西芹种子浸提液对黄瓜枯萎病菌的化感作用  

Allelopathy of parsley seed extracts on Fusarium oxysporium f.sp. cucumeris

作　　者：贾俊英[1,2] 张丽莹[1] 云兴福[1] 

机构地区：[1]内蒙古农业大学农学院,呼和浩特010019 [2]内蒙古民族大学农学院,内蒙古通辽028000

出　　处：《生态学杂志》2011年第7期1473-1478,共6页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(30960068);内蒙古自治区科技攻关项目(20081503)资助

摘　　要：为探讨西芹种子浸提液对黄瓜枯萎病菌是否有化感作用及其化感作用强度的大小,采用蒸馏水、乙醇、丙酮作为浸提剂,获得西芹种子的浸提液。用生长速率法研究其对黄瓜枯萎病菌的化感作用。结果表明:西芹种子的水、乙醇、丙酮浸提液都对黄瓜枯萎病菌有化感作用,浓度越大化感作用越强;50 mg.ml-1浓度的3种浸提液处理后144 h时与对照相比抑制黄瓜枯萎病菌蒸馏水浸提液为31.1%,乙醇浸提液为49.6%,丙酮浸提液为57.5%;乙醇、丙酮浸提液的化感作用强度大于蒸馏水浸提液。By using distilled water,ethanol,and acetone as extraction agents,the parsley seed extracts were obtained to approach whether the extracts had allelopathy on Fusarium oxysporium f.sp.cucumeris and the intensity of the allelopathy with the help of growth rate method.All the three kinds of the extracts did have allelopathic effect on F.oxysporium f.sp.cucumeris,and the effect increased with increasing concentration of the extracts.After treated with the highest concentration 50 mg·ml^-1 of the extracts for 144 h,the growth rate of F.oxysporium f.sp.cucumeris was decreased by 31.1%,49.6%,and 57.5% for the distilled water,ethanol,and acetone extracts,respectively,suggesting that ethanol and acetone extracts had stronger allelopathic effect than distilled water extract.

关 键 词：西芹 种子浸提液 黄瓜枯萎病菌 化感作用 

分 类 号：S436.421[农业科学—农业昆虫与害虫防治]