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

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Growth characteristics and Productivity of Italian Ryegrass (Lolium multiflorum Lam.) New Variety, 'Green Call'

이탈리안 라이그라스 신품종 '그린콜'의 생육특성과 수량성

  • Received : 2018.08.23
  • Accepted : 2018.09.17
  • Published : 2018.12.31
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Abstract

This experiment was carried out to breed a very early maturing variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Cheonan from 2015 to 2017. New variety of Ryegrass, 'Green Call' is a diploid variety with green in leaf color and has semi-erect growth habit in late autumn and erect growth habit in early spring, 'Green Call' was on April 25 in heading date as a early-maturing variety. Also 'Green Call' was narrower by 2 mm in flag leaf width, longer by 1.3 cm in flag leaf length and shorter by 5 cm in plant height than those of control variety, 'Florida 80', respectively. 'Green Call' was also thicker by 0.14 mm in stem thickness and strong in winter hardness. Dry matter (DM) yield (11,592 kg/ha) of 'Green Call' was similar to that of 'Florida 80'. Total digestible nutrient (TDN), crude protein (CP) and relative feed value (RFV) of 'Green Call' were 60.8, 10.3 and 96.7 % which are 2.1, 1.1, 6.9 % higher than those of 'Florida 80', respectively. Acid detergent fiber (ADF) and neutral detergent fiber (NDF) of 'Green Call' were 35.5 and 58.9 % which are 2.7 and 2.3 % lower than those of 'Florida 80', respectively.

본 시험은 추위에 강하고 생산성이 우수한 이탈리안 라이그라스 품종을 육성하기 위하여 2009년부터 2017년까지 국립축산과학원 초지사료과에서 수행되었다. 이탈리안 라이그라스 신품종 그린콜은 2배체 작물로 엽색은 녹색이며, 월동 전 초형은 반직립형, 봄의 초형은 직립형이다. 그린콜은 4월 25일경에 출수하는 극조생종 품종이고 지엽폭이 8 mm, 지엽 길이는 24.9 cm 이며, 출수기의 초장은 96 cm로 플로리다 80호 보다 5 cm 정도 짧다. 줄기 두께는 플로리다 80호 보다 0.14 mm 굵고 이삭 길이는 플로리다 80호와 대등하다. 그린콜의 건물수량은 11,592 kg/ha로서 대조품종인 플로리다 80호에 비하여 약간 높았다. 상대적 사료가치는 그린콜이 96.7인데 비해 수입종인 플로리다 80호는 89.8로 다소 높고 가소화양분총량 (TDN)이 60.8 %로서 플로리다 80호에 비해 2.1% 높았고, 산성세제불용섬유 (ADF)와 중성세제불용섬유 (NDF)는 각각 35.5 및 58.9 %로서 대조 품종 보다 약간 낮았다.

Keywords

References

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