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

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)
Publication Information
Journal of agriculture & life science / v.46, no.1, 2012 , pp. 53-61 More about this Journal
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.
Keywords
Q. acutissima; Q. serrata; Above-ground growth; Root growth; Transplanting performance;
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