Korean Journal of Breeding Science (한국육종학회지)

The Korean Society of Breeding Science (한국육종학회)
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Comparison of Growth Performance and Stem Straightness among 23 Provenances of Quercus rubra Linne

루브라참나무 23개 산지간 생장특성 및 수간 통직성 비교

  • 조도현 (국립산림과학원 산림유전자원부 임목육종과) ;
  • 유근옥 (국립산림과학원 산림유전자원부 임목육종과) ;
  • 김인식 (국립산림과학원 산림유전자원부 임목육종과) ;
  • 이주환 (국립산림과학원 산림유전자원부 임목육종과) ;
  • 박재인 (충북대학교 산림학과)
  • Received : 2013.09.11
  • Accepted : 2013.12.20
  • Published : 2013.12.31
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Abstract

In order to select suitable Quercus tree, Quercus rubra L. was introduced from the native habitats in 1972 to conduct the adaptability test and showed an excellent result in growth performance and wood quality with outstanding adaptability, then the additional 23 provenances were introduced from Canada and USA in 1991 to conduct the provenance test in small scale with 75 trees per provenance. The growth performance of 23 provences were measured at age 4, 8, 10, 12 and 18 years, respectively. The result was that those Quercus rubra L. from New York State and Vermont State were excellent in height-growth, while those from Minnesota State and Virginia State showed poor growth performance. Similar results like in height-growth came out in diameter growth as well; especially those from Minnesota State and Virginia State showed poor growth performance not only in height and but also in diameter, while those from Illinois State and Vermont State showed excellent growth performance in diameter holding a high rank in height-growth. In the investigation of stem straightness according to the characteristic shape of tree trunk, the best provenance was the Beloeill provenance of Quebec Province in Canada, while the worst one was the Sauk Country provenance of Wisconsin State. Especially, the best Beloeill provenance of Quebec Province showed about 3.5 times superior features to our local species of Quercus acutissima, control. The Beloeill provenance is excellent in stem straightness and growth performance comparing to other provenances, which is considered as well adaptive to our climate and environment here in Korea. In addition, the investigation of growth performance and stem straightness showed that the excellent candidates were those Quercus rubra L. from New York State in USA and Quebec Province in Canada, located between 43 and 46 degrees northern latitude. Therefore, Quercus rubra L. is excellent in growth performance comparing to the local species of Quercus acutissima, and has a better adaptability than Quercus robur or Quercus alba, which is expected as the potential species to become our provenance resources and considered to be useful resources adaptable to those areas in South Korea.

유용 참나무 선발을 목적으로 도입된 루브라참나무는 1972년 원산지로부터 도입하여 적응성 검정 결과 생장과 재질이 우수하고 적응력이 뛰어나, 1991년 추가로 23개 산지를 도입하여 각 산지별 75본씩 소규모 산지시험을 하였다. 그 결과 New York와 Vermont주 루브라참나무의 수고생장이 우수하였고, Minnesota주와 Virginia의 생장이 불량하였다. 직경생장에서도 수고생장과 유사한 결과가 나왔으며, 특히 수고생장이 불량한 Minnesota주와 Virginia주는 직경생장도 불량 하였고, 직경생장이 우수한 지역인 Illinois주와 Vermont주의 수고 생장은 상위 그룹에 속하였다. 수종별 생장에서 루브라 참나무는 상수리나무보다 약 30% 생장이 우수하고, 알바참나무와는 약 300% 생장이 우수하였다. 특히 재적생장에서 루브라참나무는 상수리나무보다 약 3배가량 재적생장량이 좋았다. 수간의 형태적 특징에 따른, 통직성 조사시 가장 우수한 산지는 캐나다의 Qubec주의 Beloeill 산지였고, 가장 불량한 산지는 Wisconsin주의 Sauk Country 산지로 나타났다. 특히, 가장 우수한 Qubec주의 Beloeill 산지는 우리나라 향토 수종인 상수리나무(Control) 보다 생장에서 약 3.5배 우량한 특징을 보였다. Beloeill 산지는 다른 산지들에 비해 수간이 통직하고 우량하여 우리나라의 기후 풍토에 잘 적응하는 것으로 판단된다. 또한, 생장과 통직성 조사시 우수한 산지는 북위 $43{\sim}46^{\circ}$에 분포하는 미국의 New York주와 캐나다 Qubec주의 루브라참나무가 우수한 것으로 나타났다. 따라서 루브라참나무는 국내 수종인 상수리나무보다 생장이 우수하고, 로버참나무와 알바참나무보다 적응력이 뛰어나 유망해 보여 도입수종으로서 산지자원화에 기여할 수 있을 것으로 판단된다.

Keywords

References

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