【摘要】 对在北京大兴、顺义、通县等西瓜主产区采集，经单孢分离得到的８个西瓜枯萎病菌株进行了生理小种分化研究。应用国际通用的３个鉴别寄主ＳｕｇａｒＢａｂｙ、ｃｈａｒｌｅｓｔｏｎＧｒａｙ、ｃａｌｈｏｕｒＧｒａｙ和国内京欣１号、苏蜜１号２个品种，采用全国协作组统一的苗期抗病鉴定方法，进行人工接种鉴定。结果表明北京地区西瓜枯萎病菌株均系同一生理型，为西瓜枯萎病生理小种１号。更多还原

【Abstract】 Study was carried out to identify the 8 samples of watermeion Fusarium Wilt (F. oxysporum f. sp. niveum) gathering from the main productive areas Daxing, Tongxian and Shunyi of Beijing. Sugar Baby, Charleston Gray, Calhoun Gray, Jingxin No. 1 and Sumi No. 1 were used as differential host varieties. The results showed that all of the 8 isolates were the physiologic race 1.更多还原