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 Forage Productivity of New Orchardgrass (Dactylis glomerata L.) Variety, 'Onnuri 2ho'

오차드그라스 신품종 '온누리 2호'의 생육특성과 수량성

  • Received : 2016.01.12
  • Accepted : 2016.03.14
  • Published : 2016.03.31
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Abstract

'Onnuri 2ho' is a new orchardgrass (Dactylis glomerata L.) variety developed by the National Institute of Animal Science (NIAS) in 2014. Four superior clones were selected and polycrossed for seed production to develop this new variety of orchardgrass. The agronomic growth characteristics and forage productivity of 'Onnuri 2ho' were examined at Cheonan from 2010 to 2011. Regional adaptation trials were conducted in Cheonan, Hoengseong, Jinju and Jeju from 2012 to 2014. 'Onnuri 2ho' showed growth habit of medium type in fall and spring. It is long in length of flag leaf with medium upper internode. Plant height of 'Onnuri 2ho' was 4 cm more than that of control variety, 'Amba'. Its heading date was 4 days later than compared to control variety, 'Amba'. Characteristics such as waterlogging and disease resistance of 'Onnuri 2ho' were stronger or better than those of control variety, 'Amba', Especially, the dry matter yield of 'Onnuri 2ho' (15,814 kg/ha) was increased 34 % compared to that of control variety, Amba (11,778 kg/ha). Nutritive feed values of 'Onnuri 2ho' appeared to be similar to that of control variety 'Amba' except in Vitro dry matter digestibility (IVDMD).

전국에서 수집된 생태형 오차드그라스 계통들 중 생육특성 및 내재해성이 우수한 4계통을 선발한 후 집단 교배하여 생산된 합성종자를 2008년 천안에서 생산력 검정시험을 수행하였으며, 2012년부터 2014년까지 3년 동안 천안, 횡성, 진주 및 제주지역에서 지역적응성 검정시험을 수행하였다. 2014년 직무육성 신품종 선정심의회에서 생육특성과 수량성이 우수한 합성 34호를 신품종 "온누리 2호"로 명명하였으며, 온누리 2호의 주요 특성을 요약하면 다음과 같다. 온누리 2호의 월동전 및 봄의 초형은 중간형이며, 잎은 담녹색이고, 출수기에 지엽 길이는 암바와 비슷하며, 상부 절간장은 중간이고 풍엽성이 양호하였다. 출수기는 5월 17일로 표준품종인 암바 보다 4일이 늦었으며, 출수기에 초장은 88 cm로서 암바 보다 4 cm 길었다. 내습성과 내병성은 온누리 2호가 암바에 비하여 비교적 강하였다. 온누리 2호의 ha당 건물수량은 15,814 kg으로 암바 보다 34% 많았고, 특히 제주지역에서 많았다. 온누리 2호의 건물소화율은 암바에 비해 높았으며 기타 사료가치는 암바와 비슷하였다. 이와 같이 온누리 2호는 다수성인 중생종 계통으로, 특히 습해 및 내병성에 강하고, 건물수량이 많은 품종으로 산지생태 축산용 초지 조성 및 조사료 생산을 위한 우수한 품종이다.

Keywords

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