A Very Early-Maturing, Cold Tolerant and High Quality japonica Rice Variety 'Hanseol'

극조숙 고품질 내냉성 벼 신품종 '한설'

  • 이정희 (농촌진흥청 국립식량과학원) ;
  • 신영섭 (농촌진흥청 국립식량과학원) ;
  • 정오영 (농촌진흥청 국립식량과학원) ;
  • 김명기 (농촌진흥청 국립식량과학원) ;
  • 김연규 (농촌진흥청 국립식량과학원) ;
  • 김홍열 (농촌진흥청 국립식량과학원) ;
  • 이점호 (농촌진흥청 국립식량과학원) ;
  • 이정일 (농촌진흥청 국립식량과학원) ;
  • 조영찬 (농촌진흥청 국립식량과학원) ;
  • 전용희 (농촌진흥청 국립식량과학원) ;
  • 최용환 (농촌진흥청 국립식량과학원) ;
  • 양창인 (농촌진흥청 국립식량과학원) ;
  • 홍하철 (농촌진흥청 국립식량과학원) ;
  • 원용재 (농촌진흥청 국립식량과학원) ;
  • 신진철 (농촌진흥청 국립식량과학원) ;
  • 김형윤 (농촌진흥청 국립식량과학원) ;
  • 서대하 (농촌진흥청 국립식량과학원) ;
  • 황흥구 (농촌진흥청 국립식량과학원) ;
  • 예종두 (농촌진흥청 국립식량과학원)
  • Received : 2010.06.09
  • Published : 2010.12.31

Abstract

'Hanseol' is a new very early-maturing, cold tolerant and high quality japonica rice variety developed from a cross of 'Jinbu24' and 'Jinbu25' by the rice breeding team of National Institute of Crop Science (NICS), Rural Development Administration (RDA) in 2009. The heading date of this variety is July 25, which is four days earlier than check variety, 'Jinbubyeo'. 'Hanseol' has 65 cm of culm length, 99 spikelets per panicle, 82.9% of ripened grain rate, and 21.5 g of 1,000 grain-weight of brown rice. This variety shows susceptibility to bacterial leaf blight and virus diseases, and insect pests. It is tolerant to cold stress in terms of less heading delay and high fertility in cold water irrigated cultivation. This variety shows delayed leaf senescence and considerable tolerance to viviparous germination at ripening stage. The milled rice of this variety exhibits translucent, clear non-glutinous endosperm and medium-short grain. 'Hanseol' showed low gelatinization temperature and 6.1% protein content, 19.1% amylose content and good palatability of cooked rice. The milled rice yield of this variety is about 5.43 MT/ha at ordinary culture in local adaptability test for three years. 'Hanseol' would be highly adaptable to mid-north and mid-mountainous areas, and mid-northern alpine area in Korea.