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中国农学通报

中国农学通报 ›› 2003, Vol. 19 ›› Issue (1): 44-44.

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毛叶枣黑斑病的病原鉴定及其生物学特性研究*

袁高庆 赖传雅 黄丽华   

  • 出版日期:2003-02-25 发布日期:2003-02-25

Studies on the Identification and Biological Properties of the Pathogen of Indian Jujube Black Spot

YUAN Gao-Qing LAI Chuan-Ya HUANG Li-Hua   

  • Online:2003-02-25 Published:2003-02-25

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摘要： 毛叶枣黑斑病菌是半知菌类链格孢属链格孢Alternaria alternaria。病菌生长和产孢温度范围10～35℃，适宜温度25～30℃；PDA培养基最适宜病菌生长和产孢；病菌在pH3～11时均能生长和产孢，pH6～7最适生长，pH5最适产孢；孢子萌发率在20～30℃和pH5～9时较高，25℃和pH为7时萌发最好；在饱和湿度再加水滴的条件下孢子才能很好萌发；1%葡萄糖液和毛叶枣汁液对孢子萌发有促进作用。

关键词: 假马鞭, 假马鞭, 贮藏方式, 温度, 萌发, 破除休眠

Abstract: It was identified that Alternaria alternata Keissler. was the pathogen of Indian Jujube black spot. The temperature range for the pathogen growth and sporulation was 10~35℃ with the optimal of 25~30℃. PDA was the optimal medium for the mycelial growth and sporulation. The pathogen could grow and sporulate in the condition of pH 3~11,while the optimal pH for mycelial growth was 6-7 and for sporulation was 5. The conidium could germinate well at 20~30℃ and pH 5~9, with the optimum of 25℃ and pH 7, the optimum humidity was RH 100% with water drop. 1% liquid of dextrose and leaf extract of Indian Jujube could hasten spore germination obviously.