应用生态学报2017，Vol.28Issue(5)：1583-1587,5.DOI:10.13287/j.1001-9332.201705.007
低浓度Cry1Ac毒蛋白对棉大卷叶螟连续三代生长发育与繁殖的影响
Effects of low-concentration Cry1Ac toxic protein on growth and reproduction of three successive generations of Sylepta derogata population
摘要
Abstract
Cotton leaf roller Sylepta derogata causes serious damage to cotton at the later growing stages of cotton.A leaf-dip method was used to measure the effects of low-concentration Cry1Ac toxic protein on the development and population growth of three successive generations of cotton leaf rollers in this study.The larval duration of Bt-fed S.derogata was 1.78-2.00 d longer,adult life span 1.44-1.94 d longer,and pupal mass 5.3％-11.8％ higher than those of the control,respectively.The egg counts per female in the three generations were 65.1％,47.3％ and 37.6％ higher,respectively,than those of the control,and the indexes of population trend were 11.4％,17.5％ and 20.0％ greater,respectively.No significant differences were found in the duration of pupa duration,the emergence rate,the sex ratio,or the hatch rate.It was suggested that the population of cotton leaf rollers would steadily increase during the later stage of transgenic Bt cotton growth,therefore,further risk assessments of transgenie cotton and comprehensive management of these pests in cotton fields were needed.关键词
低浓度Cry1Ac/棉大卷叶螟/生长发育/种群增长Key words
low-concentration Cry1Ac/cotton leaf roller/growth/population growth引用本文复制引用
周浩,蔡文宸,苏宏华,杨益众..低浓度Cry1Ac毒蛋白对棉大卷叶螟连续三代生长发育与繁殖的影响[J].应用生态学报,2017,28(5):1583-1587,5.基金项目
本文由国家重大转基因专项(2016ZX08012-004)资助 This work was supported by the National Transgenic Major Project (2016ZX08012-004). （2016ZX08012-004）
