Effect of Phytagel on the Root Growth of Plantlets Redifferentiated from Ginseng(Panax ginseng) Embryogenic Cells

This study was carried out to find out the optimum hardening condition for ginseng plantlets redifferentiated by tissue culture method. While a lot of root hair were observed on the root of seedling grown on the soil, few root hair were observed on the root of plantlet redifferentiated in vitro. On the medium solidified with phytagel, root hair was not observed and root weight, root width and laternal root development were also very poor. While raising the phytagel concentration on the media, root hair began to increase and root weight, root width and latemal root development were improved. Vascular tissue of plantlet grown on the medium with phytagel was very poor, but that of plantlet grown on the medium with phytagel was very good.