郑州地区甜瓜白粉病菌生理小种鉴定

摘要

采用孢子悬浮液喷雾法对国际公认的13个甜瓜白粉病生理小种鉴别寄主进行接种,根据抗感反应,初步确定Sphaerotheca fuliginea小种1为郑州地区甜瓜白粉病致病生理小种.%Thirteen internationally accepted melon host differentials were used to reveal the race differentiation of melon powdery mildew pathogen by spore spray method. Our result showed that race 1 of Sphaerothecajuliginea was the dominant race caused melon powdery mildew in Zhengzhou.