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The Effect of Seedlings Density in Nursery on Biomass Production and Growth Characteristic of Styrax obassia  

Choi, Jeong-Ho (Forest Practice Research Center Korea Forest Research Institute)
Yoo, Se-Kuel (Forest Practice Research Center Korea Forest Research Institute)
Lee, Soo-Won (Forest Practice Research Center Korea Forest Research Institute)
Oh, Seok-Gui (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
Publication Information
Journal of Bio-Environment Control / v.16, no.3, 2007 , pp. 217-221 More about this Journal
Abstract
To provide the basic data essential for developing varieties of broad-leaved tree, the study investigated the utmost growth requirement for the growth characteristic and biomass production in accordance with planting density of Styrax obassia. The planting density of seedling can be a significant factor in contributing growth of seedling for tree growing in general. While growth of tree according to $1m^2$ planting density of Styrax obassia showed an excellent growth in tree height and the root collar diameter from $49no./m^2$, those low planting density showed decreased tendency with tree height growth while increasing the root collar diameter growth. As similar to the growth characteristic, the biomass production showed significant and statistic difference in $49no./m^2$, showing high volume of biomass production which is $3.12{\pm}0.80g$ compare to other processing section and high figure with T/R ratio which is 1.59. The special trait of photosynthetic also showed relatively high photosynthetic rate in $49no./m^2\;and\;64no./m^2$ of Styrax obassia and as the density increase, photosynthetic efficiency decreased. The plant showed stable and physiological planting pattern, displaying the best photosynthetic rate, which was the final metabolism through reserving proper space in the growth and development environment condition. This obstacle of required space essential for growth substantially deteriorated planting and ultimately, it demonstrated lower tendency of photosynthetic rate, which is the highest level of metabolism.
Keywords
biomass production; growth characteristics; planting density; Styrax obassia;
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