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http://dx.doi.org/10.14578/jkfs.2015.104.3.390

Characteristics of Seedling Quality of Daphniphyllum macropodum 2-year-old Container Seedlings by Shading Level  

Song, Ki Seon (Southern Forest Resources Research Center, Korea Forest Research Institute)
Choi, Kyu Seong (Useful Plants Resources Center, Korea National Arboretum)
Sung, Hwan In (Department of Forestry and Landscape, Graduate School of Agriculture and Animal Science, Konkuk University)
Jeon, Kwon Seok (Southern Forest Resources Research Center, Korea Forest Research Institute)
An, Kyoung Jin (Department of Environmental Design, Konkuk University)
Kim, Jong Jin (Department of Environmental Design, Konkuk University)
Publication Information
Journal of Korean Society of Forest Science / v.104, no.3, 2015 , pp. 390-396 More about this Journal
Abstract
This study was carried out in order to closely examine quality index by shading level of 2-year-old (1-1 seedling) container seedling of Daphniphyllum macropodum which is known as the species of having shade tolerance that is evergreen broad leaved tree in the warm temperate region. The shading treatment was regulated with the shading level of full sunlight, and 35%, 55%, 75%, 95% of full sunlight. As a result of surveying growth according to the shading level, both height and root collar diameter were surveyed to be the highest with 45.1 cm and 8.22 mm, respectively, under 75% of shading. The next was surveyed to be 43.2 cm & 8.05 mm and 42.5 cm & 7.98 mm, respectively, in order of 35% and 55% in shading. Leaf, shoot, root, and whole dry mass production were the highest under 75% of shading. The next was higher in leaf, stem, and whole dry mass production under 55% of shading. A root was higher under 35% of shading in the next. H/D ratio was the range of 5.29~5.35 under the 35~75% shading that showed the relatively high height and root collar diameter. T/R ratio was the lowest with 1.17 under 35% of shading. It was 0.41 under 95% of shading as for LWR, 0.24 under 75%-95% of shading as for SWR, and 0.46 under full sun and 35% shading as for RWR. QI was the highest with 3.74 under 75% of shading. As a result of surveying the whole experiment, it is concluded that the production of D. macropodum seedling is more effective under 75% shading
Keywords
Daphniphyllum macropodum; container seedling; shading treatment; LWR.SWR.RWR; seedling quality index;
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