体内色素的影响作用。结果表明:异恶草酮对浮萍生长抑制的24 hIC50为8.86 mg/L4、8 h IC50为5.21 mg/L7、2 h IC50为1.92 mg/L、96 h IC50为1.66 mg/L,对浮萍体内叶色素的影响作用呈良好的浓度(剂量)-效应关系,随着处理浓度的增大,浮萍体内的叶绿素和胡萝卜素含量明显减少,且叶绿素a/b值也随处理浓度的增大而减小。
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| 关 键 词： | 异恶草酮 三叶浮萍 毒性 |
| 文章编号： | 1001-3600（2006）01-0025-0071-02 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2005-12-16 |
Toxicity Effects of Clomazone on Lemna minor |
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| HE Wen,GUO Zheng-yuan,HE Zhong-bing.Toxicity Effects of Clomazone on Lemna minor[J].Guizhou Agricultural Sciences,2006,34(1):71-73. |
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| Authors: | HE Wen GUO Zheng-yuan HE Zhong-bing |
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| Institution: | Department of Environment Science, Hunan Agricultural University, Changsha 410128, China |
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| Abstract: | The experiment was conducted to investigate effects of clomazone on the growth of Lemna minor and its pigment.The results indicated that the IC_(50)of 24h,48h,72h and 96h clomazone treatments were 8.86mg/L,5.21mg/L,1.92mg/L and(1.66mg/L) respectively.The contents of chlorophyll and carotene in Lemna minor obviously decreased with the clomazone increase and the value of chlorophyll a/b decreased with the clomazone increase. |
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| Keywords: | clomazone Lemna minor toxicity |
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