An Early-Maturing, Blast Resistant and High Quality Rice Cultivar "Pyeongwon"

벼 조생 단간 내도열병 고품질 신품종 "평원"

  • 유해영 (농촌진흥청 국립식량과학원) ;
  • 전용희 (농촌진흥청 국립식량과학원) ;
  • 정국현 (농촌진흥청 국립식량과학원) ;
  • 신영섭 (농촌진흥청 국립식량과학원) ;
  • 황흥구 (농촌진흥청 국립식량과학원) ;
  • 김홍열 (농촌진흥청 국립식량과학원) ;
  • 김명기 (농촌진흥청 국립식량과학원) ;
  • 정오영 (농촌진흥청 국립식량과학원) ;
  • 원용재 (농촌진흥청 국립식량과학원) ;
  • 김연규 (농촌진흥청 국립식량과학원) ;
  • 양창인 (농촌진흥청 국립식량과학원) ;
  • 이점호 (농촌진흥청 국립식량과학원) ;
  • 이정일 (농촌진흥청 국립식량과학원) ;
  • 이정희 (농촌진흥청 국립식량과학원) ;
  • 최윤희 (농촌진흥청 국립식량과학원) ;
  • 양세준 (농촌진흥청 국립식량과학원) ;
  • 안억근 (농촌진흥청 국립식량과학원)
  • Received : 2009.06.28
  • Published : 20090600

Abstract

'Pyeongwon' is a new japonica rice cultivar which is developed from a cross between Jinbu19 and Samjiyeon4 from North Korea by the rice breeding team of National Institute of Crop Science, RDA. Pyeongwon has about 107 days duration from seeding to heading in mid-northen plain, alpine, north-eastern coastal and southern alpine areas. It has about 67 cm culm length and tolerance to lodging. Pyeongwon has 13 tillers per hill and 82 spikelets per panicle. It showed tolerance to heading delay and spikelet sterility due to cold treatment similar to Odaebyeo. It also showed slow leaf senescence and moderate tolerance to viviparous germination during the ripening stage. Pyeongwon has resistance to blast disease but susceptible to stripe virus and brown planthopper. Milled rice of Pyeongwon has translucent kernels, relatively clear non-glutinous endosperm and medium short grain. It is characterized as a low gelatinization temperature and slightly lower amylose content (17.1%) variety compared to Odaebyeo (19.5%) and has good palatability of cooked rice. The milled rice yield performance of this cultivar was about 5.28 MT/ha by ordinary culture in local adaptability test for three years. This cultivar may be highly adaptable to the mid-northen plain, alpine, north-eastern coastal and southern alpine areas of Korea.