| 印楝素对小菜蛾敏感种群和抗性种群的拒食活性 |
| |
| 引用本文： | 何成兴,尹可锁,郭志祥,罗雁婕,吴文伟.印楝素对小菜蛾敏感种群和抗性种群的拒食活性[J].西南农业学报,2006,19(5):912-915. |
| |
| 作者姓名： | 何成兴 尹可锁 郭志祥 罗雁婕 吴文伟 |
| |
| 作者单位： | 云南省农业科学院农业环境资源研究所农药研究室,云南,昆明,650205 |
| |
| 基金项目： | 云南省“十五”科技攻关项目（2001NC09）;云南省技术创新人才培引项目（2001PY020）. |
| |
| 摘 要： | 用叶片浸渍法测定了印楝素(Azadirachtin)对小菜蛾抗性及敏感种群拒食活性。实验结果表明,印楝素对田间抗性及敏感小菜蛾种群均具有较好的拒食作用,且拒食活性随其的浓度的增加而显著增强;相对于抗性种群,印楝素对小菜蛾敏感种群表现了更强的拒食活性,其抗性种群拒食中浓度AFC50(1.2591 mg/L)是敏感种群AFC50(0.2567 mg/L)的4.91倍。
|
| 关 键 词： | 小菜蛾 印楝素(Azadirachtin) 抗性及敏感种群 拒食活性 |
| 文章编号： | 1001-4829（2006）05-0912-04 |
| 收稿时间： | 2005-12-02 |
| 修稿时间： | 2005-12-02 |
Anti-feeding activity of Azadirachtin to susceptible and resistant population of Plutella xylostella |
| |
| HE Cheng-xing,YIN Ke-suo,GUO Zhi-xiang,LUO Yan-jie,WU Wen-wei.Anti-feeding activity of Azadirachtin to susceptible and resistant population of Plutella xylostella[J].Southwest China Journal of Agricultural Sciences,2006,19(5):912-915. |
| |
| Authors: | HE Cheng-xing YIN Ke-suo GUO Zhi-xiang LUO Yan-jie WU Wen-wei |
| |
| Institution: | Insititute of Agricultural Environment and Resource, Yunnan Academy of Agriculture Sciences, Yunnan Kunming 650205, China |
| |
| Abstract: | The anti-feeding activity of Azadirachtin to susceptible and resistant population of Plutella xylostella were determined by applying the method of leaves-tip bioassays.The results showed that the anti-feeding activity to two populations increased significantly with the increase of Azadirachtin'sconcentration.The susceptible population was more susceptible to the effect of Azadirachtin than the resistant population.Its AFC_(50)(0.2567 mg/L)was significantly lower than that of resistant population.The anti-feeding toxicity of Azadirachtin to resistant population was 4.91 times of susceptible population of Plutella xylostella. |
| |
| Keywords: | Plutella xylostella Azadirachtin susceptible and resistant population anti-feeding activity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
