取食转双抗虫基因741杨的白杨毛蚜对异色瓢虫幼虫生长存活和发育的影响

室内以单头饲养的方法,比较了取食转双抗虫基因741杨(以下简称转基因741杨)中抗Pb17,高抗Pb29和对照741杨的白杨毛蚜对异色瓢虫幼虫存活和发育的影响。结果表明:与对照741杨相比,取食中抗Pb17和高抗Pb29的白杨毛蚜都对异色瓢虫的幼虫死亡率和蛹期死亡率没有显著的影响;对各个的发育历期影响不显著,但都显著的降低了异色瓢虫蛹期的发育时间;对成虫的体重、性比和羽化率没有影响。取食中抗Pb17与高抗Pb29和对照741杨上白杨毛蚜的异色瓢虫的生存曲线变化趋势相近。

Survival and development immature Harmonia axyridis (Pallas)feeding on Chaito phorus popleti ( Panzen ) propagated on transgenic insect- resisitance hybrid poplar 741

Laboratory experiments were carried out to study the survival and development of the Harmonia axyridis(Pallas) feeding on Chaito phorus popleti(Panzen) on high insect-resisitance hybrid poplar 741(Pb29) and medium insect-resisitance hybrid poplar 741(Pb17).The API 741 poplar was used as control.The mortality and development during immature period,adult,baby mass,eclosion and sex ratio of H.axyridis(Pallas) were measured.The results showed that:To contrast the API 741,Chaito phorus popleti(Panzen) on Pb17 and Pb29 has no significantly impacts on mortality of immature period and pupa stage.Although every development stage of ladybeetles were not affected,the pupal duration of ladybeetles was lowered than the control;The body mass?eclosion and sex ratio have no significant difference.The survival curved-line of H.axyridis(Pallas) feeding on Chaito phorus popleti(Panzen) on Pb17 and Pb29 has the similar changing tendency.