温度对花生锈菌夏孢子萌发及侵染的影响  

Effect of Temperature on Spore Germination and Infection of Peanut Rust Fungus P.arachidis Speg

作　　者：石欣隆 孙子淇 齐飞艳 韩锁义 郑奕雄[3] 董文召 张新友 SHI Xin-long;SUN Zi-qi;QI Fei-yan;HAN Suo-yi;ZHENG Yi-xiong;DONG Wen-zhao;ZHANG Xin-you(College of Agriculture/Tree Peony,Henan University of Science and Technology,Luoyang 471023,China;The Shermong Lab./Henan Academy of Crop Molecular Breeding/Key Lab.of Oil Crops in Huang-Huai-Hai Plains,Ministry of Agricuiture and Rural Affaires/Henan Provincial Key Lab.for Oil Crop Im provement,Zhengzhou 450002,China;Zhongkai Institute of Agricultural Engineering,Guangzhou 510225,China)

机构地区：[1]河南科技大学农学院/牡丹学院,河南洛阳471023 [2]神农种业实验室/河南省作物分子育种研究院/农业农村部黄淮海油料作物重点实验室/河南省油料作物遗传改良重点实验室,河南郑州450002 [3]仲恺农业工程学院,广东广州510225

出　　处：《花生学报》2023年第4期1-6,31,共7页Journal of Peanut Science

基　　金：神农种业实验室一流课题项目(SN01-2022-03);河南省重大科技项目(201300111000);国家现代农业产业技术体系(CARS-13);中国河南省农业研究体系(S2012-5);河南省中央政府指导下的区域间地方科技发展合作专业研发项目(YDZX20214100004191)。

摘　　要：温度是影响锈菌夏孢子侵染花生的重要因素之一,关于温度对花生锈菌夏孢子萌发及侵染的影响鲜有报道。本研究通过不同温度条件下夏孢子的萌发率和8个对锈病抗感差异较大花生品种的接种试验确定锈孢子萌发和侵染的最适温度。研究结果表明,夏孢子萌发和侵染的适宜温度为25~28℃,此条件下夏孢子萌发率较高,为68.23%,抗病材料的潜伏期为8.11~8.67d,感病材料的潜伏期为6.44~6.89d。本研究可为花生种质锈病抗性鉴定和抗锈病品种选育工作提供理论依据。Temperature is one of the important factors affecting the infection of peanut by rust fungus,and there are few reports about the influence of temperature on the germination and infection of Puccinia arachidis Speg.In the present study,the optimum temperature for germination and infection of rust spores was determined by the germination rate of rust spores and inoculation tests of eight peanut varieties with different resistance to rust disease under different temperature conditions.The results indicated that the optimum temperature for germination and infection of rust spores was 25~28℃,under which the germination rate of summer spores was 68.23%,the incubation period of resistant materials was 8.11~8.67 days,and that of susceptible materials was 6.44~6.89 days.This study can provide a theoretical basis for identification of rust resistance and breeding of rust resistant varieties in peanut.

关 键 词：花生锈病 夏孢子 温度 侵染 病情指数 

分 类 号：S435.652[农业科学—农业昆虫与害虫防治] Q935[农业科学—植物保护]