油菜根肿病抗性资源的筛选鉴定  

Screening and Identification of Oilseed Rape Germplasm Resources Resistant to Clubroot

作　　者：祝腾辉 刘奇颀 余格辉 喻白鹏 郑永昕 杨帆 张岳平 ZHU Teng-hui;LIU Qi-qi;YU Ge-hui;YU Bai-peng;ZHENG Yong-xin;YANG Fan;ZHANG Yue-ping(Yueyang Institute of Agricultural Sciences,Yueyang 414000,PRC)

机构地区：[1]岳阳市农业科学研究院,湖南岳阳414000

出　　处：《Agricultural Science & Technology》2023年第2期30-35,共6页农业科学与技术（英文版）

基　　金：湖南省现代农业产业(油菜)技术体系项目(2019-2023)。

摘　　要：为探明不同油菜品种根肿病抗性,筛选抗根肿病的种质资源。采取根部注射接种方法,对29个油菜品种的根肿病抗性进行鉴定。结果表明:29个品种的平均病情指数为79.98,平均发病率为89.60%;中感品种仅2个,为湘杂油631和华早291,其病情指数分别为29.67和47.73;其余均为高感品种。因此,湘杂油631和华早291可在湖南岳阳地区做油菜根肿病抗病品种选育的备选材料。Clubroot is a soil-borne disease caused by Plasmodiophora brassicae,which mainly harms cruciferous crops.Breeding or screening disease-resistant varieties is an economical and safe way to control clubroot.In this study,root injection method was employed to identify the resistance of 29 oilseed rape varieties to clubroot.The disease indices and incidence of clubroot in the oilseed rape varieties were calculated and compared.The results showed that the 29 varieties presented the average disease index of 79.98 and the average incidence of 89.60%.Two out of the 29 varieties showed moderate susceptibility,being 'Xiangzayou 631' and 'Huazao 291',with the disease indices of 29.67 and 47.73,respectively.The rest varieties were highly susceptible to this disease.The findings provided alternatives for the breeding of oilseed rape varieties with resistance to clubroot in Yueyang,Hunan.

关 键 词：油菜 根肿病 筛选 

分 类 号：S435.654[农业科学—农业昆虫与害虫防治]