摘要
选用山东省有代表性的棉黄萎菌１６个菌株（系）各配制成一定浓度的孢子悬浮液，于棉苗２～３叶期蘸根接种，观察发病的反应型。结果表明：各菌株致病力强弱差异明显，可分为致病力强的Ⅰ型（即与落叶型相似）、致病力中等的Ⅱ型和致病力弱的Ⅲ型，并发现山东省有落叶型菌系存在。
Sixteen strains of Verticillium dahliae isolated from
Shandong Province and one strain(VD-8)from BAU and two(T-9、SS-4)from USA were studied in the
seedlings of cotton with root-dip methodin greenhouse. All strains were dlvidied into three types of
pathogenicity. Type Ⅰ showed severe defoliat-ing virulance, Type Ⅱ was an intermediate type
with indefoliating dead leaves.Type Ⅲ were character-ized by a mild wilt with yellow spots on
leaves.
出处
《植物保护》
CAS
CSCD
北大核心
1995年第6期2-5,共4页
Plant Protection
关键词
棉花
花化萎缩病
黄萎菌
致病力
落叶型菌系
Verticillium dahliae, pathogenic differentiation, defoliating virulance.
