전국에서 1978년부터 1992년까지 수집된 생태형 오차드 그라스 계통들 중 생육특성 및 내재해성이 우수한 5 계통을 집단 교배하여 생산된 합성종자를 2005년부터 2006년까지 천안에서 생산력 검정시험이 수행되었고, 2009년부터2011년까지 3년 동안 지역적응성 시험으로 천안, 평창, 진주 및 제주지역에서 생육특성 및 수량성을 조사하였다.2011년 직무육성 신품종 선정심의회에서 생육특성과 수량성이 우수한 합성 28호를 신품종 “온누리”로 명명하였다. 온누리의 주요 특성을 요약하면 다음과 같다. 온누리의 월동 전 및 봄의 초형은 중간형이며, 엽은 담녹색이고, 출수기에 지엽 길이는 중간이며, 상부절간장이 길고 풍엽성이양호하였다. 출수기는 5월 16일로 표준품종인 암바 보다 5일이 빨랐으며, 출수기에 초장은 90 cm로서 암바 보다 5cm 길었다. 내습성과 내병성은 온누리가 암바에 비하여 비교적 강하였으며, 녹병은 온누리가 암바 보다 강한 편 이었다. 온누리의 ha당 건물수량은 14,775 kg으로 암바 보다18% 많았고, 특히 제주지역에서 증수하였다. 온누리의 사료가치는 암바와 비슷하였다. 이상의 결과를 요약하면 온누리는 다수성인 중생종 계통으로, 특히 습해 및 내병성에강하고, 건물 생산성이 많은 품종으로 초지 및 양질 조사료 생산을 위한 우수한 품종이다.

Orchardgrass (Dactylis glomerata L.) is a Gramineae perennial grass species and commonly used as a forage crop and developed to be used for pasture. In Korea, in order to improve high persistence and forage quality, through selection of various superior parental varieties for breeding and synthesis of them with new lines, there are ongoing worldwide studies aiming to enhance the quality and environmental adaptability of Orchardgrass. Between 2010 and 2014, a Orchardgrass variety named Onnuri 2ho was developed by the Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration (RDA), Republic of Korea. For the production of synthetic seeds for Onnuri 2ho 4 superior clones, Dg7506, Dg9508, Edg215 and Edg218 were selected and polycrossed. Between 2010 and 2011, the agronomic growth characteristics and forage production capability of the seeds were studied at Cheonan, and between 2012 and 2014, regional trials were conducted in Cheonan, Hoengseong, Jinju, and in Jeju. The main growth characteristic of Onnuri 2ho is a tetraploid variety, a medium-late maturity variety, the heading stage of which is around May 17, which is four days later than that of Amba. This study tested the regional adaptability of Orchardgrass in Cheonan, Hoengseong, Jeju, and in Jinju. The average dry matter yield of Onnuri 2ho in the four regions was 15,814 kg/ha, which is greater than that of Amba by 34%. These differences show that Onnuri 2ho is more resistant to environmental stresses than Amba and that this growth characteristic directly led to dry matter yield. Thus, Onnuri 2ho is a suitable variety for the establishment of grasslands as it has enhanced disease resistance and persistence, compared to Amba. The forage quality of Onnuri 2ho was similar to that of Amba in crude protein (11.5%), total digestible nutrients (59.2%), neutral detergent fiber (62.7%), and acid detergent fiber (37.6%), whereas the forage quality of Ongreen was higher than that of Amba in (71.0%). The new variety was selected and named Onnuri 2ho from Composite 34 by the RDA in November 2014, and the application for the protection of the new variety by the Korea Seed and Variety Service is currently pending. In this study, a new variety of Orchardgrass with excellent environmental adaptability was developed, in order to contribute to the vitalization of the Korean grassland industry.