Journal of The Korean Society of Grassland and Forage Science (한국초지조사료학회지)

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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An Early-Maturing and High-Biomass Tetraploid Rye (Secale cereale L.) Variety 'Daegokgreen' for Forage Use

조생 다수성 조사료용 4배체 호밀 '대곡그린'

  • Ku, Ja-Hwan (Central Area Crop Breeding Div., National Institute of Crop Science) ;
  • Han, Ouk-kyu (Dept. of Food Crops, Korea National College of Agriculture and Fisheries) ;
  • Oh, Young-Jin (Seeds Production Team, Foundation of Agri, Tech, Commercialization and Transfer) ;
  • Park, Tae-Il (Wheat Research Team, National Institute of Crop Science) ;
  • Kim, Dae-Wook (Crop Production & physiology Div., National Institute of Crop Science) ;
  • Kim, Byung-Joo (Central Area Crop Breeding Div., National Institute of Crop Science) ;
  • Park, Myoung Ryoul (Central Area Crop Breeding Div., National Institute of Crop Science) ;
  • Ra, Kyung-Yoon (Central Area Crop Breeding Div., National Institute of Crop Science)
  • 구자환 (농촌진흥청 국립식량과학원 중부작물과) ;
  • 한옥규 (국립한국농수산대학교 식량작물학과) ;
  • 오영진 (농업기술실용화재단 종자생산팀) ;
  • 박태일 (농촌진흥청 국립식량과학원 밀연구팀) ;
  • 김대욱 (농촌진흥청 국립식량과학원 작물재배생리과) ;
  • 김병주 (농촌진흥청 국립식량과학원 중부작물과) ;
  • 박명렬 (농촌진흥청 국립식량과학원 중부작물과) ;
  • 라경윤 (농촌진흥청 국립식량과학원 중부작물과)
  • Received : 2020.10.04
  • Accepted : 2020.11.02
  • Published : 2020.12.31
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Abstract

A winter forage tetraploid rye (Secale cereale L.) cultivar, 'Daegokgreen', was developed at the Department of Central Area Crop Science, NICS, RDA in 2016. The mutant line 'CG11003-8-B', which was induced from rye cultivar 'Gogu' (diploid) by colchicine treatment, was selected for its excellent agronomic performance and was placed in preliminary yield trials for one year, 2013. The line was designated "Homil59" and was tested for regional yield trials at the four locations in Korea from 2014 to 2016. Finally, the new cultivar was named as the 'Daegokgreen' (grant number 8274). The leaf of cultivar 'Daegokgreen' is wide, long and dark-green color. The cultivar also has a big-size grain with light-brown color. The heading date of cultivar 'Daegokgreen' was April 17 which was 2 days later than that of check cultivar 'Gogu'. The tolerance to cold and wet injury, and resistance to powdery mildew and leaf rust of the new cultivar were similar to those of the check cultivar but the resistance to the lodging of the new cultivar was stronger than that of the check. The average roughage fresh and dry matter yield of the new cultivar after 10 days from heading were 37.0 and 7.7 MT ha-1, respectively, which were similar to those (38.4 and 8.0 MT ha-1) of the check cultivar. The roughage quality of 'Daegokgreen' was higher in crude protein content (8.9%) than that of the check cultivar (7.9%), while was similar to the check in total digestible nutrients (56.9%). This cultivar is recommended for fall sowing forage crops at all of crop cultivation areas in Korea.

국립식량과학원에서 국내 환경에 적합한 조사료용 4배체 호밀품종을 개발하기 위하여 2010년에 백체가 출현한 곡우호밀 최아종자와 2엽기에 도달한 유식물체에 콜히친을 처리하여 4배체로 검정된 계통 중 초형, 숙기 및 수량성 등에서 우수한 'CG11003-8-B'을 3년에 걸쳐 선발하였다. 2013년에 생산력검정시험을 실시한 결과 조숙성이고 조사료 생산성이 높아 '호밀59호'로 계통명을 부여하고, 2014년부터 3년간 전국 4개 지역에서 지역적응성을 검정한 결과 조사료 수량 뿐만 아니라 내도복 등 내재해성이 높은 것으로 나타나 2016년 직무육성신품종 선정위원회에서 신품종으로 선정되어 '대곡그린'으로 명명되었다. 출수가 완료된 시기의 '대곡그린'의 초형은 직립이고, 엽색은 진녹색이며, 잎 길이는 길고, 엽폭은 넓은 편이다. 성숙한 시기의 줄기는 황갈색으로 중간 정도의 굵기이며, 종실은 연갈색이고, 크기가 대립이다. '대곡그린'의 출수기는 4월 17일로 표준품종인 '곡우' 보다 2일 늦다. 출수 후 10일경 초장은 138cm로 '곡우'와 비슷하였다. 내한성은 '곡우'와 같은 수준이며, 도복은 '곡우' 보다 강하였고 습해와 병해는 발생하지 않았다. '대곡그린'의 생초수량은 ha당 37.0톤(곡우 38.4톤), 건물수량은 평균 7.7톤(곡우 8.0톤)으로 '곡우' 보다 약간 적었으나 통계적 유의성은 없었다. '대곡그린'의 조단백질 함량은 8.9%로서 '곡우' 보다 1.0%포인트 높았으며, TDN은 56.9%로 '곡우'(57.1%)와 비슷한 수준이었다.

Keywords

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