豆天蛾越冬幼虫滞育解除后生物学特性的研究  

Diapause termination and post-diapause of overwintering Clanis bilineata tsingtauica larvae

作　　者：郭明明[1] 李晓峰 邓盼 李大维 李俊领 樊继伟[1] 陈凤[1] GUO Ming-Ming;LI Xiao-Feng;DENG Pan;LI Da-Wei;LI Jun-Ling;FAN Ji-Wei;CHEN Feng(Lianyungang Academy of Agricultural Sciences,Lianyungang 222000,China;Jiangsu Academy of Agricultural Sciences Institute of Leisure Agriculture,Nanjing 210000,China;Yuntai Branch of Jiangsu Provincial Agricultural Reclamation and Development Corporation,Lianyungang 222063,China)

机构地区：[1]连云港市农业科学院,连云港222000 [2]江苏省农业科学院休闲农业研究所,南京210000 [3]江苏省农垦农业发展股份有限公司云台分公司,连云港222063

出　　处：《应用昆虫学报》2021年第4期966-972,共7页Chinese Journal of Applied Entomology

基　　金：江苏省农业科技自主创新资金项目[CX(20)3117];连云港市财政局专项资金项目(QNJJ1903)。

摘　　要：【目的】豆天蛾Clanisbilineatatsingtauica以老熟幼虫进入滞育越冬,为探明豆天蛾滞育解除的机制。【方法】本研究设置4个不同温度梯度,在恒湿条件下,研究不同温度处理下豆天蛾滞育持续时间、化蛹及羽化的差异。【结果】温度对豆天蛾滞育解除存在一定影响。随着温度升高,豆天蛾滞育持续时间和蛹期逐渐缩短,在35℃条件下滞育持续时间和蛹期最短,分别为(34.4±0.3)d和(6.7±1.2)d;而化蛹率、蛹重随温度的升高呈先升高后降低,在25℃时,化蛹率最高为(80.60±0.26)%,在30℃时,蛹重最大为(4.21±0.07)g/头。豆天蛾成虫羽化率随温度升高而显著降低;25℃条件下,单雌产卵量最大,达到(204±9)粒。本室内条件下,豆天蛾滞育解除的有效积温为1111.1日·度。【结论】在温度为25℃的条件下最有利于豆天蛾滞育解除后的生长发育。[Objectives]To investigate the mechanism of diapause termination in Clanis bilineata tsingtauica which mainly enters diapause as mature larvae.[Methods]Larvae were kept under four different temperature gradients under constant humidity and differences in diapause duration,pupation and emergence between these temperature treatment groups was compared.[Results]The duration of diapause and the pupal stage gradually shortened as temperature increased,reaching minimum values of(34.4±0.3)d and(6.7±1.2)d,respectively at 35℃.The pupation rate and pupal weight first increased,then decreased,with increasing temperature.The maximum pupation rate was(80.60±0.26)%at 25℃and the maximum average pupal weight was(4.21±0.07)g at 30℃.The adult emergence rate decreased significantly with increasing temperature.The oviposition rate reached a maximum of(204±9)eggs/female at 25℃.These results show that the diapause status of Clanis bilineata tsingtauica could be reversed when the effective accumulated temperature reached 1111.1 degree·days at room temperature.[Conclusion]The post-diapause growth and development of Clanis bilineata tsingtauica was optimal after diapause termination at a temperature of 25℃.

关 键 词：豆天蛾 温度 滞育解除 生物学特性 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]