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 New Orchardgrass (Dactylis glomerata L.) Cultivar, 'Luckyone 2ho'

오차드그라스 신품종 '럭키원 2호'의 생육특성과 수량성

  • Received : 2020.02.11
  • Accepted : 2020.03.09
  • Published : 2020.03.31
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Abstract

'Luckyone 2ho' is a new orchardgrass (Dactylis glomerata L.) cultivar developed by the National Institue of Animal Science (NIAS) in 2017. To develope the new variety of orchardgrass, 5 superior clones were selected and polycrossed for seed production. The agronomic growth characteristics and forage productivity of 'Luckyone 2ho' were examined at Cheonan from 2012 to 2014, and regional trials were conducted in Cheonan, Pheonchang, Jinju and Jeju from 2015 to 2017, respectively. 'Luckyone 2ho' showed medium type growth habit in fall, and medium in length of flag leaf and very long upper internode. Plant height of 'Luckyone 2ho' was 3 cm less than that of standard cultivar, 'Potomac' and heading date was 1 days later than 5th May compared to standard cultivar, 'Potomac'. Characteristics such as waterlogging and disease resistance of 'Luckyone 2ho' were stronger or better than those of standard cultivar, 'Potomac', Especially, dry matter yield of 'Luckyone 2ho'(15,980 kg/ha) increased 9 % compared to that of standard cultivar, 'Potomac'(14,702 kg/ha). Nutritive values were appeared to be similar in both varieties except in Vitro dry matter digestibility(IVDMD) and crude protein and total digestible nutrients (TDN).

전국에서 수집된 생태형 오차드 그라스 계통들 중 생육특성 및 내재해성이 우수한 계통을 선발하여 육성된 5계통을 집단 교배(polycross)하여 생산된 합성계통을 '합성37호'라 하였다. 이 계통을 2012년 천안에서 생산력 검정시험을 수행하였고, 2015년부터 2017년까지 3년 동안 지역적응성 검정시험을 천안, 평창, 진주 및 제주 등 4지역에서 생육특성 및 수량성을 조사하였다. 2017년 직무육성 신품종 선정심의회에서 생육특성과 수량성이 우수한 '합성 37호'를 신품종 '럭키원 2호'로 명명하였다. '럭키원 2호'의 주요 특성을 요약하면 다음과 같다. '럭키원 2호'의 월동전 초형은 중간형이며, 엽은 녹색이고, 출수기에 지엽 길이는 포트맥 보다 약간 길며, 상부 절간장은 매우 길고 (60.2cm), 풍엽성이 양호하였다. 출수기는 5월 5일로 조생종 품종으로 표준품종인 포트맥 보다 1일이 늦으며, 출수기에 초장은 95 cm로서 포트맥 보다 3 cm 짧았다. 내습성은 '럭키원 2호'가 포트맥에 비하여 비교적 강하였으며, 녹병은 럭키원 2호가 포트맥 보다 약간 강한 편 이었다. '럭키원 2호'의 ha당 건물수량은 15,980 kg으로 포트맥 보다 9 % 많았고, 특히 평창지역에서 증수하였다. '럭키원 2호'의 건물 소화율은 포트맥에 비해 높았으며 조단백질이 10 %로 약간 높았다. 이상의 결과를 요약하면 '럭키원 2호'는 다수성인 조생종 계통으로, 습해 및 내병성에 비교적 강하고, 특히 건물수량이 높은 품종으로 산지생태 축산용 초지 조성 및 조사료 생산을 목적으로 재배 시에 유리한 품종으로 사려된다.

Keywords

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