Studies on the Extraneous Hormone and the Extrinsic Conditions of Cuttings of Rosa xanthina
The relationships between the rooting capability and the cutting conditions of young ramulus and old ramulus of Manchu Rose were investigated in this paper.The influence of extraneous hormone upon the rooting capability was also analysed.The results of experiment showed that the rooting capability of young ramulus cuttings with the xyloid basis and old cuttings with the flower buds removed was stronger than that of the control.The rooting capability of cuttings could be raised by application of the extraneous hormone.The optimal mixed hormone concentrations of IAA,6 BA,IBA were 108 14,159 92,113 04 mg/L,respectively.