卵期短时间高温和低温处理对草地贪夜蛾生长的影响  

Effects of Short-term High and Low Temperature Treatments on the Growth of Spodoptera frugiperda in Egg Stage

作　　者：杨艺炜 袁冬贞 谢飞舟 王家哲 杨洁[3] 魏佩瑶 洪波 YANG Yiwei;YUAN Dongzhen;XIE Feizhou;WANG Jiazhe;YANG Jie;WEI Peiyao;HONG Bo(Bio-Agriculture Institute of Shaanxi,Xi'an Shaanxi 710043;Plant Protection Station of Shaanxi Province,Xi'an Shaanxi 710003;Xi'an Agricultural Technology Extension Center,Xi'an Shaanxi 710061)

机构地区：[1]陕西省生物农业研究所,陕西西安710043 [2]陕西省植物保护工作总站,陕西西安710003 [3]西安市农业技术推广中心,陕西西安710061

出　　处：《现代农业科技》2023年第14期68-71,共4页Modern Agricultural Science and Technology

基　　金：陕西省科学院科学研究专项(2021K-8)

摘　　要：为明确草地贪夜蛾卵对高温和低温的适应性,以温度28℃处理为对照,研究了草地贪夜蛾卵在低温(10、13、16、19、22℃)和高温(35、38、41℃)条件下处理不同时间(12、24 h)对其孵化、发育历期及性比的影响。结果表明,短期高温和低温处理对草地贪夜蛾卵的孵化率、孵化时间、发育历期及性比有一定影响。10、13、38、41℃温度处理后卵的孵化率显著低于对照;卵孵化时间随着温度增加而缩短;10、13、16℃温度处理会显著延长草地贪夜蛾幼虫发育历期,38、41℃温度处理会显著缩短草地贪夜蛾幼虫发育历期。41℃高温处理12 h后,草地贪夜蛾雌虫比例为56.33%,显著高于对照及其他处理。In order to determine the adaptability of the eggs of Spodoptera frugiperda to high and low temperatures,the effects of eggs treated at low temperature(10,13,16,19,22℃)and high temperature(35,38,41℃)for different time(12,24 h)on hatching,developmental duration and sex ratio of Spodoptera frugiperda were studied.The results showed that short-term high and low temperature treatments had certain effects on the hatching rate,hatching time,developmental duration and sex ratio of the eggs of Spodoptera frugiperda.The hatching rate of eggs treated at 10,13,38 and 41℃was significantly lower than that of the control.The hatching time of the eggs decreased with the increase of temperature.Developmental duration of Spodoptera frugiperda larvae significantly extended when eggs were treated at 10,13,16℃,while developmental duration of Spodoptera frugiperda larvae significantly shortened when eggs were treated at 38,41℃.After eggs were treated at 41℃for 12 h,the proportion of female Spodoptera frugiperda was 56.33%,which was significantly higher than that in the control and other treatments.

关 键 词：草地贪夜蛾 卵期 短时高温 短时低温 孵化 性比 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]