Influence of Initial Seedling Size and Root Pruning Intensity on Growth of Transplanting Seedling of Quercus acutissma

Title
Influence of Initial Seedling Size and Root Pruning Intensity on Growth of Transplanting Seedling of Quercus acutissma
Author(s)
이도형나성준김인식[김인식]
Keywords
Initial seedling size; Lateral roots; Quercus acutissima; Root pruning intensity; Transplanting performance
Issue Date
201312
Publisher
한국자원식물학회
Citation
한국자원식물학회지, v.26, no.6, pp.709 - 717
Abstract
The objective of this study was to examine the effect of root pruning intensity in combination with different initial seedling size on the growth of transplanting seedlings of Quercus acutissima. One-year-old seedlings were divided into three groups depending on their height, i.e. small (< 15 cm), medium (25-35 cm) and large size (35 cm <). Root of seedlings was pruned by three intensity such as, leaving 5 cm (severe), 10 cm (medium) and 15 cm (light) of taproot from the root-collar. After one year, we investigated survival rate, height and root-collar diameter (RCD) increment and final shoot dry weight. Also we measured characteristics of newly developed lateral roots such as number, total length, dry weight and diameter. Severe root pruning showed the lowest survival rate in all seedling size. Height increment, RCD increment and shoot dry weight were decreased with increasing intensity of root pruning. Seedlings of medium and light root pruning showed similar above-ground growth and dry weight of lateral roots. More large seedlings showed good survival rate,height increment and final shoot dry mass in all root pruning intensity. Therefore, one-year-old seedlings of Q. acutissima should be pruned taproot by 10 cm and transplanted to obtain excellent performance and increase the efficiency of transplanting work. Based on the findings of this study, it is important that applying to different root pruning intensity depending on initial seedling size for producing 2-year-old seedlings with excellent growth and high quality.
URI
http://hdl.handle.net/YU.REPOSITORY/27879http://dx.doi.org/10.7732/kjpr.2013.26.6.709
ISSN
1226-3591
Appears in Collections:
자연자원대학 > 산림자원및조경학과 > Articles
자연자원대학 > 산림자원학과 > Articles
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