新疆棉区转基因抗虫棉对棉铃虫的毒杀效果  

Effect on the Insecticidal Activity of Bt Transgenic Cotton to Ball Worm in Xinjiang

作　　者：刘东辉 汪飞[2] 宋荣[2] 孙世龙 李祥晔 

机构地区：[1]湖南生物与机电工程职业技术学院植物科技系,湖南长沙410127 [2]新疆农科院植保所,新疆乌鲁木齐830000 [3]新疆莎车县农技中心,新疆莎车844700

出　　处：《新疆农业科学》2003年第1期36-37,共2页Xinjiang Agricultural Sciences

基　　金：国家农业部

摘　　要：用室内生测法研究分析了转基因抗虫棉不同生育期、不同组织器官对棉铃虫 1日龄幼虫的毒杀效果。结果表明 :抗虫棉花不同发育阶段 ,对棉铃虫幼虫的杀虫活性存在明显的时间差异 ,总的趋势是前强后弱。抗虫棉花不同组织器官对棉铃虫幼虫的毒杀效果具有空间上的差异 ,蕾和苞叶毒杀效果最强 ,花蕊毒杀效果最弱。抗虫棉花对棉铃虫幼虫具有较强的控制作用 ,幼虫很难存活至化蛹。In this paper, we studied and analysed the insecticidal activity of different growth periods, different tissues of Bt transgenic cotton. With first larva of bollworm by plant a bioassays, results showed, there was significant diversity of the insecticidal activity in different growing phase of Bt cotton, it is higher insecticidal activity in prophase than in anaphase. Morever, the trend of various tissues is different, insecticidal activity of bud and bracteal leaf is the highest, and the petal is the lowest in various tissues Bt transgenic cotton restrained Stuongly the development of bollworm, and it is difficulty for younger larva to develop to pupa period.

关 键 词：新疆棉区 转基因抗虫棉 棉铃虫 毒杀效果 室内生测法 

分 类 号：S435.622.3[农业科学—农业昆虫与害虫防治]