不同处理方式对枫香扦插效果的影响

Influence of Different Treatments on the Cuttage Effect of Liquidambar formosana

以1.5年生枫香优树嫁接苗中上部枝条为试验材料,分析了生根剂、基质、穗条类型和扦插时间对枫香扦插育苗的影响。结果表明:用速蘸法代替浸泡法,扦插成活率明显提高。通过正交试验法分别设计了16种生根剂处理和18种基质处理,其中以500 mg·L^(-1)NAA+500mg·L^(-1)ABT1作为生根剂,黄心土、泥炭土、珍珠岩、锯末(体积比1∶2∶1∶1)为基质,扦插成活率最高,达73.5%。利用硬枝在12月—翌年3月进行扦插,成活率大幅提升,可达80%~90%。

The study analyzed the influence of rooting agent,matrix,spike type and cutting time on cuttage seedling of Liquidambar formosana based on the middle and upper branches of the superior tree grafted seedlings of 1.5-year-old Liquidambar formosana.The results showed that the survival rate of cuttage was improved by quick dipping instead of soaking method.By orthogonal test,sixteen rooting agents and eighteen matrix treatments were designed respectively.With 500 mg·L^(-1)NAA+500 mg·L^(-1)ABT1 as the rooting agent and yellow heart soil,peat soil,perlite,sawdust(volume ratio 1∶2∶1∶1)as the matrix,the survival rate of cuttage accounted for 73.5%which was the highest.Using the hard branch for cuttings from December to March of the next year,the survival rate was greatly increased,up to 80%to 90%.