江西省国外松枯梢病研究——病原菌Diplodia pinea生物学特性研究  

Studies on Shoot-Blight of Foreign Pines in Jiangxi Province:The Biological Characteristics of Pathogen Diplodia Pinea

作　　者：史东平[1,2] 李亚平 胡少昌[1,2] 

机构地区：[1]江西农业大学林学院 [2]庐山自然保护处

出　　处：《江西农业大学学报》1998年第2期210-216,共7页Acta Agriculturae Universitatis Jiangxiensis

摘　　要：按林木病害常规的研究方法，对松枯梢病病原菌的生物学特性和生长特性进行较系统和细致的研究。研究结果表明：该病原菌能在多种培养基上生长，但以在松梢煎汁液＋糖＋琼脂上为最好；其生长的最佳温度为２５℃，相对湿度９８％以上，ｐＨ值６．５～６．８之间。在一般培养条件下，病原菌在培养基上不产生子实体，但经紫外光每天照射２０ｍｉｎ，１０ｄ后即可产生子实体。子实体的形态、大小及特征和自然界中松梢上子实体基本一致，仅在形态上略大。The biological and growing characteristics of the pathogen diplodia pinea were studied systematically by using the methods of conventional plant pathology.The results showed that the pathogens could grow on kinds of mediums.The best medium was the mixture of decocted juice of pine top branch,sugar and agar,on which the optimum of the pathogen growth were under 25℃,98% relative humidity and pH 6.5～6.8. The pathogen couldn't produce any sporophores on any mediums in general culture conditions.but when irradiated with ultraviolet rays for 20 minutes per day,the sporophores could be produced after 10 days.The form of the sporophore was similar to that growing on the pine top branch in nature,but its size was a bit larger.

关 键 词：松树 枯梢病 病原菌 生物学特性 生长特性 

分 类 号：S763.712.4[农业科学—森林保护学]