논문 상세보기
pp.31-35
본 시험은 이탈리안 라이그라스 극조생종 품종을 육성하기 위하여 2006년부터 2014년까지 국립축산과학원 초지사료과에서 수행되었다. 이탈리안 라이그라스 신품종 그린팜 3호는 2배체 작물로 엽색은 녹색이며, 월동 전 초형은 반직립형, 봄의 초형은 직립형이다. 그린팜 3호는 4월 27일경에 출수하는 극조생종 품종이 또한, 그린팜 3호는 그린팜 보다 지엽폭이 0.5 mm가 좁고, 지엽 길이는 4.4 cm 길고, 출수기의 초장은 88 cm로 그린팜 보다 3 cm 정도 길다. 줄기 두께는 그린팜 보다 0.1 mm 굵고 이삭 길이는 그린팜 보다 4 cm 길다. 그린팜 3호의 건물수량은 8,976 kg/ha로서 그린팜과 대등하였다. 상대적 사료가치는 그린팜이 103.2인데 비해 그린팜 3호는 112.3으로 월등히 높고 in vitro 소화율이 70%, 가소화양분총량(TDN)이 64.1%로서 그린팜 보다 각각 2.9, 2.0% 높았고, 산성세제불용섬유 (ADF)와 중성세제불용섬유 (NDF)는 각각 31.47 및 53.3%로서 그린팜 보다 각각 2.5% 및 3% 낮았다.
This experiment was carried out to breed a very early-maturing variety of Italian ryegrass (Lolium multiflorum Lam.) in the Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Cheonan, Korea from 2012 to 2014. New variety “Greenfarm3ho“ is a diploid variety with a green leaf color, a semi-erect growth habit in late autumn/fall, and an erect growth habit in early spring. With a heading date of April 27, Greenfarm3ho was categorized as an early-maturing variety. Compared with the “Greenfarm“ control variety, Greenfarm3ho's flag-leaf width was narrower by 0.5 mm, its flag-leaf length was longer by 4.4 cm, and its plant length was longer by 3 cm; additionally, Greenfarm3ho's stem thickness was 0.1 mm thicker and it showed winter hardiness. The dry matter (DM) yield (8,976 kg/ha) of Greenfarm3ho was similar to that of Greenfarm. The in vitro dry matter digestibility (IVDMD), total digestible nutrient (TDN), and crude protein (CP) of Greenfarm3ho were 70.0%, 64.1%, and 1.0%, respectively, which are higher than those of Greenfarm by 2.9%, 2.0%, and 1.4%, respectively. The acid detergent fiber (ADF) and neutral detergent fiber (NDF) content of Greenfarm3ho were 31.4% and 53.3%, respectively, which are lower than those of Greenfarm by 2.5% and 3.0%, respectively.
