차광재 종류가 묘삼의 광합성 형태 및 생육에 미치는 영향

Photosynthetic, Morphological and Growing Characteristics by Shading Materials in Panax ginseng C. A. Meyer

This study was conducted to response the photosynthetic rate and anatomical characters in one year ginseng plant against the light transmission ratio (10%, 20% and 30% in natural light) under shading materials by polyethylene (PE) net. The chlorophyll content and the photosynthesis of ginseng according to the light transmis-sivity showed decreasing trend as the light transmission ratio increased. At the higher light transmission ratio con-dition, leaves showed the chlorosis due to the physiological disorder, stems formed hypodermis, and phloem develop-ment inside the vascular tissue shrunk remarkably. Also, roots showed the epidermis destruction and less cambium development at the higher light intensity. The root weight also decreased as the light transmission ratio increased.