Abstract: The effects of kinds, concentration, treatment time of plant growth regulator on rooting rate, root coefficient and seedling height of Semiliquidambar cathayesis were studied by orthogonal design method. The effects of different cutting matrix and different cutting processing on S. cathayesis also carried out. The results showed that 200 mg稬-1 ABT1 treating for 30 min and in a matrix with a layer 2 cm river sand and overlying a layer 2 cm yellow soil were best for S. cathayesis cutting, the average rooting rate was up to 90.3%, the average root coefficient and average seedling height were the best. The primary and secondary factors were matrix type > growth regulator type > growth regulator concentration > processing time. The growth indexs of cuttings from 6 cm semi lignified twigs with cutting double surfaces were the best.

Key words: Semiliquidambar cathayesis, cutting seedling, technique

摘要： 采用正交试验设计，探讨植物生长调节剂种类、浓度、处理时间以及扦插基质、插条剪制方式与木质化程度对半枫荷Semiliquidambar cathayesis扦插生根率、根系数及苗高的影响。结果表明，插条采用200 mg·L-1 ABT1生根剂浸泡30 min后扦插于基质A(一层2 cm河沙，上覆一层2 cm黄泥土)中，生根率最高(90.3%)，且插条平均根系数及苗高均最佳。影响插条上述生长指标的主次因素为基质种类＞生长调节剂种类＞生长调节剂浓度＞处理时间。不同插条处理中，以截取6 cm长半木质化嫩枝进行双削面处理的生根率最高，且根系数及苗高生长指标亦最佳。

关键词: 半枫荷, 扦插育苗, 技术