译 名：
A Primary Study on Biocontrol Activity of Streptomyces corchorusii Strain NF0919 to Strawberry Fusarium Wilt
作 者：
CHEN Hong-zhou;ZHUANG Yi-qing;YANG Jing-hui;Zhenjiang Institute of Agricultural Sciences in Hilly Area of Jiangsu;
关键词：
Streptomyces corchorusii;;Strain NF0919;;Strawberry fusarium wilt;;Biocontrol activity
摘 要：
We determined the indoor toxicity of the fermentation broth of Streptomyces corchorusii strain NF0919 to the pathogen( Fusarium oxysporum f. sp. fragariae) of strawberry fusarium wilt through adopting mycelial growth rate method,and carried out the indoor pot experiment for the control of strawberry fusarium wilt. The results indicated that the EC50 values of NF0919 fermentation broth and Phenazine-1-carboxylic against the mycelial growth of Fusarium oxysporum f. sp. fragariae were 24. 3752 and0. 4001 μg /mL respectively. On the 30 th day after root-pouring treatment with the 20-fold dilution of fermentation supematant of NF0919 or the 800-fold dilution of 1% Phenazine-1-carboxylic SC,their control effect on strawberry fusarium wilt reached 65%or 90%,respectively.
