分蘖洋葱鳞茎粗提物对西瓜枯萎病病原菌(Fusarium oxysporum f.sp.niveum)的影响  

Effect of potato-onion bulb extraction on Fusarium oxysporum f.sp.nive-um

作　　者：杜黎黎[1] 王学征[1] 马鸿艳[1] 栾非时[1] 

机构地区：[1]东北农业大学园艺学院,哈尔滨150030

出　　处：《东北农业大学学报》2011年第1期114-119,共6页Journal of Northeast Agricultural University

基　　金：黑龙江省自然科学基金重点项目(ZJN0705);黑龙江省杰出青年基金项目(JC200712)

摘　　要：采用分蘖洋葱鳞茎粗提物对西瓜枯萎病病原菌(Fusarium oxysporum f.sp.niveum)菌丝生长、孢子萌发、病原菌生物量及产孢量等抑制作用进行研究。结果表明,分蘖洋葱鳞茎粗提物对西瓜枯萎病病原菌的菌丝生长、孢子萌发率、病原菌生物量及产孢量均有一定的抑制作用。当分蘖洋葱鳞茎粗提物浓度为1 000 mg.mL-1时,对西瓜枯萎病病原菌的抑制作用最大,抑菌率达到69.21%。探索了分蘖洋葱鳞茎粗提物防治西瓜枯萎病的可行性,为今后指导西瓜无公害生产提供理论依据。Effects of potato-onion extraction concentration on Fusarium oxysporum spore germination, hyphae growth, fungi biomass, and spore production were evaluated in this research. Results showed that potato-onion extraction concentration had inhibition on Fusarium oxysporum spore germination rate, fungi biomass, and spore production to some extent. The hyphae growth inhibition reached the highest value with 69.21% with treated by 1 000 mg .mL^-1 of potato-onion extraction. The aim of this research was to explore the biocontrol feasibility of potato-onion extraction concentration on Fusarium oxysporum and provide theory in practice control.

关 键 词：西瓜枯萎病 分蘖洋葱 病原菌 

分 类 号：S436.429[农业科学—农业昆虫与害虫防治]