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KMID : 1098420060140040244
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Korean Journal of Medicinal Crop Science
2006 Volume.14 No. 4 p.244 ~ p.249
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Effects of Light Intensity on Photosynthesis and Growth in Seedling of Kalopanax pictus Nakai
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Lee Cheul-Ho
Shin Chang-Ho
Kim Kyu-Siek
Choi Myung-Suk
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Abstract
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This study was carried out to determine leaf photosynthetic capacity and growth characteristics of Kalopanax picturs Nakai seedlings under the different light condition. The seedlings grown under low light condition showed larger leaf area and petiole, and higher relative growth rate than those grown under high light condition. Chlorophyll contents as chlorophyll a, chlorophyll b, and chlorophyll a + b were high in the seedlings grown under highlight condition compared to those grown in low light conditions. The mean absorption value of shade leaf within photosynthetically active radiation (400-700 nm) was slightly higher than that of sun leaf, Leaf photosynthetic capacity of seedling was variable under the different light conditions. Seedling grown under high light condition had the higher photosynthetic capacity. Leaf photosynthetic rates under forestry and nursery were 700 and 300;{mu}mol{cdot}m^{-2}{cdot}s^{-1}, respectively. However, leaf photosynthetic rates under high and low light conditions were 500 and 300;{mu}mol{cdot}m^{-2}{cdot}s^{-1}, respectively.
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KEYWORD
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Kalopanax pictus, Photosynthesis, Chlorophyll content, Leaf absorption spectra, PAR
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