冬枣采后黑腐病病原菌分离鉴定及控制研究

Study on the Isolation,Identification and Control of Black Mould Pathogen of Winter Jujube After Postharvest

以新疆冬枣为试材,对其采后贮藏中黑腐病病原菌进行了分离纯化和鉴定,并对其控制措施进行了研究。结果表明:冬枣黑腐病病原菌鉴定为链格孢菌;链格孢菌在不同培养基上的菌落生长速率、产孢量以及菌落厚度差异较大,黑暗对其孢子的产生起促进作用,分生孢子致死温度为70℃,微波和超声波处理均能抑制其孢子的萌发,链格孢菌孢子具有较强的抗紫外线辐照能力。

Taking Xinjiang winter jujube as test material, the black mould pathogen of winter jujube after postharvest were separated and identified,control method of it also were studied. The results showed that fungal pathogen was identified as Alternaia alternata, the growth rate,spore production quantity and the thickness of the colony were significant different in different medium, the spores production of it was facilitated by darkness, the deadly temperature of spores was 70℃, microwave and ultrasonic treatment inhibited spore germination of Alternaia alternata ,it had better excellent character in UV irradiation resistance.