安徽农业科学2011，Vol.39Issue(35)：21701-21703,3.
花生根系腐解物对根腐镰刀菌和固氮菌的化感作用研究
Study on Allelopathy of Decayed Peanut Root on Root Rot Fungl and N-fixing Bacteria
摘要
Abstract
[Objective] The aim was to study allelopathy of decayed peanut root on root rot fungi (Fusarium sp. ) 36194 and N-fixing bacteria (Bradyrhizobium vigna) 14046. [ Method] Decayed peanut root after different years of continuous cropping was got by the method of cultivation in incubator,then put on the culture medium of root rot fungi and N-fixing bacteria after sterilization,to determine the effect of decayed peanut root on the growth of two. [ Result ] Decayed peanut root promoted the allelopathic promotion effects on the mycelium growth of root rot fungi (Fusarium sp. ) ,and inhibited the allelopathic inhibition effects on the growth of N-fixing bacteria {Bradyrhizobium vigna). The allelopathy strengthened with the increasing of the added concentration of decayed root and continuous cropping years. [ Conclusion] The accumulation of peanut root stubble in soil and the allelopathy effects of their decayed material on soil microbes might be one of the reasons of peanut continuous cropping obstacle.关键词
花生/根系腐解物/化感作用/根腐镰刀菌/固氮菌Key words
Peanut/Decayed root/Allelopathy/Root rot fungi (Fusarium sp. ) /N-frxing bacteria (Bradyrhizobium vigna)分类
农业科技引用本文复制引用
刘苹,王梅,杨力,于淑芳,万书波..花生根系腐解物对根腐镰刀菌和固氮菌的化感作用研究[J].安徽农业科学,2011,39(35):21701-21703,3.基金项目
国家自然科学基金项目(30800135) （30800135）
现代农业产业技术体系建设专项(CARS-14). （CARS-14）
