玉米自交系对轮枝镰孢菌穗腐病的抗性评价  

Evaluation of Maize Inbred Lines for Resistance to Fusarium verticillioides Ear Rot

作　　者：邹成佳[1] 崔丽娜[1] 章振羽[1] 张小飞[1] 李荣进 陈耕 李晓[1] ZOU Cheng-jia CUI Li-na ZHANG Zhen-yu ZHANG Xiao-fei LI Rong-jin CHEN Geng LI Xiao(Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management on Crops in Southwest, Ministry of Agriculture, P. R. China, Siehuan Chengdu 610066, China Seed Muhiplieation Farm of Xichang, Siehuan Xiehang 615000, China Plant Protection Station of Xichang, Siehuan Xichang 615000, China)

机构地区：[1]四川省农业科学院植保所,农业部西南作物有害生物综合治理重点实验室,四川成都610066 [2]西昌市良种场,四川西昌615000 [3]西昌市植保植检站,四川西昌615000

出　　处：《西南农业学报》2017年第6期1346-1349,共4页Southwest China Journal of Agricultural Sciences

基　　金：四川省国际合作计划项目(2014HH0067);四川省财政创新能力提升工程项目青年基金(2014QNJJ-009)

摘　　要：【目的】在我国西南玉米产区,轮枝镰孢菌穗腐病是一种常发性病害,对其最为经济有效的防治方法是选育抗性品种。【方法】本研究对114份引进的国外自交系,采用田间人工接种的方式,进行穗腐病抗性评价。【结果】表现为高抗的自交系仅1份,占0.9%,为CML490;抗性材料(R)23份,占20.2%;中抗材料(MR)49份,占43.0%;感病材料(S)28份,占24.6%;高感材料(HS)13份,占11.4%。【结论】供试材料中,中抗以上的种质资源占68.5%,说明国外引进的玉米自交系材料中存在丰富的抗源,可加大引进力度和筛选量,以筛选到优质的抗源。[ Objective ] Fusarium ear rot is a common occurrence in the southwest of China, and host resistance is the most commercial strategyto control the disease. [ Method ] In this study, the total of 114 maize inbred lines of Chengdu in field trial were evaluated for ear rot causedby Fusarium verticillioides. [ Result] Only one maize inbred line, namely CMIAgO, presented high-resistance to Fusarium ear rot, accountingfor 0.9 % , and 23 and 49 maize inbred lines were resistant and moderately-resistant to ear rot accounting for 20.2 % and 43.0 % , respec-tively. The other 41 maize inbred lines were susceptible or high-susceptible to Fusarium ear rot, accounting for 36.0 %. [ Conclusion ] 68.5 % evaluated maize inbred lines had resistance to ear rot （moderately-resistance, resistance and high-resistance）, which would introduceand evaluate more maize inbred lines to select the high-resistant lines.

关 键 词：玉米 玉米穗腐病 抗性评价 轮枝镰孢菌 

分 类 号：S516[农业科学—作物学]