摘要
将苹果、梨、山楂、桃、杏、杨树腐烂病病原菌的培养性状、产孢条件和数量、分生孢子器及分生孢子的大小进行比较，种间存在明显差异。交互接种试验表明，苹果壳囊孢（ＣｙｔｏｓｐｏｒａｓＰ．）能够侵染苹果、梨、山楂、桃、杏、杨树枝条，接种发病率为５％～１００％；梨壳囊孢（Ｃ．ｃａｒｐｈｈｏｓｐｅｒｍａ）、山楂壳囊孢（Ｃ．ｏｘｙａｃａｎｔｈａｅ）、核果壳羹孢（Ｃ．ｌｅｕｃｏｓｔｏｍａ）—桃和杏树的分离物均能够侵染苹果枝条，接种发病率为６０％～１００％；金黄壳囊孢（Ｃ．ｃｈｒｙｓｏｐｅｒｍａ）虽然不能侵染苹果枝条，但是苹果壳囊孢（Ｃｙｔｏｓｐｏｒａｓｐ．）能够侵染杨树枝条，接种发病率为１００％。因此，６种树木上的腐烂病菌均可成为苹果树腐烂病的侵染来源。
The pathogens of valsa canker of apple,pear,hawthorn,peach,apricot,poplarwere differentiated in cultural characteristic,conditions of production,number, measuresof pycnidia and conidia.Apple,pear,hawthorn,poplar could be infected by the pathogenof apple valsa canker, the rate of diseased branches after inoculation wAs 5% ￣ 100%.Apple could be infected by Cytospora carphosperma,C. oxyacanthae,C. leucostoma, therate of diseased branches after inoculation was 60%-100%. Apple could not be infectedby C. chrysosperma but poplar could be infected by the pathogen of apple valsa canker,the rate of diseased branches after inoculation was 100%. The pathogens parasited in apple, pear, hawthorn, peach, apricot, poplar may be regarded as the pathogen sources ofapple valsa canker.
出处
《山东农业大学学报（自然科学版）》
CSCD
1996年第3期281-283,共3页
Journal of Shandong Agricultural University：Natural Science Edition
关键词
腐烂病
侵染来源
苹果树
Mains pumilal Valsa canker lpathogen sources
