| 蟛蜞菊化感作用的初步研究 |
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| 引用本文： | 刘念江,吴莉宇,吴声敢. 蟛蜞菊化感作用的初步研究[J]. 热带农业科学, 2006, 26(6): 24-25,29 |
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| 作者姓名： | 刘念江 吴莉宇 吴声敢 |
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| 作者单位： | 中国热带农业科学院分析测试中心,海南海口,571101;华南热带农业大学环境与植物保护学院,海南儋州,571737;中国热带农业科学院分析测试中心,海南海口,571101;农业部农产品质量监督检测中心(杭州),浙江杭州,310021 |
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| 摘 要： | 以蟛蜞菊[Wedelia chinensis(Osbeck) Merrill]地上部分的二氯甲烷提取物为化感物质,初步研究了蟛蜞菊对萝卜种子萌发和稗草幼苗生长的化感作用。结果表明:蟛蜞菊对萝卜的种子萌发和对稗草的幼苗生长均有抑制作用,随着化感物质浓度的增大抑制作用增强;且蟛蜞菊对稗草根生长的抑制作用强于对芽的。
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| 关 键 词： | 化感作用 他感作用 蟛蜞菊 |
| 收稿时间： | 2006-06-02 |
| 修稿时间： | 2006-06-02 |
Preliminary Study on Allelopathic Effects of Wedelia chinensis (Osbeck) Merrill |
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| LIU Nianjiang,WU Liyu,WU Shenggan. Preliminary Study on Allelopathic Effects of Wedelia chinensis (Osbeck) Merrill[J]. Chinese Journal of Tropical Agriculture, 2006, 26(6): 24-25,29 |
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| Authors: | LIU Nianjiang WU Liyu WU Shenggan |
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| Affiliation: | 1 Analyzes and Test Center, CATAS, Haikou 571101; 2 College of Environment and Plant Protect, SCUTA, Danzhou, Hainan 571737; 3 Ministry of Agriculture Agricultural Products Quality Supervision and Test Center, Hangzhou 310021 |
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| Abstract: | Aerial parts of Wedelia chinensis (Osbeck) Merrill were extracted with methylene chloride, and the extract was used as allelopathic substance to analyze its effects on the seed germination of radish and seedling growth of Echinochloa crusgalli (Linnaeus) Beauvois. W. chinensis was found to inhibit the germination of radish seeds and the growth of young barnyard grass seedlings, and the inhibitory action increased with the concentration of the allelopathic substance. W. chinensis showed higher inhibitory action to the growth than to the germination of barnyard grass. |
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| Keywords: | Wedelia chinensis (Osbeck) Merr. allelopathic effect |
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