Fig. 1. Adventitious root production from gamma irradiated mutant lines: (A) ginseng seed was germinated by in vitro culture, (B) amorphous embryogenic calli were induced from ginseng cotyledons, (C) embryogenic callus formation on the callus induction medium, (D) selected high frequency of adventitious root formation, (E) proliferation of the adventitious root in the liquid adventitious root induction medium. NAR, non-irradiated adventitious root; MAR, mutated adventitious root (5-line).