马铃薯种质资源黑胫病抗性评价与抗病种质筛选
打开文本图片集
中图分类号：S532 文献标识码：A 文章编号：2095-5774（2025）02-0175-07
Resistance evaluation and resistant germplasm screening of potatoes against blackleg
Yi Miaomiao 1† ，LiHuawei 1，2† ，Bao Zongchao，Xu Yongqing²， Xu Guochun²，Luo Wenbin 2 JiRongchang²，Qiu Sixin²， Tang Hao²，Wang Mo4，Chen Fengpingl*
（1.CollegeofPlantProtection，Fujian Agricultureand ForestryUniversityFuzhou，Fujian 35ooo2，China; 2.InstituteofCrop Sciences;FujianAcademyofAgricultural Sciences，Fuzhou，Fujian35oo13，China; 3.College of PlantProtection，Yunnan Agriculture University，Kunming，Yunnan 6502O1， China; 4. College of Agriculture，Fujian Agricultrue and Forestry University，Fuzhou，Fujian 35ooO2， China）
Abstract：【Objective】In order to evaluate the resistance of potato germplasm resources against blackleg and screen disease-resistant germplasm，whichprovidesresistantmaterialsandtheoreticalbasis forresistance breedingand field diseasecontrol.【Method】Inthis study，in vitro tuberof 45potato germplasmresources were inoculatedand identified， theresistance of potato blackleg pathogens（Pectobacterium atrosepticum and P .parmentieri）were evaluated by optimizing the inoculationconditions.【Result】Theoptimized inoculation conditions of twopathogens were as follow：theculture temperature was 26% and the inoculation concentration was O.6～0.8 D600 .Among 45 tested germplasm resources，11 germplasm resources including 'Xinyihongpi' and'CIP392278.19' showed resistance to both P .atrosepticumPacl141and P.parmentier Ppxp3-1，accounting for 24.4% of tested potato germplasm resources.【Conclusion】 There are significant dierences intheresistanceof potatogermplasmresourcesagainst blackleg.Inthis study，11 potato germplasmesources were identifiedwith goodresistance totwo blackleg pathogens，which would provide basic materials forpotato resistance breeding and blackleg control.
Keywords：potato; blackleg; resistance evaluation;resistant germplasm; optimized inoculation conditions
马铃薯（SolanumtuberosumL.）是我国四大主要粮食作物之一，因其高产、适应性强，且宜良易菜，因此在保障国家粮食安全体系中具有重要的作用[1]。（剩余7691字）