【摘要】 以银毛椴1年生硬枝为材料,采用正交试验设计,研究了植物生长调节剂的种类、浓度及处理时间对银毛椴硬枝扦插的影响。结果表明,1号处理即1000 mg·L^-1的IBA处理5 mim可获得较高的生根率（71.70%）,其根长及生根数量也优于其他处理,故1号处理最适用于银毛椴的硬枝扦插。更多还原

【Abstract】 The effects of plant growth regulators on the hardwood cutting of Tilia tomentosa were studied by orthogonal design,with one year hard branch of as material. The results showed that No. 1 treatment, i.e. IBA treatment of 1000 mg·L^-1 for 5 mim, could obtain higher rooting rate（71.70%）, and its root length and rooting quantity were also better than other treatments, so No. 1 treatment was most suitable for Tilia tomentosa hardwood cutting.更多还原