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 Characters and Productivity of Italian Ryegrass (Lolium multiflorum L.) New Variety 'Hwasan 104'

이탈리안 라이그라스 신품종 '화산 104호'의 생육특성과 수량성

  • Published : 2005.12.01
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Abstract

This experiment was carried out to breed the cold-tolerant variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Livestock Research Institute, RDA, Suwon from 1997 to 2002. Hwasan 104 as a tetraploid variety was dark green in leaf color and had semi-prostrate and medium growth habit in late autumn and early spring, respectively. Hwasan 104 was 19th May in heading date as a late-heading variety. Especially, Hwasan 104 was broader in flag leaf and longer 7 cm in plant length, and thicker in stem width than those of control variety, Hwasan 101. Cold tolerance of Hwasan 104 was better than that of Hwasan 101 registered as a cold-tolerant variety. Dry matter (DM) yield of Hwasan 104 was $5\%$ more than DM 9,348 kg/ha of Hwasan 101. In vitro dry matter digestibility and total digestible nutrient of Hwasan 104 were 74.3 and $63.1\%$ which are 3.3 and $1.5\%$ lower than those of Hwasan 101, respectively. Acid detergent fiber and neutral detergent fiber of Hwasan 104 were 32.6 and $55.8\%$ which are 1.9 and $2.4\%$ higher than those of Hwasan 101, respectively.

본 시험은 이탈리안 라이그라스 내한성 품종을 육성하기 위하여 1997년부터 2002년까지 축산기술연구소 초지사료과에서 수행되었으며, 이탈리안 라이그라스 신품종 "화산 104호"는 2002년 직무육성신품종선정심의회에서 명명되었다. "화산 104호"는 4배체 품종으로서 엽의 색은 농녹이며, 월동전 초형은 반부복형, 봄의 초형은 중간형이다. 특히, "화산 104호"는 "화산 101호" 보다 지엽의 폭과 길이가 넓고 길며, 초장이 105cm로 화산 101호 보다 7cm 정도 길고, 줄기의 두께는 화산 101호에 비하여 두꺼운 특성을 갖고 있다. 화산 104호의 내한성은 기존 내한성 품종인 화산 101호 보다 다소 강한 품종이었다. 화산 104호의 건물수량은 9,857 kg/ha로서 화산 101호 보다 $5\%$ 많았다. "화산 104호"의 사료가치는 in vitro 소화율이 $74.3\%$,가 소화양분 총량 (TDN)이 $63.1\%$로서 화산 101호보다 $1.5\%$ 낮고, 산성세제불용섬유(ADF)와 중성세제불용섬유(NDF)는 32.6 및 $55.8\%$로서 "화산 101호"보다 각각 1.9 및 $2.4\%$ 높았다.

Keywords

References

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