| 转基因抗虫棉田二代棉铃虫的不完全生命表 |
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| 引用本文： | 郭建英,何华,万方浩,张桂芬,韩召军.转基因抗虫棉田二代棉铃虫的不完全生命表[J].棉花学报,2009,21(1):67-69. |
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| 作者姓名： | 郭建英 何华 万方浩 张桂芬 韩召军 |
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| 作者单位： | 1. 中国农业科学院植物保护研究所,北京,100094
2. 南京农业大学植物保护学院,南京,210095 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 通过罩网和开放式观测相结合的方法，组建了单、双价抗虫棉田二代棉铃虫自然种群的不完全生命表，分析了消长的关键因素。与亲本常规棉相比，单、双价抗虫棉对棉铃虫一龄幼虫均有较好控制作用，Bt蛋白致死效应是抗虫棉田棉铃虫种群消长的关键因素。天敌捕食也是棉铃虫卵和一龄幼虫消亡的重要因素，捕食作用在抗虫棉及其亲本棉田相近。
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| 关 键 词： | 转基因抗虫棉 棉铃虫 生命表 |
Partial Life Tables of Helicoverpa armigera in Transgenic Insect-resistant Cotton Fields |
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| GUO Jian-ying,HE Hua,WAN Fang-hao,ZHANG Gui-fen,HAN Zhao-jun.Partial Life Tables of Helicoverpa armigera in Transgenic Insect-resistant Cotton Fields[J].Cotton Science,2009,21(1):67-69. |
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| Authors: | GUO Jian-ying HE Hua WAN Fang-hao ZHANG Gui-fen HAN Zhao-jun |
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| Institution: | 1.Institute of Plant Protection;Chinese Academy of Agricultural Sciences;Beijing 100094;China;2.Department of Plant Protection;Nanjing Agricultural University;Nanjing 210095;China |
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| Abstract: | By cage experiments,partial life tables of the second generation of Helicoverpa armigera(CBW) in transgenic cotton fields(cvs.SGK 321 and GK 12) were established to evaluate key factors affecting their populations.It showed Bt protein expression in cotton plant was the key factor affecting population dynamics of CBW in GK 12 and SGK 321.Predation ranked the second,and predation efficacy in both transgenic cotton fields had no significant difference to that in their correspongding parental cotton fields. |
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| Keywords: | transgenic insect-resistant cotton Helicoverpa armigera life table |
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