山西省棉花黄萎病菌致病力分化研究  被引量:18

Study on the Pathogenicity Differentiation of Verticillium Dahliae Kleb in Shanxi Province

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作  者:许爱玲[1] 

机构地区:[1]山西省农业科学院棉花研究所,山西运城044000

出  处:《山西农业科学》2006年第1期58-60,共3页Journal of Shanxi Agricultural Sciences

摘  要:选山西有代表性的棉花黄萎病菌19个菌系及3个对照菌种,各配成一定浓度的孢子悬浮液,于棉苗1~2叶期伤根接菌,在温室中对各代表菌系进行致病力测定。结果表明:各菌系致病力强弱差异明显,可分为致病力强的I型、致病力弱的II型和致病力中等的III型;并发现山西棉花黄萎病有落叶型菌系存在。Study on pathogenicity of 19 Verticillium wilt strain that were isolated from diseased plants collected from main cotton production' areas in Shanxi Province and 3 control samples was carried out in greenhouse. According to their reaction in hosts, 22 strains were classified into 3 types of pathogenicity : type Ⅱ severe pathogenic, type Ⅱ weak strains,type Ⅲ intermediate type. It is found that there exited defoliation strain in these strains.

关 键 词:棉花 黄萎病 落叶型菌系 

分 类 号:S435.621[农业科学—农业昆虫与害虫防治]

 

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