Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Plus Tree Selection of Black Locust (Robinia pseudoacacia L.) for Tree Improvement of Timber Characteristics

국내 아까시나무의 용재 특성 향상을 위한 우량개체 선발

  • Tae-Lim, Kim (Forest Tree Improvement and Biotechnology Division, National Institute of Forest Science) ;
  • Hyemin, Lim (Forest Tree Improvement and Biotechnology Division, National Institute of Forest Science) ;
  • Kyungmi, Lee (Forest Tree Improvement and Biotechnology Division, National Institute of Forest Science) ;
  • Changyoung, Oh (Forest Tree Improvement and Biotechnology Division, National Institute of Forest Science) ;
  • Il Hwan, Lee (Forest Tree Improvement and Biotechnology Division, National Institute of Forest Science) ;
  • Hwan Su, Hwang (Forest Tree Improvement and Biotechnology Division, National Institute of Forest Science)
  • 김태림 (국립산림과학원 임목자원연구과) ;
  • 임혜민 (국립산림과학원 임목자원연구과) ;
  • 이경미 (국립산림과학원 임목자원연구과) ;
  • 오창영 (국립산림과학원 임목자원연구과) ;
  • 이일환 (국립산림과학원 임목자원연구과) ;
  • 황환수 (국립산림과학원 임목자원연구과)
  • Received : 2022.08.18
  • Accepted : 2022.11.14
  • Published : 2023.02.01
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Abstract

Plus tree selection is the essential first step in a tree improvement program. This study was carried out to select plus trees of black locust (Robinia pseudoacacia L.) for tree improvement in Korea. The candidate plus trees of black locust were selected from twenty-one places in the four provinces (Gangwon, Gyeonggi, Chungcheong and Gyeongsang) following comparison selection. The trees were examined for qualitative and quantitative traits of economic interest like tree height (H), diameter at breast height (DBH), clear bole height (CBH), stem straightness (SS), crown size (CS) and disease resistance. The 64 selected trees showed higher quality in growth characteristics than control trees. Average of height, DBH, CBH, SS and CS were 20.5 m, 31.1 cm, 10.1 m, 1.2 and 5.2 m respectively. In particular, it was shown that the growth characteristics were higher in Chungcheong population. The superiority percentage of selected candidate plus trees of black locust over their respective check trees ranged from 7.3% to 18.9% in height, 20.0% to 40.6% in DBH, 32.8% to 73.5% in CBH, 42.9% to 55.2% in SS and -11.1% to 9.4% in CS, respectively. The selected black locust will be useful in future tree breeding programs based on their clonal and progeny performance.

기후변화 대응 바이오매스 생산이 우수한 활엽수 경제 조림수종 개발에 대한 수요가 증가하고 있다. 아까시나무는 탄소흡수능이 우수한 속성수로서 국내 적응성이 뛰어나고 경제적, 환경적 기능이 우수하다. 본 연구는 비교선발법을 이용하여 용재수로서 가치가 높은 아까시나무 우량개체 64본을 선발하였다. 경기, 강원, 충청, 경상 등 4개 지역으로 나누어서 생장특성을 비교한 결과 선발목들은 비교목들에 비해 수고, 흉고직경, 지하고, 통직성에서 유의적으로 우수한 형질을 보였다. 특히 충청지역의 선발목들이 가장 우수한 생장특성을 나타냈으며, 임분별로는 고성, 천안, 안동 집단이 우량집단으로 나타났다. 생장에 영향을 주는 요인 중에서 토양 성분은 상관관계가 없었으며, 대단위 산림 조림 지역 혹은 호수와 저수지가 인접한 지역의 선발목이 수고 생장이 우수한 것으로 나타났다.

Keywords

Acknowledgement

본 연구는 국립산림과학원 일반연구사업 "지구온난화에 대비한 적응성 우수 도입수종 육성 연구 (Project No.FE0604-2018-01)"의 지원에 의해 수행된 결과입니다. 이에 감사드립니다.

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