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新疆是杏树的起源地之一,已有1 600多年的栽培历史,品种繁多,主要包括3个类型:Armeniaca vulgaris Lam.,A. sibirica (L.) Lam.和A. dasgcarpa (Ebrh) Pers,其下约有100余种[1-6]。他们是我国重要的果树资源之一。然而,从2016年以来,巩留县超过50%杏树遭受病害,部分枝干产生坏死斑,叶片形成圆形穿孔,而果实受害情况尤为严重,其表面出现褐色、圆形、凹陷、分散或连续的病斑,树木落果,造成果实品质和产量下降。为确定造成巩留县杏树果实病害的原因,本研究对受害杏树果实病斑进行分离、培养,得到病原菌,利用传统形态学观察和分子系统学分析相结合的方式对所分离出菌株进行分类鉴定及其致病性检测。旨在研究造成新疆巩留县杏树果实病害的原因,为当地杏树防治工作提供依据。
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