伏毛铁棒锤不同部位提取物对小菜蛾的活性作用方式  

Study on action mode of the different parts of Acontium flavum Hand.-Mazz.against Plutella xylostella

作　　者：张玉粉[1] 郭宏霞[1] 尤江[1] 郝凤霞[1] 杨敏丽[2] 

机构地区：[1]宁夏大学能源化工重点实验室,宁夏银川750021 [2]上海师范大学生命与环境科学学院,上海200234

出　　处：《广东农业科学》2013年第7期89-91,共3页Guangdong Agricultural Sciences

基　　金：宁夏自然科学基金(NZ1135)

摘　　要：分别采用浸渍法、浸叶法、叶蝶法、饲喂称重法,测定了伏毛铁棒锤不同部位乙醇提取物对小菜蛾的触杀、拒食、胃毒、抑制生长发育活性。结果表明,伏毛铁棒锤乙醇提取物对小菜蛾均具有较高的触杀、拒食和胃毒活性,抑制生长发育活性较弱,而伏毛铁棒锤不同部位的乙醇提取物对小菜蛾的活性各不相同,5个部位中,根、荚和茎提取物的活性较强。可见,伏毛铁棒锤为生物源农药提供了一种植物来源。Four different methods such as dipping, leaf-dipping, leaf added and feeding were adopted respectively to test the different bioactivities of contacting, anti-feeding, stomach poison and inhibition of growth and development. The results showed that ethanol extracts of A contium flavum Hand.-Mazz. exhibited obvious contacting, anti-feeding and stomach poison activity against Plutella xylostella similarly, but the growth inhibition activities was relatively weak. Furthermore, ethanol extracts from different parts of A. flavum Hand.-Mazz. such as root, pod, stem, seed and leaf showed the different bioactivities against P. xylostellca In the five parts, the extracts of root, pod and stem displayed stronger activities than the others. Thus, A. flavum Hand.-Mazz. could provided a plant resource for biopesticides.

关 键 词：伏毛铁棒锤 不同部位 小菜蛾 活性作用方式 

分 类 号：S482.3[农业科学—农药学]