A New Green-Kerneled Glutinous Rice Mutant Variety, "Nogwonchalbyeo" Developed by Gamma Ray Irradiation

녹색찰현미로 이용 가능한 "녹원찰벼"의 돌연변이 육종

  • Kang, Si-Yong (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Shin, In Chul (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kim, Dong Sub (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Lee, Geung-Joo (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kim, Jin-Baek (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Lee, Deok Yul (Chonbuk Agriculture Research and Extension Service) ;
  • Lee, Sang Young (Chungbuk Agriculture Research and Extension Service) ;
  • Lee, Dong Jin (School of Bio Resource Science, Dankook University)
  • 강시용 (한국원자력연구원 정읍 방사선과학연구소) ;
  • 신인철 (한국원자력연구원 정읍 방사선과학연구소) ;
  • 김동섭 (한국원자력연구원 정읍 방사선과학연구소) ;
  • 이긍주 (한국원자력연구원 정읍 방사선과학연구소) ;
  • 김진백 (한국원자력연구원 정읍 방사선과학연구소) ;
  • 이덕열 (전북농업기술원) ;
  • 이상영 (충북농업기술원) ;
  • 이동진 (단국대학교)
  • Received : 2008.08.05
  • Published : 2008.09.10

Abstract

We bred a new green-kerneled glutinous rice variety that can be cultivated in the whole area of Korea, because only one native green-kerneled glutinous rice cultivar, "Saengdongchalbyeo", has been cultivated in the southern coastal area due to its late heading. The seeds of "Saengdongchalbyeo" were irradiated with 200 Gy of gamma ray in 1995. A promising mutant variety, "Nogwonchalbyeo" ("Wonnong 17") was selected through line selection and regional yield trials. In particular, the new variety revealed at the earlier mid of August compared to that of "Saengdongchalbyeo", the early of September, and it was considerably tolerant to a field lodging due to its shortened culm length. Also, "Nogwonchalbyeo" had a higher ripened grain ratio and 1,000 grain weight compared to the original variety. The brown grain yield of the new variety was about 5.40 MT/ha, which was 11.3% higher than that of the original variety, in the regional yield trials at 3 different fields during 2000~2001. The brown and milled grains of the new rice variety contained 20 to 65% higher amount of total amino acids, respectively than that of the original and two checks. For chlorophyll -a, -b and total chlorophyll, the new variety showed nearly two-fold higher than the checks, and for the carotenoid, it had 5.3 - 7.6 times higher amount. These results showed that the new variety can be cultivated as a special green-kerneled glutinous rice with high functional compounds.

출수가 늦어 남해안 일부 지역에서만 재배되던 재래종 녹미(일명; 생동찰벼)를 개량하여 전국적으로 안전하게 재배할 수 있도록 신품종 "녹원찰벼"를 육성하였다. 생동찰벼의 종자에 감마선 200 Gy를 조사하여 $M_2$세대에서 출수가 빠르고 키가 작은 우량 계통을 선발하였다. 계통선발과 지역적응성 시험을 거쳐 유망계통 원농 17호(녹원찰벼)를 최종적으로 선발하여 품종등록하였다. 녹원찰벼는 생동찰벼와 비교하여 중부지방에서 이삭 피는 시기가 생동찰벼보다 15일정도 빠른 8월 17-20일경이었고 간장은 15 cm 정도 작은 91 cm이었다. 녹원찰벼의 현미 수량은 생동찰벼보다 10% 정도 증가하였다. 녹원찰벼의 백미 및 현미중의 아미노산 함량은 다른 대조 품종보다 10-60% 높았다. 엽록소 함량은 대조품종 신선찰벼 및 남평벼보다 비해 2배 높았다. 등숙기에 엽록소 소실이 늦어 녹색 현미 찹쌀로 이용이 가능하여, 일반 쌀에 섞거나 현미밥을 지으면 연한 황록색의 시각적인 효과와 고소하고 차진 특성이 있다. 병해충에도 강하여 앞으로 친환경 기능성 쌀로 이용확대가 기대된다.

Keywords

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