转Bt基因抗虫棉对棉铃虫的抗性分析  

Insect-resistance of Transgenic Bt Cotton against Helicoverpa armigera

作　　者：李晶晶[1] 曹振军 张建萍[1] 黄艳勤[1] 王春娟[1] 杨德松[1] 

机构地区：[1]石河子大学农学院/新疆绿洲农业病虫害治理与植保资源利用自治区普通高校重点实验室,新疆石河子832000 [2]安吉县园林绿化管理处,浙江安吉313300

出　　处：《湖北农业科学》2014年第7期1567-1569,共3页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(31101487)

摘　　要：用常规棉和不同品种的转Bt基因抗虫棉分别饲喂棉铃虫（Helicoverpa armigera），对棉铃虫幼虫生长发育过程中各生物学指标的变化进行室内观察分析。结果表明，不同品种的转Bt基因抗虫棉之间对棉铃虫幼虫体重和死亡率的影响程度由大到小依次为JK-1、DB、D16、新陆早36，另外，取食转Bt基因抗虫棉叶片之后棉铃虫幼虫的化蛹率比取食常规棉叶片的棉铃虫幼虫的化蛹率减少12.5%~30.0%，蛹重减轻15.6%~41.9%，羽化率降低5.5%~80.0%。Indoor observations and analysis of different biological indicators of Helicoverpa armigera fed on conventional cotton and different varieties of Bt transgenic cotton during their growth and development were conducted.The results showed the im-pacts of transgenic Bt cotton on body weight and mortality of Helicoverpa armigera larva of different varieties were JK-1〉DB〉 D16〉 Xinluzao 36. Compared with the control group, the pupation rate of larva fed on transgenic Bt cotton leaves, was reduced by 12.5%~30.0%, weight of pupation was decreased by 15.6%~41.9% and the emergence rate dropped by 5.5%~80%.

关 键 词：转BT基因 抗虫棉 棉铃虫(Helicoverpa armigera) 抗虫性 

分 类 号：S435.622[农业科学—农业昆虫与害虫防治] Q943.2[农业科学—植物保护]