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Acta Agron Sin ›› 2000, Vol. 26 ›› Issue (06): 769-776.

• ORIGINAL PAPERS • Previous Articles     Next Articles

Study on Pathologic Races and Virulence of Blast Fungus and Their Movement in japonica Rice-growing Region of Northern China

LEI Cai-Lin;WANG Jiu-Lin;JIANG Wan-Ru;LING Zhong-Zhuan   

  1. Institute of Crop Breeding and Cultivation, CAAS, Beijing 100081
  • Received:1999-11-02 Revised:2000-01-09 Online:2000-11-12 Published:2000-11-12
  • Contact: LEI Cai-Lin

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Abstract: The study of pathologic races of blast fungus Pyricularia grisea showed that rac es 337, 237, 003, 137 and 537 were dominant races in japonica rice-growing regio n of Northern China. Both the distribution of these dominant races and the genet ic diversity of pathogen populations in different rice-gr

Key words: Rice blast disease, Pathologic race, Virulenc e frequency, Resistance resources

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