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

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Evaluation of Three Early-Maturing Varieties of Italian Ryegrass (Lolium Multiflorum Lam.) on Forage Characteristics in Korea

국내 육성 이탈리안 라이그라스 조생종 3 품종의 품종특성 평가

  • Yowook Song (Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration) ;
  • Jae Hoon Woo (Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration) ;
  • Bo Ram Choi (Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration) ;
  • Sang-Hoon Lee (Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration) ;
  • Ki-Won Lee (Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration)
  • Received : 2023.06.22
  • Accepted : 2023.06.28
  • Published : 2023.06.30
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Abstract

This study was conducted in Cheonan of central region in South Korea to evaluate the forage characteristics of early-maturing Italian ryegrass (IRG) within September, 2021 to June, 2023. The three different varieties of Italian ryegrass were prepared in this study 'Kogreen', 'Kospeed' and 'Kowinearly'. The results of heading date in this study, 'Kogreen' was the earliest in among cultivars and recorded 24th of April, whereas 'Kowinearly' was recorded the latest. In case of plant length parameter, 'Kowinearly' was the highest, in addition lodge tolerance score 'Kowinearly' also superior in whole cultivars. The dry matter yield of 'Kowinearly' was recorded significantly the highest (11,027 kg/ha), in contrast 'Kospeed' was recorded significantly the lowest (8,455 kg/ha). As a result of ADF and NDF content 'Kospeed' was recorded excellent value as compared the other two cultivars. The CP content of this study was excellent in the order of 'Kospeed' > 'Kowinearly' > 'Kogreen'. In case of the monosaccharides content 'Kogreen' had relatively higher glucose and fructose content than other four cultivars, therefore the 'Kogreen' has advantage for preparing high quality of silage. In conclusion, among the three different early varieties of Italian ryegrass, 'Kowinearly' was the superior in forage productivity, 'Kospeed' was the highest in feed value and 'Kospeed' had the highest in glucose and fructose content.

Keywords

Acknowledgement

본 연구는 농촌진흥청 연구사업 (다수확 사료작물 신품종 개발 및 생산성 평가 PJ01669904)과 2022년도 농촌진흥청 국립축산과학원 전문연구원 과정 지원에 의해 이루어진 것임.

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