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Identification of Physiological Race of Plasmodiophora brassicae in Yunnan
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LIU Feng,ZHANG Li-hui,JI Guang-hai * |
College of Plant Protection, Yunnan Agricultural University, Kunming 650201, Yunnan, China |
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Abstract We used 4 differential species of Williams A system to identify the main physiological
races of pathogens from 42 samples in Yunnan Province and 13 samples from Tibet Autonomous Region
suffered from Cruciferous vegetables clubroot.The results showed that 9 physiological races were
identified from Yunnan samples.They were NO.1,NO.2,NO.4,NO.6,NO.7,NO.10,NO.11,
NO.12 and NO.13.Four physiological races were identified from Tibet samples. They were NO.2,
NO.4,NO.5 and NO.7,among which NO.4 was advantages physiological race in these 2 areas,taking
61.9% and 53.8% of the samples, respectively.
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Received: 05 May 2013
Published: 30 June 2013
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