电子束辐照对朱砂叶螨成螨存活和繁殖力的影响  

EFFECTS OF ELECTRON BEAM IRRADIATION ON Tetranychus cinnabarinus (BOISDUVAL) LIVABILITY AND REPRODUCTION

作　　者：陈宇[1,2] 吴庆[3] 孔秋莲[1] 岳玲[1] 陈志军[1] 王炳奎[3] 戚文元[1] 

机构地区：[1]上海市农业科学院,上海201106 [2]南京农业大学同艺学院,江苏南京210095 [3]浙江省农业科学院作物与核技术研究所,浙江杭州310021

出　　处：《核农学报》2011年第4期742-745,753,共5页Journal of Nuclear Agricultural Sciences

基　　金：公益性行业(农业)科研专项经费(201103007)

摘　　要：以朱砂叶螨成螨为试材,研究了电子加速器辐照处理对成螨存活和繁殖的影响,以为叶螨的辐照检疫处理提供依据。叶螨成螨用0.4、0.8、1.2、1.6、2.0kGy辐照处理后于室温(28℃～30℃)自然光照下饲养,每天检测死亡率、产卵及其孵化情况。结果表明,成螨死亡率随剂量增加而增加,相关和回归分析显示,剂量与机率值(死亡率的转换值)的相关系数显著,辐照后24和48h时99.9%致死率对应的预测剂量分别为5.615和3.147kGy。2.0和1.6kGy处理后成螨完全不育,全部死亡的时间分别为96h、168h。1.2、0.8和0.4kGy处理后成螨在整个观察期内(168h)均保持一定的存活率,但无繁殖能力,其中0.4kGy处理可产卵,卵可孵化但未见幼螨发育;1.2、0.8kGy处理可产卵,但卵未孵化。0.4kGy电子束处理可作为防治朱砂叶螨的有效检疫剂量。Tetranychid mites adults were irradiated using electron beam at the dose of 0.4、0.8、1.2、1.6 and 2.0kGy to develop irradiation quarantine treatment.Mortality of adults significantly decreased with the increasing of irradiation dose.The estimated dose to kill tetranychid mite adults in 24h is 5.615kGy,and 3.147kGy in 48h.168h observation of 0.4 kGy treated samples,obiposition could occurred and some eggs might hatch,but there was no development of the larvae.At the dose of 1.2 and 0.8 kGy,obiposition occurred but no eggs hatching were observed.Treatment of 2.0 and 1.6kGy irradiation,tetranychid mite adults were killed completely at 96 and 168h,and no obiposition observed all the time.A 0.4kGy irradiation is recommended as a generic quarantine treatment against potential infestation of tetranychid mites.

关 键 词：朱砂叶螨 电子束 辐照 检疫处理 

分 类 号：S124[农业科学—农业基础科学] S433.7