한국육종학회지 (Korean Journal of Breeding Science)

  • 제43권4호
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  • Pages.330-336
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  • 2011
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  • 0250-3360(pISSN)
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  • 2287-5174(eISSN)
한국육종학회 (The Korean Society of Breeding Science)
권호 표지

소나무 풍매차대 가계의 유묘 생장특성과 성목 생장과의 관계

Relationships of Growth Characteristics Between Adult Trees and Their Seedlings in Open-Pollinated Pinus densiflora Families

  • 이위영 (국립산림과학원 산림자원육성부) ;
  • 박응준 (국립산림과학원 산림자원육성부) ;
  • 전병환 (국립산림과학원 산림자원육성부) ;
  • 한상억 (국립산림과학원 산림자원육성부)
  • Lee, Wi-Young (Department of Forest Resources Development, Korea Forest Research Institute) ;
  • Park, Eung-Jun (Department of Forest Resources Development, Korea Forest Research Institute) ;
  • Cheon, Byoung-Hwan (Department of Forest Resources Development, Korea Forest Research Institute) ;
  • Han, Sang-Urk (Department of Forest Resources Development, Korea Forest Research Institute)
  • 투고 : 2011.06.20
  • 발행 : 2011.09.30
⟨ 이전 논문 다음 논문 ⟩

초록

신속하게 생장하는 소나무의 조기 선발인자를 구명하고자 32년생 소나무의 풍매차대 검정결과로 얻어진 재적지수를 기준으로 상, 중, 하로 구분하여 선발된 12가계의 생장특성과 동일한 가계의 유묘 생장특성과의 상관관계를 분석하였다. 선발된 12가계의 종자 특성과 동일 가계의 성목 생장특성과는 상관관계가 없었으며 다만 소나무 유묘의 초기 생장과는 관련이 있는 것으로 나타났다. 가계별 1년생의 유묘 건물중과 성목의 재적지수(32년생)와는 1%의 유의적 정의 상관 관계가 있는 것으로 나타났다. 특히 재적지수가 높았던 상위 그룹의 유묘 가계의 건물중에 따른 서열은 모두 상위에 있어 중, 하위 그룹과 구분이 되었다. 또한 가계별 묘고의 평균 생장속도는 상, 중, 하위그룹이 각 4.568, 3.773, 3.535로 나타나 상위 그룹이 중, 하위 그룹보다 매우 빠른 것으로 나타났다. 이러한 결과로 유묘의 건물중 및 묘고 생장속도는 신속 생장하는 소나무 가계의 조기선발을 위한 주요 인자로 추정되었다.

A comparative study was conducted on genetic correlation between 12 open-pollinated families (32-year-old) and their one-year-old seedlings for early selection on the fast-growing trait in Pinus densiflora S. et Z.. Those twelve families were divided into three groups such as superior, intermediate, and inferior, on the base of the growth indexes of 32-year-old P. densiflora. The growth performance of the 32-year-old P. densiflora showed significant correlation with the growth traits of their one-year-old seedlings. Dry weights of the seedlings had significant correlation (P < 0.01) with the growth index of the adult plants and its $R^2$ value was 0.597, suggesting that 59.7% of the families could be selected by using dry weights of one-year-old seedlings. Furthermore, the growth rates of seedling heights for superior, intermediate, and inferior groups were 4.568, 3.773, and 3.535, respectively, resulting that seedlings of the superior group grew approximately 1.3-fold faster than those of the inferior group. Therefore, we concluded that two growth traits of one-year-old seedlings dry weight and growth rate were suppose to the early selection factors for the fast-growing trait for P. densiflora.

키워드

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