【摘要】 用对峙培养法和抑制孢子萌发法,筛选出1株对灰葡萄孢BotrytiscinereaPers.具有较强拮抗作用的木霉菌株T95,该菌株可产生大量较细的螺旋状分枝菌丝缠绕病菌菌丝,使其断裂并可迅速消解病菌的菌丝和孢子。孢子浓度为6×106/ml时,可有效抑制病菌孢子萌发。田间防病试验显示,T95孢子量为5×106/ml,喷雾2次,对冬季大棚番茄灰霉病的防效可达80.9%。更多还原

【Abstract】 Isolate T95 of Trichoderma sp. Isolated from soil has shown the antagonistic action against the pathogen of Botrytis cinerea Pers. In solid culture medium. Antagonistic action showed parasitism and competition between isolate T95 and the above pathogen. Effective were 6×106/ml conidia ; The control experiment in the fields showed when effective inhibitory concentrations of isolate T95 were 5×106/ml conidia,it was the most effective in greenhouse experiments to against Botrytis cinerea Pers. and it′s control efficiency was more than 80.9%.更多还原