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当前位置: 首页 > 文章 > 几种野生稻提取物对害虫的拒食作用 湖北农业科学 2008,47 (7) 70-72
Position: Home > Articles > Antifeedant Activity of the Extracts of Four Wild Rice Species Aganist Insect Pests Hubei Agricultural Sciences 2008,47 (7) 70-72

几种野生稻提取物对害虫的拒食作用

作  者：
冯国忠;万树青
单  位：
华南农业大学昆虫毒理研究室
关键词：
野生稻;甲醇提取物;小菜蛾;菜粉蝶;非选择性拒食活性
摘  要：
用E6-1、E7-4、E13-13和E16-3 4种野生稻甲醇提取物对小菜蛾2龄幼虫和菜粉蝶5龄幼虫进行了非选择性拒食活性测定。结果表明,小粒野生稻E13-13提取物对小菜蛾2龄幼虫具有较强的拒食作用,叶碟处理后24 h和48 h非选择性拒食率分别为49.30%和46.19%;斑点野生稻E16-3提取物对菜粉蝶5龄幼虫具有较强的拒食作用,叶碟处理后24 h和48 h的非选择性拒食率分别为49.97%和44.77%。
译  名：
Antifeedant Activity of the Extracts of Four Wild Rice Species Aganist Insect Pests
作  者：
FENG Guo-zhong1,2,WAN Shu-qing1 (1.Laboratary of Insect Toxicology,South China Agriculture University,Guangzhou 510642,China; 2.College of Life Science,Chongqing Normal University,Chongqing 400047,China)
关键词：
wild rice;extract;Plutella xylostella;Pieris rapae;non-selective antifeedant activity
摘  要：
Four species of wild rice E6-1,E7-4,E13-13 and E16-3 were extracted by methnol,the extract rates of the four wild rice species were 19.62%,18.9%,24.16% and 13.32% respectively.Non-selective antifeedant activity of the four species of wild rice were tested against the second instar larvae of Plutella xylostella and the 5th instar larvae of Pieris rapae.The results showed that the extract of the wild rice E13-13 against larvae of P.xylostella was better than the others,the non-selective antifeedant rates were 49.30% in 24 h and 46.19% in 48 h after treatment.The extract of the wild rice E16-3 against larvae of P.rapae was better than the others,the non-selective antifeedant rates were 49.97% in 24 h and 44.77%in 48 h after treatment.

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