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KMID : 1098420150230010043
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Korean Journal of Medicinal Crop Science
2015 Volume.23 No. 1 p.43 ~ p.48
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Characteristics of Photosynthesis and Leaf Growth of Peucedanum japonicum by Leaf Mold and Shading Level in Forest Farming
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Song Ki-Seon
Jeon Kwon-Seok
Choi Kyu-Seong
Kim Chang-Hwan
Park Yong-Bae
Kim Jong-Jin
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Abstract
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This study was carried out in order to investigate the photosynthesis response and leaf characteristics of Peucedanum
japonicum growing in forest farming. The experiment was performed by leaf mold (pine tree and chestnut tree) and shading levels (0%, 35%, 50% and 75% shading). Light relative intensity was 100% (full sunlight), 60.3% (35% hading), 35.1% (50% shading), and 17.4% (75% shading) respectively. Light response curves of pine-leaf mold and chestnutleaf mold were the highest in control (full sunlight) and these were getting lower in the higher shading level. Photosynthesis capacity and light saturation point were indicated higher in chestnut-leaf mold within the same shading level. As the shading level increased, maximum photosynthesis rate decreased. And apparent quantum yield was not indicated statistically significant difference from all treatment. Leaf area, leaf length and leaf width were significant higher in 35% shading and control under chestnut-leaf mold in all treatment. As the shading level increased, LAR (leaf area ratio), SLA (specific leaf area) and SPAD value decreased in pine-leaf mold and chestnut-leaf mold. As a result of surveying the whole experiment, P. japonicum is judged better growth and higher yield by maintaining 35% shading (relative light intensity 60%) under chestnut-leaf mold in forest farming.
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KEYWORD
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Forest Farming, Leaf Area, Leaf Mold, Peucedanum japonicum, Photosynthesis Capacity, Shading Rate
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