白藓不同部位水蒸气蒸馏液对玉米蚜生物活性的影响研究  

Bioactivity Study of the Wet Distillation Liquid Against Rhopalosiphum maidis(Fitch) from Various Parts of Dictamnus dasycarpus Turcz.

作　　者：乔淑芬[1] 顾地周[1] 潘石[1] 

机构地区：[1]通化师范学院生物系,吉林通化134002

出　　处：《玉米科学》2010年第2期125-127,132,共4页Journal of Maize Sciences

基　　金：吉林省教育厅自然科学基金资助项目[(2003)-65]

摘　　要：利用均匀设计法研究了白藓根、茎和叶水蒸气蒸馏液对玉米蚜的生物活性。结果表明:白藓根的水蒸气蒸馏液对玉米蚜具有触杀和拒食作用,24h和48h的致死中浓度(LC50)分别为6.48mg/L和6.77mg/L,48h的致死率达99.8%。白藓叶的水蒸气蒸馏液只有拒食作用,且拒食作用的效果比根更加显著,对玉米蚜24h和48h的拒食中浓度(AFC50)分别为11.45mg/L和9.88mg/L,其中48h的拒食率达92.5%。白藓茎的水蒸气蒸馏液触杀和拒食作用均不明显。Studied bioactivity of the wet distillation liquid against Rhopalosiphum maidis(Fitch) from the roots,stems and leaves of Dictamnus dasycarpus Turcz.with uniform design.The results showed that the wet distillation liquid from the roots of Dictamnus dasycarpus had contact toxicity and anti-feedant activity with 24 h and 48 h LC50 value of 6.48 mg/L and 6.77mg/L,the 48 h rate of death was 99.8%.The wet distillation liquid of leaves had only antifeedant activity with 24 h and 48 h AFC50 value of 11.45 mg/L and...

关 键 词：白藓 玉米蚜 生物活性 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]