Jinhong and Huangtaiping are medium-small apple of our country advantage variety of northern area. There are no reports about regeneration system of Jinhong and Huangtaiping. Plant were regeneration in vitro from medium-small apple varieties Huangtaiping and Jinhong. Factors influencing regeneration in vitro were studied. The ability to regenerate shoot from in vitro leaves of Huangtaiping was much greater than that of Jinhong. Optimal results were obtained by culturing leaves adaxial side down on MS medium...