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当前位置: 首页 > 文章 > 转Bt基因棉对棉铃虫田间抗性效果分析 吉林农业大学学报 2007,29 (4) 371-374
Position: Home > Articles > Resistance Effects of Transgenic Bt Cotton on Helicoverpa armigera in the Cotton Fields Journal of Jilin Agricultural University 2007,29 (4) 371-374

转Bt基因棉对棉铃虫田间抗性效果分析

作  者：
孟昭军;文明寿;张帆;孙庆田;刘佳;王春一
单  位：
吉林农业大学科技师范学院;吉林农业大学农学院;吉林市农业技术推广中心;北京市农林科学院植保环保所
关键词：
转Bt基因棉;棉铃虫;抗性
摘  要：
研究了转Bt基因棉对棉铃虫的田间抗性效果。结果表明:转Bt基因棉GK田、综防田、化防田各代棉铃虫幼虫残虫量比对照田减少81.82%～100.00%,差异极显著。棉花各器官的被害率均明显降低,与对照田相比,2代棉铃虫发生期棉蕾、棉叶被害率减少92.30%～100.00%,差异极显著,3,4代棉铃虫发生期成铃、幼铃、蕾、花被害率减少35.43%～100.00%,差异显著、极显著。田间转Bt基因棉对棉铃虫抗性为2代>4代>3代。但3,4代棉铃虫发生期田间幼虫残留量增加,棉花各器官被害率增大,因此还需适时防治棉铃虫。
译  名：
Resistance Effects of Transgenic Bt Cotton on Helicoverpa armigera in the Cotton Fields
作  者：
MENG Zhao-jun~(1,2) WEN Ming-shou~3 ZHANG Fan~1 SUN Qing-tian~4 LIU Jia~2 WANG Chun-yi~2 (1.Institute of Plant and Environment Protection,Beijing Academy of Sciences of Agriculture and Forestry,Beijing 100089,China; 2.College of Agronomy,Jilin Agricultural University,Changchun 130118,China; 3.Popularization Center of Agricultural Technology of Jilin City,Jilin 132011,China; 4.Normal College of Science and Technology,Jilin Agricultural University,Changchun 130118,China)
关键词：
transgenic Bt cotton;;Helicoverpa armigera;;resistance
摘  要：
The effects of transgenic Bt cotton on resisting Helicoverpa armigera were studied.The results showed that compared with routine cotton fields,numbers of the survival larvae of every generation de- creased by 81.82%—100.00%,and the difference was obviously significant.The damage rate of buds and leaves of cotton decreased by 92.30%—100.00% in the 2nd generation,and the difference was sig- nificant;the damage rate of mature bolls,young bolls,buds and flowers of cotton reduced by 35.43%—100.00% in the 3rd and 4th generations,and the differences were significant and obviously significant, respectively.The resistance of transgenic Bt cotton to Helicoverpa armigera is the 2nd generation>the 3rd generation>the 4th generation in transgenic Bt cotton fields.But the numbers of the survival larvae of the 3rd and the 4th generations H.armigera increased in the cotton fields.Then the damage rate of the cotton organs increased.So we must control H.armigera in time.

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