金丝小枣果实病害病原菌研究

According to study for years,fruits disease of Jinsixiaozao was divided into three types,which were thick rotten,dark furuncle and brown rind.Different symptom had different pathogenic fungus.The main pathogenic fungus of thick rotten type of jujube was Physalospora obtuse(Schw.)Cooke,and the isolated rate in the thick rotten disease fruits was 94.6.The main pathogenic fungus of dark furuncle type was Alternaria alternata(Fr.)Keissler,and the isolated rate in the dark furuncle fruits was 75.7.The main pathogenic fungus of the brown rind type was Phoma destructiva Plowr and A. alternata(Fr.)Keissler.The isolated rate in the brown rind type was 33.2 and 25.5 seperately.The mixed isolated rate was 19.1.According to this,three types of the fruits disease of Jinsixiaozao were named as thick rotten disease,dark furuncle and brown rind disease.