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近几年来,莆田部分麻田严重发生青枯死秆现象,对红麻生产和良种繁育构成威胁。为此,我们于1986～1988年连续三年,进行系统病原测定和发生规律研究。结果发现,病株基部的维管束呈褐色病征,在9倍扩大镜下见到有细菌浓溢出;经多次的病原分离培养、回接和对花生、芝麻寄主测定,结果得到一致性病状,肯定了病原菌株为青枯病菌。经中国农科院植保所研究员何礼远鉴定,确认为Pseudomonas s-danacearnm E.F.Smith,属生化变种Ⅲ。经检索证
In recent years, part of Matsu, Putian, a serious occurrence of blue-white dead stalks, kenaf production and breeding a threat. To this end, we in 1986 to 1988 for three consecutive years, systematic pathogen determination and occurrence of law. The results showed that the vascular bundles at the base of the diseased plants showed a brownish appearance, and bacteria concentration was observed under a magnifying glass of 9 times. After many times of pathogen isolation and culture, backwashing and host determination of peanut and sesame, the results were consistent with symptoms, Affirmed the pathogen strains of bacterial wilt. He Liyuan, a researcher at the Institute of Plant Protection of Chinese Academy of Agricultural Sciences, was identified as Pseudomonas s-danacearnm E.F.Smith and belongs to biochemical variety Ⅲ. The search card