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Characteristics of Photosynthesis and Leaf Growth of Peucedanum japonicum by Leaf Mold and Shading Level in Forest Farming

임간재배지 내 부엽토 및 차광수준에 따른 갯기름나물의 광합성과 엽생장 특성

  • Song, Ki Seon (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Jeon, Kwon Seok (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Choi, Kyu Seong (Useful Plants Resources Center, Korea National Arboretum) ;
  • Kim, Chang Hwan (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Park, Yong Bae (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Kim, Jong Jin (Department of Environmental Design, Konkuk University)
  • 송기선 (국립산림과학원 남부산림자원연구소) ;
  • 전권석 (국립산림과학원 남부산림자원연구소) ;
  • 최규성 (국립수목원 유용식물증식센터) ;
  • 김창환 (국립산림과학원 남부산림자원연구소) ;
  • 박용배 (국립산림과학원 남부산림자원연구소) ;
  • 김종진 (건국대학교 녹지환경계획학과)
  • Received : 2014.11.29
  • Accepted : 2015.01.26
  • Published : 2015.02.28

Abstract

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% shading), 35.1% (50% shading), and 17.4% (75% shading) respectively. Light response curves of pine-leaf mold and chestnut-leaf 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.

Keywords

References

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