贾晓辉;王文辉;李世强;申春苗;姜云斌;何子顺;夏玉静;

• 1:中国农业科学院果树研究所
• 2:新疆库尔勒市香梨研究中心
• 3:南京农业大学

摘要(Abstract)：

2007-2009年,在新疆库尔勒地区,香梨在贮藏期发生一种此前极少发生的病害,即萼端黑斑。为了探明该病害的发生原因,对香梨健康果与萼端黑斑果果实品质、矿质元素等方面进行了比较研究,同时对黑斑病果进行病原学鉴定。结果表明,香梨萼端黑斑病果实较健果可溶性固形物含量低,且病果中公梨(花萼宿存或未脱落净的)所占比例高达80%;矿质元素测定结果表明,病果中Ca含量低于健果,而N/Ca、K/Ca均高于健果,且果实花萼端钙含量最低,氮含量以及N/Ca、K/Ca最高。柯赫氏证病法结果显示,分离得到的枝孢霉属(Cladosporium cladosporioides)和链格孢属(Alternaria alternata)真菌为非致病菌。初步认为,库尔勒香梨萼端黑斑病是一种由于果实品质下降和N/Ca、K/Ca失调及缺钙引起的生理性病害。

关键词(KeyWords)： 库尔勒香梨;萼端黑斑病;品质;矿质营养;病原鉴定

Abstract:

Keywords:

基金项目(Foundation): 现代农业产业技术体系建设专项(nycytx-29-18)

作者(Author): 贾晓辉;王文辉;李世强;申春苗;姜云斌;何子顺;夏玉静;

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