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Evaluation of Agronomic Characteristics and Fatty Acid Composition of Flax Germplasms

아마 유전자원의 농업적 특성 및 지방산 조성 평가

  • Lee, Yong-Hwa (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Bae, Sang-Mok (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Park, Won (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Kim, Kwang-Soo (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Jang, Young-Seok (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Kyeong-Bo (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration)
  • 이영화 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 배상목 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 박원 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 김광수 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 장영석 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 이경보 (농촌진흥청 국립식량과학원 바이오에너지작물연구소)
  • Received : 2016.03.14
  • Accepted : 2016.06.09
  • Published : 2016.06.30

Abstract

In this study, agronomic characteristics and fatty acid composition of 121 flax (Linum usitatissimum L.) germplasms were analyzed. The flax germplasms had a fairly short growth period of 75-95 days. The plant height at maturity varied from 52 to 124 cm. The flower color varied from white to lilac and even purple. Early flowering flax germplasms had white flowers and were resistant to lodging. In early flowering flax germplasms, all agronomic characteristics, including growth period, plant height, branch number per plant, stem diameter, number of capsules per raceme, seed number per capsule, 1000-seed weight, and seed yield, were decreased. The average fatty acid composition of 121 flax germplasms comprised palmitic acid (5.3%), stearic acid (4.3%), oleic acid (29.7%), linoleic acid (13.1%) and linolenic acid (46.4%). The total content of unsaturated fatty acids ranged from 84~94% with an average of 88%. Among the fatty acids, linolenic acid (omega-3) content was the highest with a range of 36~54%. In five selected flax germplasms (Hollandia 1803, Red son, C & F Res Br 1767, Wiera, and Ireland 1657) with high linolenic acid (${\geq}51%$), total lipid and protein contents were 30~36% and 5.4~6.9%, respectively. Overall, flax can practically be adoptable into cropping systems in South Korea and utilized as a scenery crop, since flax has a short cultivation period with diverse flower colors.

아마(Linum usitatissimum L.)의 기름과 줄기섬유는 다양한 용도를 가지고 있어 최근 들어 주목을 받고 있는 작물이다. 본 연구는 아마의 활용도 제고를 위해 아마 유전자원 121점에 대해 농업형질, 지방산 조성, 조지방 및 조단백질 함량을 분석하여 신규 경관작물 및 유지작물 개발의 기초 자료로 활용하고자 수행하였다. 아마는 재배기간이 75~95일로 짧고, 키가 52~124 cm 정도 자라며, 꽃색이 흰색, 연보라색, 진보라색, 및 보라색으로 크게 4종류로 나타났다. 개화시가 빠른 유전자원들은 모두 꽃색이 백색이고, 도복에도 강하게 나타났을 뿐만 아니라 성숙기와 생육기간은 짧고, 초장, 주당분지수, 경태, 주당삭수, 삭당종자립수, 천립중, 및 종실수량은 감소하는 것으로 나타났다. 아마의 지방산 조성은 팔미트산(C16:0) 5.3%, 스테아린산(C18:0) 4.3%, 올레산(C18:1) 29.7%, 리놀레산(C18:2) 13.1 및 리놀렌산(C18:3) 46.4%로 나타났다. 리놀렌산 함량이 51% 이상인 유망 유전자원 10점 중에서 임의로 선발한 5점(Hollandia 1803, Red son, C & F Res Br 1767, Wiera, Ireland 1657)에 대한 조지방과 조단백질 함량의 범위는 각각 30~36% 및 5.4~6.9%로 나타났다. 본 연구결과를 종합해 볼 때 아마는 재배기간이 3~4개월로 짧아 기타 동 하계 작물과 작부체계상 매우 유리하고, 꽃색이 흰색, 연보라색 및 진보라색으로 다양하여 경관작물로도 활용이 가능할 것으로 기대된다.

Keywords

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