摘要
明确江西省油菜根肿病病菌类型及油菜品种对病害的抗性,对指导油菜生产及景区观光业的发展具有重要意义。为了探明油菜根肿病的分布及其病菌的致病性分化,于2011年至2016年持续对江西省油菜根肿病的地理分布进行调查,并对病区油菜根肿病株进行生理小种鉴定。结果表明,江西油菜根肿病主要分布在赣东北局部区域,致病菌为4号和9号生理小种,其中4号小种仅发现在赣东北区域分布。在4号和9号小种的病区分别设置田间病圃进行200余个油菜品种的抗性鉴定,结果表明,测试的全部油菜品种对9号小种表现抗病,而94.74%油菜品种对4号小种表现感病;萝卜籽花和59-013等12个品种对4号小种具中抗以上水平。本研究筛选到生理小种特异性的抗病资源或品种,可为油菜抗根肿病育种提供抗源。
To improve production of rapeseed and development of scenic spots in Jiangxi Province,distribution of rape clubroot (by Plasmodiophora brassicae) and its pathogenic differentiation had been investigated from 2011 to 2016.Results showed that the disease was mainly distributed in the local area of northeast Jiangxi.Race 4 and 9 of P.brassicae in the clubroot rape were collected in different years.Identification showed that Race 4 was only found in the northeast of Jiangxi.More than 200 rape cultivars and lines were artificial inoculated in fields of disease nurseries.Results showed that all materials were resistant to Race 9,but 94.74% were susceptible to Race 4.Only 12 varieties,including Luobozihua and 59-013,showed medium resistance to Race 4.These results supplied race-specific resistant resources for breeding.
作者
黄蓉
胡建坤
黄瑞荣
华菊玲
檀根甲
丁云花
刘甫祥
HUANG Rong;HU Jian-kun;HUANG Rui-rong;HUA Ju-lin;TAN Gen-jia;DING Yun-hua;LIU Fu-xiang(Institute of Plant Protection,Jiangxi Academy of Agricultural Science,Nanchang 330200,China;School of Plant Protection,Anhui Agricultural University,Hefei 230036,China;Plant Protection Station,Agriculture Bureau of Longnan County,Ganzhou 341700,China)
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2019年第4期604-613,共10页
Chinese Journal of Oil Crop Sciences
基金
国家公益性行业(农业)科研专项(201003029)
江西省科研院所基础设施配套项目(20151BBA13034)
江西省重点研究计划(20161ACF60015)
江西省科技支撑计划(20151BBF60068)
关键词
油菜
景区观光
根肿菌
小种鉴定
抗性分析
rape
scenic spots
Plasmodiophora brassicae
race identification
resistance analysis
