光周期和温度对大猿叶虫龙南种群滞育诱导的影响  

The Effects of Photoperiod and Temperature on Diapause Induction in the Longnan Population of the Cabbage Beetle,Colaphellus bowringi Baly(Coleoptera:Chrysomelidae)

作　　者：赖锡婷[1,2] 周昱晨 何海敏[1] 薛芳森[1] 

机构地区：[1]江西农业大学昆虫研究所,江西南昌330045 [2]江西省赣县区大田乡农业服务中心,江西赣州341121 [3]珠海出入境检验检疫局,广东珠海5190151

出　　处：《江西农业大学学报》2017年第5期895-899,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家自然科学基金项目(39960016)~~

摘　　要：为探明光周期和温度对大猿叶虫(Colaphellus bowringi)龙南种群滞育诱导的影响,在不同恒温条件下系统研究该虫的光周期反应。结果表明,该虫的光周期反应为典型的短日照类型,光周期反应高度依赖于温度。所有的成虫在温度≤18℃时无论光周期如何均进入滞育。高温能强烈地抑制长日照诱导的滞育,短日照的滞育抑制作用仅在高温(≥18℃)下才能表达。将幼虫在长日照条件下处理不同天数后转到短日照条件或反相进行,结果显示该虫的光敏感阶段出现在幼虫期,并且一个长光照的滞育诱导效应要强于一个短光照的滞育诱导效应。该虫的温度敏感阶段包括整个幼虫期、蛹期和成虫期。To ascertain the effects of photoperiod and temperature on diapause induction in the Longnan population of the cabbage beetle,Colaphellus bowringi Baly,photoperiodic responses were systematically investigated at different constant temperatures.The results showed that the cabbage beetle is a short-day species but its photoperiodic response highly depends on temperature.All adults entered diapause at ≤18 ℃ regardless of photoperiods.High temperatures strongly weakened the diapause-inducing effects of long daylengths. The diapause-averting influence of short daylengths was expressed only at high temperatures（ above 18 ℃）.By transferring from a long day to a short day or vice versa at different times after hatching,it was shown that the sensitive stage with regard to photoperiod was the larva,and a long day was photoperiodically more potent than a short day.Its sensitive stage to temperature encompassed the larval,pupal and adult stages.

关 键 词：大猿叶虫 光周期 温度 滞育诱导 

分 类 号：S433[农业科学—农业昆虫与害虫防治]