| 曾维爱1,2,3;谭济才1;张春艳1;谭琳1;陈建芝1;李先文1;李密1.水蓼杀虫活性成分的提取与活性[J].植物保护,2007,33(1):59-61. |
| 水蓼杀虫活性成分的提取与活性 |
| Extraction and separation of the active ingredients from Polygonum hydropiper |
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| DOI： |
| 中文关键词: 水蓼 提取物 菜青虫 生物活性 |
| 英文关键词:Polygonum hydropiper L. extract Pieris rapae L. bioactivity. |
| 基金项目: |
| 曾维爱1 2 3;谭济才1;张春艳1;谭琳1;陈建芝1;李先文1;李密1 |
| 1.湖南农业大学生物安全科技学院 长沙 410128;2.湖南农业大学生物安全科技学院 长沙410128;3.湖南农业大学园艺园林学院 长沙410128 |
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| 中文摘要: |
| 采用回流提取、萃取等方法,以菜青虫5龄幼虫为试虫,经生物活性测定表明,水蓼95%乙醇粗提物的不同溶剂萃取物对菜青虫具有很强的拒食活性和一定的触杀作用。其中,乙醚萃取物的拒食活性和触杀作用最强。 |
| 英文摘要: |
| Two extraction methods and four solvents were selected to obtain extracts from the whole plant of Polygonum hydropiper L.by reflux extraction.The bioactivity of the extracts against the 5th instar larvae of Pieris rapae L.was investigated.The results showed that the extracted by different solvents had high antifeeding effects and contact toxicity against Pieris rapae L.In these extracts,the ether extract of PHEE had the strongest biological activity. |
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