应用生态学报2011，Vol.22Issue(11)：3021-3025,5.
广西兴安转Bt水稻大田两迁害虫发生动态
Occurrence dynamics of migratory pest insects Cnaphalocrocis medinalis and Sogatella furcifera in transgenic Bt rice field in Xing' an County of Guangxi Province
摘要
Abstract
An investigation was conducted in Xing' an County of Guangxi Province in 2010 to study the occurrence and damage characteristics of two unique migratory pest insects, rice leaffolder ( Cnaphalocrocis medinalis) and white-backed planthopper (Sogatella furcifera) , in a transgenic Bt rice (cv. HH1 with dual CrylAb + CrylAc genes) field, taking the corresponding non-transgenic parent (cv. MH63) field as the control. No significant differences were observed in the abundance of C. Medinalis eggs and larvae in the two fields, but the percentage of fold-leaf plants and the fold-leaf rate per plant were significantly lower in transgenic Bt rice field than in the control, suggesting that transgenic Bt rice had higher resistance against the target pest insect C. Medinalis. As for 5. Furcifera, its occurrence dynamics of nymphs, adults (including macro- and brachypterous forms) , and whole population had no significant differences between the two fields, but the abundance of the nymphs and brachypterous adults at the peak stage of S. Furcifera occurrence was obviously higher in transgenic Bt rice field than in the control, while the macropterous abundance was in adverse. The sex ratio of female of the macropterous adults at the late growth stage of rice was generally lower in transgenic Bt rice field than in the control. These results suggested that under the background of large area commercial production of transgenic Bt rice, the occurrence and harm of the non-target pest insect S. Furcifera could become more complicated.关键词
转Bt水稻/稻纵卷叶螟/白背飞虱/发生动态Key words
transgenic Bt rice/Cnaphalocrocis medinalis/Sogatella furcifera/occurrence dynamics.分类
农业科技引用本文复制引用
隋贺,李志毅,徐艳博,韩超,韩兰芝,陈法军..广西兴安转Bt水稻大田两迁害虫发生动态[J].应用生态学报,2011,22(11):3021-3025,5.基金项目
国家重点基础研究发展计划项目(2010CB126200)、国家公益性行业(农业)科研专项(200903051)、转基因生物新品种培育重大专项(2009ZX08011-007B.2009ZX08012-005B,2011 ZX08012-005)和教育部霍英东基金“全球气候变化下转Bt作物氮肥优化管理及其害虫控制技术研究”项目(122033)资助. （2010CB126200）
