Effects of plant growth regulators on the rooting of Phoebe chekiangensis cutting
In order to select suitable plant growth regulators for cutting of Phoebe chekiangensis,the semi-lignified branches were used as test materials,and the effects of different types,mass concentration and treatment time of plant growth regulators on new shoot growth and rooting conditions of softwood cuttings were studied by 3-factor and 4-level orthogonal experimental design.The results showed that different treatment of growth regulator could significantly promote the rooting and shoot growth of cuttings.Under the condition of IBA+1 200 mg·L-1+soaking for 1.00 h,the rooting rate was at the highest level,and the cutting growth performance of this combination was the best.The types of growth regulators had the greatest impact on the number of roots and rooting rates.Among the four growth regulators,ABT treatment had the best effect on new shoot growth,IBA treatment had the best effect on the number of rooting.
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