Background : Clematis trichotoma is a deciduous climber belonging to the family Ranunculaceae. This study was carried out to survey the effect of shading levels on growth characteristics in Clematis trichotoma seedling. Methods and Results : Seeds were collected from plants growing in the Mt. Kariwang Jeongseon, Gangwon-do in October 2013, and they were sown to 96 cell plug tray filled with Peatmoss (TKS-2) soil at March, 2015. The experiment was performed with four different shading levels (0, 30, 60, 90%) at July, 2015. According to the experiment, plant height was the highest under 90% of shading. It was found that fresh weight and dry weight of clematis trichotoma were the highest under 90% of shading. The leaf number was the highest under 30% of shading. The leaf number decreased as the shading level increased. Root number and length were the highest under 90% of shading. Conclusion : According to the results, Clematis trichotoma seedling showed the highest growth under 90% shading.

• Kyu Seong Choi(Useful Plant Resources Center, Korea National Arboretum, Korea Forest Service) | 최규성
• Han Choi(Useful Plant Resources Center, Korea National Arboretum, Korea Forest Service) | 최 한
• Hyo Yeon Kim(Useful Plant Resources Center, Korea National Arboretum, Korea Forest Service) | 김효연
• Do Hyun Kim(Useful Plant Resources Center, Korea National Arboretum, Korea Forest Service) | 김도현
• Sun Hee Ryu(Useful Plant Resources Center, Korea National Arboretum, Korea Forest Service) | 류선희
• Jeong Ho Lee(Useful Plant Resources Center, Korea National Arboretum, Korea Forest Service) | 이정호
• Ki Cheol Lee(Useful Plant Resources Center, Korea National Arboretum, Korea Forest Service) | 이기철 Corresponding author