摘要
为了明确宁夏向日葵黄萎病病原菌种类,分析病害发生规律,研究防病关键技术。采用形态分类方法对病原菌进行种的鉴定,采用一般生物学方法对病原菌重要生物学特性及致病性进行研究。病原菌种的鉴定结果表明宁夏向日葵黄萎病致病菌为大丽轮枝菌。病原菌的生物学特性研究表明:病原菌菌丝生长温度范围为10~30℃,最适生长温度为25℃,最适合在黑暗条件下生长,最适生长p H为5~6,最适生长碳氮源分别为淀粉和甘氨酸;致死温度50℃。
In order to clarity species of sunflower Verticillium wilt pathogen, the occurring regularity of the disease was analyzed and the key control technology was studied. In the research, species of the pathogens are identified by morphology and biological methods; and the important biological characteristics and pathogenicty of the pathogens were researched by general biologic method. The identified results of pathogen showed that main pathogens causing the sunflower Verticillium wilt areVerticillum dahliae in Ningxia.Research on biological characteristical of pathogen showed that the growth temperature range was from 10℃ to 30℃, the pathogenic hyphae optimum growth temperature was 25℃ in dark; the optimum pH range was 5-6; the optimal carbon and nitrogen sources were starch and glycine; And the lethal temperature was 50℃.
出处
《作物杂志》
CAS
北大核心
2017年第4期161-164,F0004,共5页
Crops
基金
宁夏农林科学院先导项目(NKYQ-15-02)
国家向日葵产业技术体系支撑项目(CARS-016)
关键词
向日葵
黄萎病
致病
生物学特性
Sunflower
Verti^illium wilt
Pathogenic
Biological characteristics
