Changes on Photosynthesis and Its Related Trait according to Front Pole Height of Ginseng (Panax ginseng C.A.Meyer)

This study was researched characteristics of plant and photosynthesis with different growing stage according to shade material. The net photosynthetic rate was increased as the PAR(photosynthetically action radiation) was increased and reached maximum at the 400μmol/m2/s of PAR in all of leaves. Photosynthetic rate was a little lower in shade plate than shade net after noon but much higher before noon resulting in higher total photosynthesis in shade plate. Photosynthetic rate was hightest in 170cm front pole height especially before noon and in the middle growth stage, and decreased and little difference afternoon and in the late stage of growth.