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참나무류 묘목의 단근 및 이식밀도가 생장특성에 미치는 영향

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

이재천|김장수|나성준|우관수
농업생명과학연구원 (Institute of Agriculture & Life Science, Gyeongsang National University)|2012|농업생명과학연구 (Journal of Agriculture & Life Science)|제46권 제1호|pp. 53-61

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참고문헌

키워드

Root growth상수리나무졸참나무Q. serrata지상부생장뿌리생장이식생장Q. acutissimaAbove-ground growthTransplanting performance

초록

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/m2 이하의 이식밀도 처리구가 81본/m2 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/m2의 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.

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 m2 was greater than those transplanted in the density of over 81 seedlings per m2. Therefore, one-year-old seedlings of Q. acutissima and Q. serrata should be transplanted in the density of 64 seedlings per m2 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.

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