亚洲玉米螟滞育诱导外源性因子研究  

The effects of some factors on the diapause induction of Asian corn borer ( Ostrinia furnacalis )

作　　者：戴志一[1] 秦启联[1] 杨益众[1] 黄东林[1] 

机构地区：[1]扬州大学农学院植保系,扬州225009

出　　处：《生态学报》2000年第4期620-623,共4页Acta Ecologica Sinica

基　　金：江苏省"八五"重大攻关资助项目!(G9100-05)

摘　　要：研究了食料、温度、光周期等外源性因子对亚洲玉米螟滞育的影响。试验证明 ,食料性质对其滞育诱导影响显著。取食玉米雌穗的幼虫对滞育诱导光周反应的敏感性强于取食棉铃的幼虫。在一定范围内 ,食料中可溶性糖含量增加可促进幼虫的滞育诱导 ,而粗蛋白含量的增加则具有抑制滞育诱导的作用 ;两者的互作效应不显著。高温抑制滞育诱导 ,低温促进滞育诱导。短光周对幼虫的滞育诱导无特定的敏感龄期 ,但以 3龄与 2龄对短光周刺激敏感性较强 ;This paper deals with the effects of food,temperature and photoperiod on the diapause of Asian corn borer, Ostrinia furnacalis (Güene'e).The results showed that the effects of different food on the diapause induction of Asian corn borer were significantly different.The sensitivity of diapause induction by photoperiod of the larvae fed by corn ear was stronger than that of the larvae fed by cotton boll.To some extent,higher concentration of soluble sugar in the food promoted the induction of larval diapause,while higher concentration of protein suppressed it.Higher temperature was favorable to suppress the induction of larval diapause,while lower temperature was favorable to the induction of diapause.There were not determined sensitive stages of larval diapause induction by short photoperiod,but the population was more sensitive in 2 and 3 instars.The induction effects by short photoperiod were additive.

关 键 词：亚洲玉米螟 合物 温度 光周期 滞育 农业害虫 

分 类 号：S433[农业科学—农业昆虫与害虫防治]