Abstract:
Various plant growth regulator combinations and culture medium types were examined to discussed their effects on startup,proliferation and rooting culture of Cerasus serrulata var.lannesiana‘Mollis’and Cerasus serrulata varlannesiana‘Zuihong’by using stem with bud as explants.The result showed that the medium of MS+10mg/L 6-BA+01mg/L NAA was the most effective for two cultivars to startup culture.In the medium,axillary bud germination rate of‘Mollis’and,‘Zuihong’was 73% and 80%,respectively.Optimal shoot proliferation was obtained in medium of WPM+10mg/L KT+01mg/L IBA. Buds were pretreatment in rooting medium of 1/2 WPM+10mg/L IBA+05mg/L NAA which was added hormone for 4d,and then transfer to a hormonefree medium for 24 days,the rooting percentage of‘Zuihong’and‘Mollis’were 93% and 90%,respectively.The rooted plantlets were transplanted in mixed medium which was compose of perlite,peat and vermiculite,the survival rate was up to 80% after hardening for 30 d.