Experiment on Rooting of Cinnamomum camphora var. linaloolifera Cuttings

Current branches of adult Cinnamomum camphora var. linaloolifera were harvested in May 2018, in Nanchang, Jiangxi province for cuttings with one leaf and one bud. They were treated by different concentration of IBA, in different medium and different cutting time. 2 months later, investigations were conducted on rooting and growth of cuttings. The results showed that IBA could evidently improve rooting of cuttings, which had adventitious root 35 days after treatment, and the optimal concentration of IBA was 3 000 mg·L-1 with rooting rate of 67.67%. Cutting medium had significant effect on rooting and growth of C. camphora var. linaloolifera cuttings, the experiment demonstrated that red soil + plant ash=3:1 had the highest rooting rate and the best growth of cuttings. Cutting time had the best rooting effect in May; the rooting rate was 63.33%, significantly higher than that in August and September.