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Effect of Different Shading Levels on the Growth and Leaf Color Changes of Variegated Physocarpus opulifolius 'Diabolo' and Ophiopogon planiscapus 'Nigrescens'  

Kim, Hyun Jin (Dept. of Horticultural Science, Seoul Women's University, Graduate School)
Joo, Na Ri (Dept. of Horticultural Science, Seoul Women's University, Graduate School)
Publication Information
Journal of the Korean Society of Environmental Restoration Technology / v.11, no.6, 2008 , pp. 112-119 More about this Journal
Abstract
In order to elucidate growth characteristics, physiological responses and leaf color changes of Physocarpus opulifolius 'Diabolo' and Ophiopogon planiscapus 'Nigrescens'. These experiments were investigated under various shading levels. Growth of P.opulifolius 'Diabolo' was better at 30% shading level but physiological activities were double at strong light condition. Dark purple color was observed at 85% shading level and color was dim down when shading level decreased. Color was deep purple(RHS 202A) at 85% shading and green(RHS 139A) at 0%, These results imply that ornamental value was increased when shading level increased for P. opulifolius 'Diabolo'. Growth and highest physiological activity of O. planiscapus 'Nigrescens' were observed at 0% shading level and dark red color(RHS 202A) was also observed at 0% shading level. These results imply that ornamental value was increased when shading level decreased for O. planiscapus 'Nigrescens'.
Keywords
Growth response; RHS color chart; Potosynthate; Wter efficiency; $CO_2$; efficiency;
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