板栗干腐病研究:Ⅱ.症状及病原  

Studies on the Dry Rot of Chestnut Ⅱ Syndrome and Pathogens

作　　者：梅汝鸿[1] 陈宝琨[1] 陈璧[1] 李文华 

机构地区：[1]北京农业大学,北京100094

出　　处：《中国微生态学杂志》1991年第1期75-79,共5页Chinese Journal of Microecology

摘　　要：对板栗干腐病症状及病原的研究结果表明:1.板栗干腐病主要发生于种仁上,其病斑大小、质地不一。按色泽可分为褐、黑、白、灰、黄五类。果实其它部位也偶有症状产生;2.此病为多种真菌复合侵染所致。主要的致病菌有Phoma、Phomopsis、Dothiorella、Gloeosporium和Cytospora等属真菌,另有十余种弱寄生及腐生菌有时也混合发生。The studies on the syndrome and pathogens of dry rot of chestnut showed that:1) the disease mainly occurs on chestnut kernels, but the size and colours of decayed parts of kernels may be different. They can be brown, black, white, gray and yellow. Occasionally, it may occur on other parts of fruits.2) the disease is caused by several kinds of pathogenic fungi complexly Phoma sp, Phomopsis sp, Dothiorella sp,Cytospora sp,Gloeosporium sp which were isolated from the decayed parts of kernels frequently. There are also more than 10 kinds of weak-parasitic and saprophytic fungi which can be found on the decayed kernels of chestnuts.

关 键 词：板栗 干腐病 

分 类 号：Q[生物学] R[医药卫生]