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

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Comparative Analysis of Forage Characteristics in Six Medium Maturing of Italian Ryegrass (Lolium multiflorum Lam.) Varieties in Korea

국내 육성 이탈리안 라이그라스 중생종 6 품종의 품종특성 평가

  • Chang-Woo Min (Grassland and Forage Division, National Institute of Animal Science, RDA) ;
  • Jae Hoon Woo (Grassland and Forage Division, National Institute of Animal Science, RDA) ;
  • Bo Ram Choi (Grassland and Forage Division, National Institute of Animal Science, RDA) ;
  • Eun-A Lim (Relocation Service Team for Department of Animal Resources Development, National Institute of Animal Science, RDA) ;
  • Ki-Won Lee (Grassland and Forage Division, National Institute of Animal Science, RDA)
  • 민창우 (국립축산과학원 초지사료과) ;
  • 우제훈 (국립축산과학원 초지사료과) ;
  • 최보람 (국립축산과학원 초지사료과) ;
  • 임은아 (국립축산과학원 축산자원개발부이전추진팀) ;
  • 이기원 (국립축산과학원 초지사료과)
  • Received : 2024.06.20
  • Accepted : 2024.06.26
  • Published : 2024.06.30
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Abstract

This study was conducted in Cheonan, the middle region of South Korea, to evaluate the forage characteristics of six medium maturing Italian ryegrass varieties: 'Kowinmaster', 'IR 601', 'IR 602', 'IR 603', 'IR 604' and 'IR 605'. In growth characteristics, 'Kowinmaster' exhibited the earliest heading date on April 30, while 'IR 601' exhibited the latest on May 17. 'IR 601' exhibited the highest lodging resistance, and all varieties demonstrated excellent disease resistance, waterlogging tolerance, and cold tolerance. 'IR 603', 'IR 604', and 'IR 605' demonstrated above-average plant length, with 'IR 604' reaching the longest at 114.8 cm. In productivity, 'IR 602' and 'IR 605' produced the highest total dry matter yield, each exceeding 12,800 kg/ha. Regarding feed values, 'Kowinmaster' recorded the highest RFV and TDN at 119.18 and 66.07%, respectively, with 'IR 605' exhibiting the second highest. 'IR 604' and 'IR 601' demonstrated crude protein concentrations over 9%, with 'IR 604' exhibiting the highest at 9.74%. Analysis of monosaccharide content in Italian ryegrass revealed that 'IR 605' exhibited the highest glucose and fructose content at 23.35 g/kg and 50.70 g/kg, respectively. In summary, 'IR 602' exhibited the highest productivity, 'Kowinmaster' recorded the highest feed value, and 'IR 605' exhibited the highest glucose and fructose content. Therefore, 'IR 605' is considered the most outstanding variety due to its superior productivity, second highest feed value, and significant monosaccharide content.

본 연구는 국내 육성 이탈리안 라이그라스 중생종 6 품종의 특성을 비교하기 위하여 대한민국의 중부지역인 충청남도 천안시에 위치한 국립축산과학원 시험포장에서 실시하였다. 이탈리안 라이그라스 중생종 품종의 출수기는 '코윈마스터'가 4월 30일로 가장 빨랐으며, '아이알 601'이 5월 17일로 가장 늦었다. 내도복성은 '아이알 601'이 가장 우수하였으며, 내병성, 내습성, 내한성은 모든 품종이 우수하였다. 초장은 '아이알 603', '아이알 604' 그리고 '아이알 605'가 평균 이상이었으며, 특히 '아이알 604'가 114.8 cm로 가장 길었다. 총 건물수량은 '아이알 602'와 '아이알 605'가 12,800 kg/ha 이상으로 가장 많은 그룹으로 나타났다. 사료가치 분석 결과, RFV와 TDN는 '코윈마스터'가 각각 119.18 및 66.07%로 가장 높았고, '아이알 605'가 두 번째로 높은 그룹에 속하였다. 조단백질 함량은 '아이알 604'와 '아이알 601'이 9% 이상으로 나타났으며, 특히 '아이알 604'가 9.74%로 가장 우수하였다. 이탈리안 라이그라스의 단당류 함량 분석결과 '아이알 605'은 포도당과 과당이 각각 23.35 g/kg 및 50.70 g/kg로 다른 품종과 비교하여 함량이 매우 높았다. 이상의 결과를 종합해보면, 이탈리안 라이그라스 국내 육성 중생종 6 품종 중 생산성은 '아이알 602'가 가장 높았고, 사료가치는 '코윈마스터'가 가장 우수한 것으로 나타나며, 포도당과 과당 함량은 '아이알 605'이 가장 높은 것으로 나타났다. 따라서, '아이알 605'의 경우 생산성이 가장 우수한 그룹에 속하며, 사료가치가 두 번째로 높은 그룹에 속하면서, 단당류의 함량이 검출된 모든 항목에서 가장 우수하였기 때문에, 국내 육성 중생종 6 품종 중 가장 우수한 품종으로 판단된다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 연구사업(다수확 사료작물 신품종 개발 및 생산성 평가, PJ01669904)과 2024년도 농촌진흥청 국립축산과학원 전문연구원 과정 지원에 의해 이루어진 것임.

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