Rooting capacity and changes of the related oxidase activities of hardwood cuttings from 3 mulberry varieties,Lusang seedling,Dalusang and Nongsang 14,were investigated in this paper.The experiment results showed that cuttings from Lusang seedling has high rooting capacity,and the rooting percentage reached to 71.1%.The rooting percentage of cuttings from Dalusang and Nongsang 14 were only 32.20% and 44.43%,respectively.But the rooting percentage of cuttings from Nongsang 14,treated with 150 mg/L IBA soluti...