Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (34): 173-176.doi: 10.11924/j.issn.1000-6850.casb15050073

Special Issue: 园艺 农业生态

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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

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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