干旱区研究

干旱区研究 ›› 2013, Vol. 30 ›› Issue (3): 520-526.

• 生物资源 • 上一篇    下一篇

新疆南部转基因棉区棉铃虫种群长期动态研究

 张娟1,2, 马吉宏1, 芦屹3, 王佩玲4, 李贤超5, 吕昭智1   

  1. 1. 中国科学院新疆生态与地理研究所，中国科学院干旱区生物地理与生物资源重点实验室, 新疆 乌鲁木齐 830011;
    2. 中国科学院研究生院, 北京 100049; 3. 新疆维吾尔自治区植物保护站, 新疆 乌鲁木齐 830006; 
    4. 石河子大学农学院植保系昆虫教研室, 新疆 石河子 832003; 
    5. 新疆生产建设兵团农业技术推广总站, 新疆 乌鲁木齐 830011
  • 收稿日期:2012-05-03 修回日期:2012-07-16 出版日期:2013-05-15 发布日期:2013-05-16
  • 作者简介:张娟（1986-），女，在读硕士，研究方向为动物生态学.E-mail： zhangjuan0129@163.com
  • 基金资助:

    院地合作专项（XBXJ-2011-029）和国家国际科技合作专项（2011DFA33170）共同资助

Long-term Dynamic Change of Helicoverpa armigera (Hübner) Population in Bt Cotton-growing Areas in South Xinjiang

 ZHANG  Juan1,2, MA  Ji-Hong1, LU  Yi3, WANG  Pei-Ling4, LI  Xian-Chao5, Lv Zhao-Zhi1   

  1. 1. Key Laboratory of Biogeography and Bioresources in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy 
    of Sciences, Urumqi 830011, China; 2. Graduate University, Chinese Academy of Sciences, Beijing 100049. China;
    3. Xinjiang Station for Plant Protection, Urumqi 830006, China; 
    4.  Department of Plant Protection, College of Agriculture, Shihezi University, Shihezi 832003, Xinjiang, China;
    5. Agricultural Technology Promotion Station, Xinjiang Corps of Production and Construction, Urumqi 830011, China
  • Received:2012-05-03 Revised:2012-07-16 Published:2013-05-15 Online:2013-05-16

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被引次数

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摘要： （Bacillus thuringiensis）基因抗虫棉在新疆南部推广已超过10 a，为探索Bt棉大面积种植对棉铃虫（Helicoverpa armigera）种群动态的影响，于1999—2010年使用诱虫灯监测了Bt棉大面积种植区域（麦盖提）和非Bt棉大面积种植区域（阿瓦提）棉铃虫的种群动态。结果表明：新疆南部地区20世纪90年代末发生棉铃虫害较重，2000—2004年种群数量保持较高水平；自2005年Bt棉大面积推广以后，Bt棉区棉铃虫的种群数量显著下降，棉铃虫种群数量随Bt棉种植比例的上升而下降（P<0.05）;]随着Bt棉大面积推广年数的增加，Bt棉区棉铃虫各代种群数量均逐渐下降，第二代种群数量和高峰期蛾量下降速率均较越冬代和第一代快，且第二代棉铃虫种群相对丰富度也逐渐下降。因此，新疆地区Bt棉的大面积种植能较好地控制棉铃虫的种群数量，而且对第二代棉铃虫种群的控制效果最好。

关键词: 棉铃虫（Helicoverpa armigera）, 种群动态, 灯光诱集, 转基因抗虫棉, 新疆

Abstract: Transgenic cotton has been engineered to produce insecticidal toxins from [WTBX]Bacillus thuringiensis (Bt) to resist cotton bollworms, [WTBX]Helicoverpa armigera (Hübner) has been commercially cultivated in China since 1997, and it has been intensively planted in Xinjiang fore more than 10 years, where cotton was cultivated in large area, and the crop systems were quite different from other areas. Therefore, it was suspected that the current results about the impact of Bt cotton planting on the seasonal population patterns of cotton bollworms may not reflect the actual situation in Xinjiang. The monitoring of cotton bollworms with light trapping was carried out in a high Bt density region in Markit County and in a low Bt density region in Awat County, Xinjiang during the period from 1999 to 2010. The analyzed results indicated that the population size of cotton bollworms was decreased only in the high Bt density region, but the change in the low Bt density region was not significant. There was a significant negative correlation between the percentage of Bt cotton planting and the light-trapped H. armigera moths. The population size of H. armigera moths of all three generations was decreased with the time of planting Bt cotton, the population size and light-trapped moths of the second generation were dramatically decreased compared with those of the overwinter and first generations, and the relative abundance of the second generation was also decreased gradually. These results demonstrated that cotton bollworm population was suppressed by high Bt density cultivation at present, especially for the second generation.

Key words: Helicoverpa armigera, dynamic change of population, light trapping, Bt cotton, Xinjiang