摘要
以转Ｂｔ（Ｂａｃｉｌｕｓｔｈｕｒｉｎｇｉｅｎｓｉｓ）基因棉品系Ｒ９３－４为试验材料，以常规棉品种中棉所１２为对照，研究了转Ｂｔ基因棉对棉铃虫生长发育与繁殖的影响。结果表明：１～４龄棉铃虫幼虫连续取食转基因棉最终不能存活，５龄和６龄幼虫的存活率分别为３７９％～８５６％和６３４％～９６５％；５龄棉铃虫幼虫取食转基因棉后，体重和蛹重分别减轻１８７％～５７２％和３５％～３６２％，化蛹率和羽化率分别降低４８２％～８７５％和６６７％～１００％，产卵量和卵孵化率分别降低５０１％～６９７％和８０６％～８７８％；取食转基因棉的花粉后。
During 1996—1997, the effects of the transgenic Bt cotton on the growth and development and reproduction were studied using transgenic R93-4 and CCRI 12. The results showed that Bt cotton effected the development and reproduction of cotton bollworm obviously, such as feeding the Bt cotton continuously, all the first to fourth instar larvae could not live, the weight of the fifth instar larvae decreased by 18.7%～57 2%, the ratio of pupating decreased by 48.2%～87.5%, the weight of pupae decreased by 3.5%～36.2%, the ratio of emerging decreased by 66.7%～100%, the number of eggs decreased by 50.1%～69.7%, the ratio of hatching decreased by 80.6%～87.8%, compared with the conventional cotton. Feeding the moths with the fower of Bt cotton, the number of eggs and the hatching rate decreased by 59.8% and 72.1% respectively.
出处
《河南农业大学学报》
CAS
CSCD
1999年第1期20-24,共5页
Journal of Henan Agricultural University
基金
国家"九五"攻关项目
关键词
转BT基因棉
棉铃虫
生长发育
繁殖
transgenic Bt cotton
cotton bollworm
development
reproduction
