Effects of Root Pruning and Transplanting Density on Growth Characteristics of Quercus Species Seedlings

참나무류 묘목의 단근 및 이식밀도가 생장특성에 미치는 영향

  • Na, Sung-Joon (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Kim, Chang-Soo (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Woo, Kwan-Soo (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Lee, Jae-Cheon (Department of Forest Genetic Resources, Korea Forest Research Institute)
  • 나성준 (국립산림과학원 산림유전자원부) ;
  • 김장수 (국립산림과학원 산림유전자원부) ;
  • 우관수 (국립산림과학원 산림유전자원부) ;
  • 이재천 (국립산림과학원 산림유전자원부)
  • Received : 2011.12.22
  • Accepted : 2012.02.24
  • Published : 2012.02.28

Abstract

This study was conducted to clarify reasonable root pruning and transplanting density for efficient production of seedlings of Quercus species, which is a representative planting species in Korea. Seedlings of Q. acutissima and Q. serrata, which were pruned roots by 5 cm, showed poorer above-ground and root growth compared to those pruned by 10 cm and 15 cm, and growth performance of seedlings pruned by 10 cm was shown similarly those pruned by 15 cm. The growth performance of seedlings transplanted in the density of below 64 seedlings per $m^2$ was greater than those transplanted in the density of over 81 seedlings per $m^2$. Therefore, one-year-old seedlings of Q. acutissima and Q. serrata should be transplanted in the density of 64 seedlings per $m^2$ after pruning their roots by 10 cm to obtain excellent growth performance and increase the efficiency of transplanting. The results of this study can be used as baseline for producing superior seedlings of Q. acutissima and Q. serrata at nursery and understanding early transplanting performance of the species.

본 연구는 우리나라의 대표적인 조림수종인 참나무류의 건전하고 효율적인 묘목생산을 위한 적정 단근길이와 이식밀도를 구명하고자 실시하였다. 상수리나무와 졸참나무의 단근길이별 묘목생장에서 5 cm로 단근된 묘목은 10 cm 및 15 cm로 단근된 묘목보다 저조한 지상부 및 뿌리생장을 나타내었고, 10 cm로 단근된 묘목은 15 cm로 단근된 묘목과 유사한 생장을 나타내었다. 이식밀도별 묘목생장에서는 64본/$m^2$ 이하의 이식밀도 처리구가 81본/$m^2$ 이상의 이식밀도 처리구보다 우수한 생장을 나타내었다. 따라서 묘목의 우수한 생장과 이식작업의 효율성 등을 고려할 때, 상수리나무와 졸참나무 1-0묘의 이식은 주근을 10 cm로 단근하여 64본/$m^2$의 밀도로 이식하는 것이 가장 적합할 것으로 생각된다. 이러한 본 연구결과는 상수리나무와 졸참나무의 양묘 시 우수한 생장을 나타내는 묘목을 생산하고, 두 수종의 초기 이식생장을 이해하는 기초자료로서 이용될 수 있을 것이다.

Keywords

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