| Bt棉花对棉铃虫幼虫选择性行为的影响 |
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| 引用本文： | 余月书,杨益众,印毅,邵益栋,康晓霞.Bt棉花对棉铃虫幼虫选择性行为的影响[J].昆虫知识,2003,40(5):423-425. |
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| 作者姓名： | 余月书 杨益众 印毅 邵益栋 康晓霞 |
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| 作者单位： | 扬州大学农学院,扬州,225009 |
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| 基金项目： | 苏省教育厅科研基金项目 (H9914 90 ) |
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| 摘 要： | 利用“H”型嗅觉仪测定结果表明 :在棉花蕾期、花铃期 ,棉铃虫 2龄幼虫对常规棉的棉叶、嫩头的选择性明显高于转基因棉花品种 ,差异达显著或极显著水平。但 3龄幼虫对两者的选择性差异并不显著 ;而在棉花蕾期 ,果枝对棉铃虫 2龄幼虫选择性行为有一定的影响。试验初步说明Bt棉对棉铃虫低龄幼虫有一定的忌避作用 ,而对高龄幼虫忌避效应不显著。
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| 关 键 词： | Bt棉 棉铃虫 忌避效应 |
| 修稿时间： | 2002年12月9日 |
Impacts of Bt cotton on host selection behavior of Helicoverpa armigera larvae |
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| YU Yue-Shu,YANG Yi-Zhong,YIN Yi,SHAO Yi-Dong,KANG Xiao-Xia.Impacts of Bt cotton on host selection behavior of Helicoverpa armigera larvae[J].Entomological Knowledge,2003,40(5):423-425. |
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| Authors: | YU Yue-Shu YANG Yi-Zhong YIN Yi SHAO Yi-Dong KANG Xiao-Xia |
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| Abstract: | The behavioral response of larvae of the cotton bollworm to the transgenic-Bt cotton and non-transgenic cotton was measured using an “H" olfactometer. The results show that the repellence of transgenic-Bt cotton to 2nd instar larvae was stronger than non-transgenic cotton during the cotton bolls stage and the cotton buds stage, but this difference was not significant when 3rd instar larvae were tested. |
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| Keywords: | Bt cotton cotton bollworm repellence |
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