摘要
为明确伊犁地区苹果黑星病病原菌的种类和生物学特性,结合病原菌的形态特征、培养性状和分子生物学进行鉴定,确定引起新疆伊犁地区苹果黑星病的病原为Venturia inaequali。通过不同温度、pH及培养基等对苹果黑星病菌生物学特性研究表明,病菌生长的最佳培养温度在20℃左右,最适生长pH为7和8,在OA培养基上的生长速度最快,在OMA培养基上生长最缓慢。室内毒力测定表明,供试4种原药中的3种对苹果黑星病菌菌丝的EC_(50)从小到大依次是吡唑醚菌酯<啶酰菌胺<嘧霉胺。
In order to clarify the species and biological characteristics of the pathogenic bacteria of apple scab in Yili area,combined with the morphological characteristics,culture characters and molecular biology identification of the pathogenic bacteria,it was determined that the pathogen causing apple scab in Yili area of Xinjiang was Venturia inaequali.The research on the biological characteristics of apple scab at different temperatures,pH and medium showed that the optimal culture temperature for the growth of the bacteria was about 20℃,the optimal growth pH was 7 and 8,and the growth rate on the OA medium was the highest.The growth rate on OMA medium was the slowest.Laboratory toxicity test showed that the EC_(50) of 3 of the 4 active drugs against the mycelia of P.aureus was pyrazole ester<dimetriamine<pyrimethanil.
作者
王华
唐晓雪
任毓忠
WANG Hua;TANG Xiao-xue;REN Yu-zhong(Yili Vocational and Technical College,Yining,Xinjiang 835000;Shihezi University,Shihezi,Xinjiang 832003)
出处
《安徽农业科学》
CAS
2023年第10期114-118,共5页
Journal of Anhui Agricultural Sciences
基金
新疆维吾尔自治区自然科学基金项目(2020D01A15)。
关键词
伊犁地区
苹果黑星病
病原菌
鉴定
生物学
毒力
Yili Region
Apple scab
Pathogenic bacteria
Indentification
Biology
Virulence
