| 野西瓜苗不同部位提取物对小菜蛾的活性作用方式研究 |
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| 引用本文： | 左玲霞,谢晓鹏,杨敏丽. 野西瓜苗不同部位提取物对小菜蛾的活性作用方式研究[J]. 河南农业科学, 2010, 0(12) |
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| 作者姓名： | 左玲霞 谢晓鹏 杨敏丽 |
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| 作者单位： | 银川科技职业学院,宁夏,银川,750105;宁夏育才中学,宁夏,银川,756500;宁夏大学,能源化工重点实验室,宁夏,银川,750021 |
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| 基金项目： | 国家自然科学基金,宁夏自然科学基金 |
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| 摘 要： | 采用不同的活性测试方法,研究了野西瓜苗不同部位乙醇提取物对小菜蛾的触杀、拒食和抑制生长发育的作用。结果表明:野西瓜苗不同部位乙醇提取物对小菜蛾具有较为明显的触杀、拒食和抑制生长发育作用,触杀活性:籽>茎>根>叶;拒食活性:籽>茎>叶>根;抑制生长发育活性:籽>茎>叶>根。在4个部位中,籽提取物的活性最强,当处理剂量为12.5 g/L时,小菜蛾72 h的校正死亡率达到86.67%,48 h的拒食率达85.94%,48 h的生长发育抑制率达79.05%。
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| 关 键 词： | 野西瓜苗 不同部位 小菜蛾 活性作用方式 |
Study on Action Mode of the Different Parts of Hibiscus trionum L.against Plutella xylostella |
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| ZUO Ling-xia,XIE Xiao-peng,YANG Min-li. Study on Action Mode of the Different Parts of Hibiscus trionum L.against Plutella xylostella[J]. Journal of Henan Agricultural Sciences, 2010, 0(12) |
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| Authors: | ZUO Ling-xia XIE Xiao-peng YANG Min-li |
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| Abstract: | The different parts of wild watermelon seedling(Hibiscus trionum L.) were selected to study contacting,anti-feeding and inhibition of growth and development of 3th instar larvae of Plutella xylostella.The results showed that ethanol extract possessed high contacting,anti-feeding and inhibition of growth and development.The contacting activity was seed>stem>root>leaf;anti-feeding activity was seed>stem>leaf>root;inhibition activity of growth anddevelopment was seed>stem>leaf>root.In the four parts of Hibiscus trionum L.,seed activity was the strongest.When Plutella xylsteua was treated with concentration of 12.50g/L,the corrected mortality rate for 72h was 86.67%,the anti-feeding rate for 48h was 85.94%,and growth inhibition rate for 48h was 79.05%. |
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| Keywords: | Hibiscus trionum L. Different parts Plutella xylostella Action mode |
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