转双价基因棉对棉田主要寄生性天敌生长发育的影响  

Effects of Transgenic Cry1Ac Plus CpTI Cotton on Development of Main Parasitoids in Laboratory

作　　者：崔金杰[1] 雒珺瑜[1] 王春义[1] 李树红[1] 李春花[1] 

机构地区：[1]中国农业科学院棉花研究所

出　　处：《棉花学报》2005年第1期37-41,共5页Cotton Science

基　　金：国家十五攻关项目(2001BA509B05);政府间国际合作项目(2003DF000013);国家863项目(2001AA21227)

摘　　要：研究了转双价基因棉对棉田主要寄生性天敌棉蚜茧蜂、棉铃虫寄生蜂侧沟茧蜂和齿唇姬蜂生长发育的影响。结果表明 :从转双价基因棉田、Bt棉田和常规棉田采集的棉蚜僵蚜的羽化率三者间均无明显差异 ,转双价基因棉田和Bt棉田棉蚜茧蜂的蜂重差异达显著水平 ,与常规棉田相比均无明显差异 ;常规棉田的棉蚜茧蜂寄生取食转双价基因棉、Bt棉和常规棉的棉蚜后的蜂羽化率、出蜂时间及蜂重均没有明显差异 ,在寄生数量上除Bt棉与常规棉处理差异达显著水平外 ,其它处理间差异不明显 ;转双价基因棉田的棉蚜茧蜂对取食转双价基因棉的棉蚜的寄生率有所下降 ,但棉蚜茧蜂的羽化率却明显提高 ,说明转双价基因棉对棉蚜茧蜂的寄生力影响不大。转双价基因棉和Bt棉均严重影响侧沟茧蜂和齿唇姬蜂的寄生率、羽化率、茧重和蜂重 。Effects of transgenic Cry1Ac plus CpTI cotton (double gene cotton) and transgenic Bt cotton (Bt cotton) on the development of main parasitoids Lysiphlebia japonica Ashmead, Microplitis sp and Campoletis chlorideae Uchida were studied in the laboratory. The results showed that difference of the moulting rate of the nature population Lysiphlebia japonica Ashmead from the double gene cotton field and Bt cotton field were not obvious comparing with that of the conventional cotton, the adult weight from double gene cotton was heavier than that of the Bt cotton, the difference of the adult weight between the double gene cotton and the conventional cotton, the Bt cotton and the conventional cotton were neither obvious. The difference of moulting rate, development duration and adult weight of the Lysiphlebia japonica Ashmead from the conventional cotton field to the aphids fed with the double gene cotton, Bt cotton and conventional cotton were both not obvious, the difference of parasited number between the treatment of the Bt cotton and conventional was obvious, but the difference of paradited number between the Bt cotton and double gene cotton, the double gene cotton and conventional cotton were all not obvious. The difference of parasited rate and moulting rate of the Lysiphlebia japonica Ashmead from the Bt cotton field to the aphids fed with the conventional cotton and the Bt cotton respectively were not obvious, comparing with the treatment of conventional cotton itself. The difference of parasited rate and moulting rate of the Lysiphlebia japonica Ashmead from the double gene cotton to the aphids fed with conventional cotton were not obvious, comparing with the treatment of conventional cotton itself. But the parasited rate of Lysiphlebia japonica Ashmead from the double gene cotton field to the aphids fed with the double gene cotton decreased, the moulting rate increased obviously, so the effect of the double gene cotton on parasiting ability of Lysiphlebia japonica Ashmead are little. In the meantime, the effect

关 键 词：转双价基因 棉蚜 蚜茧蜂 棉田 常规棉 BT棉 寄生性天敌 差异 影响 下降 

分 类 号：S435.622[农业科学—农业昆虫与害虫防治]