Classification of Korean Rice Cultivars based on Reaction Pattern to Japanese Isolates of Blast Pathogen

  • Jin, Xuan-Ji (Division of Plant Sciences & Resources, Chungnam National University) ;
  • Lee, Eun-Jeong (Division of Plant Sciences & Resources, Chungnam National University) ;
  • Choi, Jae-Eul (Division of Plant Sciences & Resources, Chungnam National University)
  • Published : 2007.03.31

Abstract

Classification of blast resistance type of 129 Korean rice cultivars was carried out based on reaction pattern to 10 Japanese blast pathogen isolates(Pyricularia oryzae). The cultivars were divided into 11 groups based on the presumed resistance genes as follows; Pia type(19 cultivars), Pita-2 type(4), Pik type(3), Pib type(5), Piz type(11), Pik-s type(8), Pik and Pii type(4), Pia and Pita type(8), Pia and Pik type(6), Pita, Pik and Pii type(4) and no-grouping type(57). These results would provide important information to rice breeding for durable and broad resistance to rice blast.