马铃薯种质资源块茎晚疫病抗性鉴定  

Identification of Tuber Late Blight Resistance in Potato Germplasm Resources

作　　者：敖翔[1] 闵凡祥[2] 白雅梅[3] 吕文河[1] AO Xiang;MIN Fanxiang;BAI Yamei;LU Wenhe(College of Agronomy,Northeast Agricultural University,Harbin,Heilongjiang 150030,China;Virus-free Seedling Research Institute,Heilongjiang Academy of Agricultural Sciences,Harbin,Heilongjiang 150086,China;College of Resources and Environmental Sciences,Northeast Agricultural University,Harbin,Heilongjiang 150030,China)

机构地区：[1]东北农业大学农学院,黑龙江哈尔滨150030 [2]黑龙江省农业科学院植物脱毒苗木研究所,黑龙江哈尔滨150086 [3]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《中国马铃薯》2018年第5期257-265,共9页Chinese Potato Journal

基　　金：黑龙江省科技攻关计划项目(GC12B105);黑龙江省科技计划重大项目(GA15B102-03);黑龙江省马铃薯现代农业产业技术协同创新体系(HNWJZTX201701)

摘　　要：选育抗马铃薯晚疫病品种是防治晚疫病最为经济有效的方法。研究的目的是对利用国外种质资源创造的农艺性状优良且产量较高的马铃薯高世代无性系进行块茎晚疫病抗性评价。试验以‘荷兰15号’为感病对照,‘克新18号’为抗性对照,用5个不同菌株对13个马铃薯高世代无性系进行块茎晚疫病抗性评价。13个高世代无性系中,H17-54374受侵染面积最小(4.97%),H17-54071受侵染面积最大(75.15%)。5个菌株中,"超级毒力小种"MZ14-20致病力高于其他菌株,平均侵染面积为49.02%。筛选出晚疫病高抗材料1份(H17-54374),中抗材料2份(H17-44056和H17-54280)。选出的无性系可进一步进行田间试验,评价其田间块茎晚疫病抗性和块茎产量的表现。Breeding potato varieties for late blight resistance is the most economical and effective way to control late blight. The purpose of this research was to evaluate the resistance to tuber late blight of advanced potato clones with good agronomic characters and high yield created using foreign germplasm resources. Five different isolates were used to evaluate the resistance to tuber late blight of 13 advanced clones of potato with ＇Helan 15＇ as susceptible control and ＇Kexin 18＇ as resistant control. Among the 13 tested clones, H17-54374 had the smallest infection area （4.97%） and H17-54071 had the largest infection area （75.15%）. The pathogenicity of the super virulent isolate MZ14-20 was higher than that of other ones, with average infection area being 49.02%. One resistant clone （H17-54374） and two medium resistant clones （H17-44056 and H17-54280） were screened out for tuber late blight resistance. The selected clones could be further tested in the field to evaluate tuber late blight resistance and tuber yield.

关 键 词：马铃薯 晚疫病 块茎抗性 

分 类 号：S532[农业科学—作物学]