本文叙述了七种苹果矮化砧木和五种苹果实生苗茎尖培养的方法。它们的茎尖在含有6-苄基腺嘌呤(0.5毫克/升)和萘乙酸(0-0.1毫克/升)的 Ms 培养基上,在光下或暗中培养都能分化侧芽。短时期内可以得到大量无根幼苗。它们(除了矮化砧木 M.26之外)在两周内可以在含有吲嗓丁酸(0.5-1.0毫克/升)的改良的 Start 和 Bruce 培养基中良好地生根。到目前为止已获得 M.7,M.9和“国光”的成活植株。 This article describes the seven kinds of dwarfing apple stock and five kinds of apple seedlings shoot tip culture method. Their shoot tips differentiate into lateral buds on both Ms medium containing 6-benzyladenine (0.5 mg / L) and naphthaleneacetic acid (0-0.1 mg / L) cultured under light or dark. A short period of time can get a lot of rootless seedlings. They (except Dwarf Rootstock M.26) were well rooted within two weeks in modified Start and Bruce medium containing indobutyric acid (0.5-1.0 mg / L). So far have been M.7, M.9 and “Guoguang” of the living plants.