Abstract:
Effects of rooting powder on the rooting of the cutting of
Taxus chinensis var.
mairei were studied.The results show that rooting powder A
3 is the best,the days of first root appearance,rooting rate,number of root,length of root and index of root system for A
3 are 52.7~64.0d,90.0%~93.7%,8.00~8.67,8.67~8.93cm and 0.61~0.69,which are much better than those of the other three types of rooting powder.The second is the rooting powder A
2,Gibberellin is the poorest.The experiment of concentration show that no significant difference is observed between various concentrations for A
2 and A
3 except the concentration of 20ng/kg for A
1.But a significant difference in index of root system is observed between the concentrations of 20ng/kg and 15ng/kg or 20ng/kg and 10ng/kg.The concentration of 20ng/kg is better than the other two concentrations for A
2.It is possible that the increment of the applied concentration of A
1 and A
2 will increase the rooting efficiency.