摘要
将湖北省七个产棉县的棉花黄萎病菌(Verticillium dahliac Kleb)进行接种,测定其致病力、结果表明:除钟祥菌系致病力较弱外.其它六个菌系致病力都较强。其中以天门菌系,宜城菌系、襄阳菌系及京山菌系致病力最强,枝江菌系,云梦菌系次之。并根据姚耀文的生理型划分标准可将上述七个菌系分为三个生理型。
The pathogenicity of seven strains of Verticilliun dahliae Kleb isolated from seven cotton-producing counties in Hubei province wastested byinoculating these strains on seven differential cultivars belonging to three cotton species ( Gossypium barbadense, G. hirsutum, G. arboreum ) The results showed that there were significant differences in disease level among these seven isolates. The disease level was low for isolate EV2 (mean disease index 30)intermediate for EV7 and EV6 (mean disease indices 50-60), and high for the isolates of EV1, EV3, EV4, EV5 ( mean disease indices above 60) .
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1989年第3期227-230,共4页
Journal of Huazhong Agricultural University
关键词
棉花
黄萎病
菌系
致病力
cotton
Verticillium dahliae Kleb
pathogenicity
