수확이 빠른 조숙성 조사료용 월동귀리 '하이어리' = 'Hi-early', Early Heading and Harvestable Winter Forage Oats Cultivar

다국어 초록 (Multilingual Abstract)

Oats (Avena sativa L.), which are known as one of the forage crops of Korea, have good livestock palatability and are popular to cattle farmers because of their high dry matter. However, the cultivation of double cropping in the rice field was reluctant due to the late maturing for farmers to plant rice continuously. 'Hi-early', a winter oats for forage use, was developed by the breeding team at National Institute of Crop Science, RDA in 2016. It was derived from a cross between '517A2-121'(IT133383) and 'CI7604' (IT133379). Subsequent generations followed by the cross were handled in bulk and pedigree selection programs at Suwon, Iksan and Jeonju, respectively. After preliminary and advance yield test for 2 years, 'SO2004015-B-B-23-1-3-7', designated as a line name of 'Gwiri92', were subsequently evaluated for earliness and forage yield during 3 years in four parts such as Jeju (upland), Yesan (upland), Iksan (upland), and Jeonju (paddy), from 2014 to 2016, and finally named as 'Hi-early'. Cultivar 'Hi-early' has the characteristics of medium leaves of green color, thick diameter culm, and medium grain of brown color. Over 3 years, the heading date of 'Hi-early' was about 9 days earlier than that of check cultivar 'Samhan' (April 26 and May 5, respectively). Average forage fresh yield of 'Hi-early' harvested at milk-ripe stage was similar to check cultivar ($40.2tone\;ha^{-1}$ and 40.0 tone ha-1, respectively), and dry matter yield also was similar to check cultivar (14.2 tone ha-1 and $14.0tone\;ha^{-1}$, respectively). Cultivar 'Hi-early' was lower than the check cultivar 'Samhan' in terms of the protein content (6.2% and 7.0%, respectively) and total digestible nutrients (61.0%, and 62.5%, respectively), while the TDN yield was more than the check ($7.91tone\;ha^{-1}$ and $7.64tone\;ha^{-1}$, respectively). Fall sowing cropping of 'Hi-early' is recommended only in areas where average daily minimum mean temperatures in January are higher than $-6^{\circ}C$, and it should not be cultivated in mountain areas, where frost damage is likely to occur.

참고문헌 (Reference)

1 박태일, "한국에서 개발된 총체사료용 보리 품종의 형태적 특성" 한국초지조사료학회 28 (28): 193-202, 2008

2 한옥규, "중남부지역 적응 내한 다수 조사료용 월동귀리 신품종 ‘광한’" 한국육종학회 42 (42): 226-230, 2010

3 한옥규, "조숙 다수성 추파 총체사료용 귀리 신품종 ‘옥한’" 한국초지조사료학회 33 (33): 87-93, 2013

4 송태화, "사료맥류의 생육단계별 수량 및 품질 변화" 한국초지조사료학회 29 (29): 129-136, 2009

5 한옥규, "내한 조숙 다수 추파 조사료용 귀리 신품종 “풍한”" 한국육종학회 41 (41): 168-172, 2009

6 한옥규, "내한 다수성 추파 조사료용 총체 귀리 신품종 ‘다한’" 한국초지조사료학회 34 (34): 26-32, 2014

7 한옥규, "남부지역 적응 조숙 다수 조사료용 월동귀리 신품종 ‘조풍’" 한국육종학회 42 (42): 231-235, 2010

8 Cho, C.H., "Wheat and barley science" Hanrimwon Co. 353-357, 2004

9 Holland, C., "Pioneer Hi-Bred International, Inc."

10 AOAC, "Official method of analysis" Association & Official Analytical Chemists 1995

11 Goering, H.K., "Forage fiber analysis. Agriculture Handbook 379" 1-12, 1970

12 Lee, C.W., "Effect of seeding date on growth duration and yield in spring seeded barley" 45 : 366-369, 2000

13 Hyong-Ho Park, "A New Early-Heading and High-Yielding Forage Winter Oat Cultivar, “Chohan”" 한국육종학회 39 (39): 124-125, 2007

14 Hwa-Young Heo, "A New Cold Tolerant, High Forage and Grain Yielding Winter Oat Cultivar “Samhan”" 한국육종학회 35 (35): 331-332, 2003

15 Rural Development Administraion (RDA), "2015/2016 year project plan for collaborative research program to develop new cultivars of winter crops" 62-65, 2015

16 Rural Development Administraion (RDA), "2014/2015 year project plan for collaborative research program to develop new cultivars of winter crops" 76-79, 2014

17 Rural Development Administraion (RDA), "2013/2014 year project plan for collaborative research program to develop new cultivars of winter crops" 74-77, 2013