棉花学报2002，Vol.14Issue(2)：117-120,4.
抗性棉铃虫在转基因棉花上某些生命参数的研究
Changes of Some Life Parameters in the Resistant Bollworm[Helicoverpa armigera (Hübner)] Fed on Bt Transgenic Cotton
摘要
Abstract
The responses of two populations of cotton bollworm [Helicoverpa armigera(Hubner)]with low resistance and suscepti\bility respectively to Bt(Gene CrylAc of Bacillus thuringiensis Berliner)transgenic cotton (Gossypium hirsutum L.)were tested and compared in laboratory.As fed on nontransgenci cotton leaves,except the lower fecundity in resistant population,all the larval survival,duration and pupal weight of both populations were similar.While fed on transgenic cotton leaves collected in late June,July and August,the survival of ten days old larvae fed in late July and August and pupation rate of the larvae fed in late August in resistant population were highter than those in susceptible population,but the development of larval survivors was significantly slower and pupal weight was significantly lower than those fed on non-transgenic cotton leaves.No pupation of larvae fed in late June was found both in resistant and susceptilble population.It was indicated that,the resistant cotton bollworm has increased its adaptation to Bt transgenic cotton,but by such low resistance ,it still cannot grow and develop normally like that feeding on nontransgenic cotton.关键词
棉铃虫/转Bt基因棉花/抗性Key words
Helicoverpa armigera/Bt transgenic cotton/resistance分类
农业科技引用本文复制引用
卢美光,芮昌辉..抗性棉铃虫在转基因棉花上某些生命参数的研究[J].棉花学报,2002,14(2):117-120,4.基金项目
This research was funded by the China National High-Tech program ("863" item Z17-04-02) （"863" item Z17-04-02）
