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Evaluation of Five Forage Rice Cultivars for Salinity Tolerance at the Seedling Stage and Cultural Practice in a Double-cropping Reclaimed Paddy

사료벼 5 품종의 발아와 유묘 내염성 및 간척지 이모작 논에서의 생육 평가

  • Sung, Pil-Mo (Department of Crop Science and Biotechnology, Chonbuk National University) ;
  • Yun, Sun-Woong (Department of Crop Science and Biotechnology, Chonbuk National University) ;
  • Song, Eun-Ji (Department of Crop Science and Biotechnology, Chonbuk National University) ;
  • Lee, Su-Hwan (National Institute of Crop Science, RDA) ;
  • Cho, Jin-Woong (College of Agricultural and Life Sciences, Chungnam National University) ;
  • Chung, Nam-Jin (Department of Crop Science and Biotechnology, Chonbuk National University)
  • 성필모 (전북대학교 농업생명과학대학 작물생명과학과 대학원) ;
  • 윤선웅 (전북대학교 농업생명과학대학 작물생명과학과 대학원) ;
  • 송은지 (전북대학교 농업생명과학대학 작물생명과학과 대학원) ;
  • 이수환 (국립식량과학원) ;
  • 조진웅 (충남대학교 농업생명과학대학) ;
  • 정남진 (전북대학교 농업생명과학대학 작물생명과학과)
  • Received : 2020.10.09
  • Accepted : 2020.11.12
  • Published : 2020.12.01

Abstract

In this study, we evaluated the salinity tolerance of five forage rice cultivars (Mogwoo, Mogyang, Miwoo, Jowoo, and Yeongwoo) with respect to germination, seedling growth, productivity, and feed values in a reclaimed paddy field in Muan, Korea. We found that the cultivars Mogwoo, Miwoo, Jowoo, and Yeongwoo showed normal germination and seedling growth, even at saline concentrations of between 0.1% and 0.5%, whereas in contrast, there were significant reductions in the germination and seedling growth of Mokyang with an increase in salt concentration. Among the five cultivars assessed, the seedling growth of Mogwoo and Yeongwoo was relatively higher at different salt concentrations in hydroponic and sand cultivation. Furthermore, cultivation of the five cultivars in the reclaimed paddy field with an initial salt concentration of 0.3% revealed that Yeongwoo was relatively superior in terms of yield and feed value. In conclusion, the germination and early growth of Yeongwoo were relatively good at high salt concentrations, and the yield and forage value of this cultivar in a reclaimed paddy field were also relatively superior to those of the other assessed varieties.

본 연구는 국내에서 최근에 육성된 사료용 벼 5 품종(목우, 목양, 미우, 조우, 영우)의 염농도에 따른 발아와 초기생육 특성, 그리고 간척지 논에서의 생산성 및 사료가치를 검토하고자 실시하였다. 사료벼 종자의 발아율과 유묘 생장량은 목양 품종을 제외한 목우, 미우, 조우, 영우 품종은 0.1~0.5% 염수에서도 정상적인 범위에 있었다. 수경과 사경재배로 시험한 염농도에 따른 사료벼의 초기 생육은 목우벼와 영우벼가 다른 3품종에 비하여 상대적으로 높은 생장량을 보였다. 그리고 초기 염농도가 0.3%인 무안 간척지 논에서 사료벼 5 품종을 재배한 결과, 사료벼 5품종 중 영우벼가 수량과 사료가치 면에서 상대적으로 우수하였다. 결론적으로, 영우벼가 높은 염농도에서의 발아율과 초기 생육이 양호하였고, 간척지 논에서의 수량과 사료가치도 다른 품종에 비하여 상대적으로 우수하였다.

Keywords

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