| 20种植物提取物对南方根结线虫的毒杀活性 |
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| 引用本文： | 孙世伟,刘爱勤,苟亚峰,桑利伟,邬华松.20种植物提取物对南方根结线虫的毒杀活性[J].热带农业科学,2009,29(10):30-33. |
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| 作者姓名： | 孙世伟 刘爱勤 苟亚峰 桑利伟 邬华松 |
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| 作者单位： | 1. 中国热带农业科学院香料饮料研究所,海南万宁,571533
2. 中国热带农业科学院香料饮料研究所,海南万宁,571533;国家重要热带作物工程技术研究中心,海南儋州,571737 |
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| 基金项目： | 国家科技支撑计划项目子课题 |
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| 摘 要： | 采用浸渍法测定13科20种植物乙醇提取物对南方根结线虫的毒杀活性。结果表明：酸豆、牛角瓜、番荔枝、苦楝乙醇提取物以10mg／mL处理后24h，供试2龄线虫校正死亡率分别为82．13％、85．71％、89．28％、89．28％，处理后48h，校正死亡率分别为89．01％、96．34％、92．67％和96．34％，均具有强杀线虫活性；毒力测定结果表明：处理后24h和48h，4种提取物的LC50由小到大顺序为：酸豆〈牛角瓜〈番荔枝〈苦楝。
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| 关 键 词： | 提取物 南方根结线虫 杀线活性 |
Nematocidal Activity of Plant Extracts Against Root-knot Nematode (Meloidogyne incognita) |
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| SUN Shiwei,LIU Aiqin,GOU Yafeng,SANG Liwei,WU Huasong.Nematocidal Activity of Plant Extracts Against Root-knot Nematode (Meloidogyne incognita)[J].Chinese Journal of Tropical Agriculture,2009,29(10):30-33. |
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| Authors: | SUN Shiwei LIU Aiqin GOU Yafeng SANG Liwei WU Huasong |
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| Institution: | SUN Shiwei, LIU Aiqin, GOU Yafeng, SANG Liwei, WU Huasong(1. Research Institute of Spice and Beverage Crops, CATAS, Wanning, Hainan 571533; 2. State Engineering Technology Research Center for Important Tropical Crops, Danzhou, Hainan 571737) |
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| Abstract: | Plants of 20 species under 13 families were extracted with ethanol to determine their nematocidal activities against root-knot nematode （Meloidogyne incognita） by dipping bioassay. The results showed that the ethanol extracts from Tarnarindus indica L., Calotropis giganteon （L.） Dryand., Anona squamosa L., Melia azedarach L. possessed strong nematocidal activity and caused respective corrected mortalities of 82.13%, 85.71%, 89.28 and 89. 28% after 24 h treatment, and of 89.01%, 96.34%, 92.67% and 96.34% after 48 h treatment at the concentration of 10 000 μg/mL against second instar larvae of the root-knot nematode. Toxicity analysis demonstrated that the LC50 values of the 4 extracts after 24 and 48 hours of treatment varied in the descending order of T. indica L.〈C. gigantean （L.） Dryand.〈A.squamosa L.〈Melia azedarach L. |
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| Keywords: | extracts Meloidogyne incognita nematocidal activity |
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