A successful and detailed in vitro propagation system for rapid
micropropagation of three apple rootstocks: MM ١٠٦, EM ٧ and M ٢٦ has
been developed. Shoot tips and axillary buds excised from field-grown trees
were used as explants, which were surface-disinfected with mercury bichloride,
or with solution of sodium or calcium hypochlorite followed by three rinses
with sterile distilled water.