开展了多年生速生法桐枝干育苗与栽植小苗试验.结果表明:速生法桐5~7年生、胸径4~9 cm枝干采用诱导生根技术育苗生根成活率达到91.1%,法桐小苗栽植成活率100%;法桐埋干育苗枝干胸径不宜低于5 cm,采用胸径5 cm以上枝干育苗较栽植小苗可显著提高投资效益,可以根据市场情况于栽植第2~3年出售;采用胸径9 cm以上多年生枝干育苗,2年时间即可培育出胸径10 cm以上大规格苗木,较栽植小苗缩短育苗周期3~4年时间.%An Experiment was conducted on raising seedlings with perennial branches and planting small seedlings of fast-growing platane. The results showed that the rooting and survival rate reached 91.1% when the seedlings were raised using the induced rooting technology with the branches of 5 ~ 7 years' old fast-growing platane having a diameter of 4 ~ 9 cm at breast height and the survival rate reached 100% when the seedlings were raised by planting the small seedlings of platane. For raising seedlings of platane by using perennial branches, the stem diameter at breast height should not be less than 5㎝. The investment benefit could be upgraded significantly when the seedlings were raised by using perennial branch-es with a stem diameter at breast height above 5㎝and the seedlings can be sold on the market 2 ~ 3 years after the planting according to the market situation. The large size seedlings with a stem diameter at breast height above 10 ㎝would be developed within 2 years time, 3 ~ 4 years earlier compared with that by planting small seedlings.
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