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中国农学通报 ›› 2015, Vol. 31 ›› Issue (34): 173-176.doi: 10.11924/j.issn.1000-6850.casb15050073

所属专题: 园艺 农业生态

• 植物保护 农药 • 上一篇    下一篇

大白菜品种对陕西省太白县根肿病的抗性鉴定

李 宁,赵利民,鱼昭君,陈红红,惠麦侠   

  1. (西北农林科技大学园艺学院/旱区作物逆境生物学国家重点实验室,陕西杨凌 712100)
  • 收稿日期:2015-05-14 修回日期:2015-06-25 接受日期:2015-07-13 出版日期:2015-12-17 发布日期:2015-12-17
  • 通讯作者: 惠麦侠
  • 基金资助:
    陕西省农业科技创新与攻关项目“优质、高产、多抗大白菜新品种选育及栽培技术研究”(2015NY103),“大白菜抗根肿病种质资源引进、创制及新品种选育”(2014k020201);西安市科技计划项目“大白菜新品种选育引进”(NC1204);唐仲英育种专项项目“大白菜新品种选育”。

Identification of Chinese Cabbage Cultivars’ Resistance to Clubroot Disease from Taibai County, Shaanxi Province

Li Ning, Zhao Limin, Yu Zhaojun, Chen Honghong, Hui Maixia   

  1. (College of Horticulture, Northwest A & F University/National Key Laboratory of Crop Stress Biology in Arid Areas, Yangling Shaanxi 712100)
  • Received:2015-05-14 Revised:2015-06-25 Accepted:2015-07-13 Online:2015-12-17 Published:2015-12-17

摘要: 为明确陕西省太白县塘口村大白菜根肿病发病区根肿菌的生理小种和大白菜品种对根肿病的抗性差异,采用Williams鉴别系统对采自塘口村的根肿病菌进行生理小种鉴定,采用室内人工接种和田间自然发病鉴定方法研究了32份大白菜品种对根肿病的抗性。结果表明,塘口区的大白菜根肿菌为7号生理小种。32个参试品种中有5个经大田和人工2种方法鉴定均表现免疫,其病情指数均为0,即‘百慕田CR-D25’、‘CR金将军’、‘CR金山’、‘CR兴春’和‘CR中联金宝’。这5个品种可作为塘口村抗根肿病主栽品种及育种中的抗源使用。

关键词: 霾, 霾, 湖北, 时空分布, 地形

Abstract: This study aims to clarify physiological races and the level of resistance to Plasmodiophora brassicae in Chinese cabbage cultivars. Williams system was used to identify the main physiological races of P. brassicae collected from main disease regions in Taibai County. The resistance of thirty two Chinese cabbage cultivars to clubroot disease was evaluated under field conditions in Taibai County and artificial inoculation conditions in greenhouse. The results indicated that the strain of pathogens was race 7 in this region. Five cultivars including ‘Baimutian’, ‘Jinjiangjun’, ‘Jinshan’, ‘Xingchun’ and ‘Zhonglianjinbao’ were resistant to race 7 in Taibai and the average disease index was zero. These cultivars could be used as predominant species and breeding materials in clubroot infected regions of Taibai in Shanxi Province.

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