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转基因棉田棉蚜种群动态及相关影响因子分析
引用本文:杨益众,陆宴辉,薛文杰,刘洋,杨海燕,李晓慧,王峰,余月书.转基因棉田棉蚜种群动态及相关影响因子分析[J].昆虫学报,2006,49(1):80-85.
作者姓名:杨益众  陆宴辉  薛文杰  刘洋  杨海燕  李晓慧  王峰  余月书
作者单位:扬州大学农学院植物保护系
摘    要:以3个转基因棉花品种和2个对照棉花品种为研究材料,在棉花苗期组建了棉蚜连续3个世代的自然种群生命表。结果表明:3个转基因棉花品种田棉蚜的种群趋势指数在第1代和第2代均高于对照,第3代则略低于对照;从连续3个世代的棉蚜种群累积增长趋势指数分析,转基因棉“国抗22”上的种群累积增长指数为5.40,比对照“泗棉3号”上的高1.21%,转基因棉“苏抗103”和“中抗310”上的种群累积增长指数较对照“苏棉12”上的也分别增加49.54%和65.79%。比较各作用因子的控制指数,发现3个转基因棉花品种田寄生性天敌的控制指数大多数小于各自的对照棉田,而天敌捕食等其他一些作用因子的控制指数在常规对照棉田与转基因棉花品种间差异不大。

关 键 词:转基因棉  棉蚜  种群动态  自然种群  生命表  作用因子  
文章编号:0454-6296(2006)01-0080-06
修稿时间:2005年7月1日

Population dynamics of Aphis gossypii Glover in transgenic cotton fields and an analysis of the related influencing factors
YANG Yi-Zhong,LU Yan-Hui,XUE Wen-Jie,LIU Yang,YANG Hai-Yan,LI Xiao-Hui,WANG Feng,YU Yue-Shu.Population dynamics of Aphis gossypii Glover in transgenic cotton fields and an analysis of the related influencing factors[J].Acta Entomologica Sinica,2006,49(1):80-85.
Authors:YANG Yi-Zhong  LU Yan-Hui  XUE Wen-Jie  LIU Yang  YANG Hai-Yan  LI Xiao-Hui  WANG Feng  YU Yue-Shu
Institution:Yangzhou University
Abstract:In order to study the population dynamics of Aphis gossypii in the transgenic cotton fields and to analyze the related influencing factors, we constructed the life tables of natural populations of A. gossypii across three continuous generations on three transgenic cotton cultivars and their two parental lines as the controls in Yangzhou City, Jiangsu Province in 2003. The results showed the population trend index (I) of A. gossypii in three transgenic cotton fields was higher than that of the non-transgenic conventional cottons in the first and second generation, but slightly lower than that of the control in the third generation of A. gossypii. The population trend index of three continuous populations on the transgenic cotton “Guokang 22" was 5.40, 41.21% higher than that on its control “Simian 3"; and the population trend indexes of three continuous populations on the transgenic cotton “Sukang 103" and “Zhongkang 310" were 49.54% and 65.79% higher than that on their control “Sumian 12" respectively. By analyzing the index of population control (IPC), we found that the control index of parasitism in the transgenic cotton fields was smaller than in the non-transgenic conventional cottons in most time, but there was almost no difference in the IPCs of predation and other influencing factors between three transgenic cotton cultivars and two non-transgenic conventional cottons.
Keywords:Transgenic cotton  Aphis gossypii  population dynamics  natural population  life table  influencing factors
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