Techniques of softwood cuttings propagation in Tilia amurensis
In order to screen a set of cutting propagation technique of obviously promoting rooting rate in Tilia amurensis, effects of plant growth regulators (ABT1, IBA, NAA) and its concentrations (50, 100, 200 mg·L/-1), soaking times (1, 4, 8 h), medium types (sand, vermiculite, peat added with perlite), mother plant ages (1, 2 a) on quality of softwood rooting were researched. The results indicate that IBA is the optimal growth regulator for its significant effect on rooting rate, root number and average root length. The treatment of applying 100 mg·L-1 IBA for 8 h has the highest rooting rate (63.07%). The rooting rate was the highest in sands (37.16%), followed by vermiculite, and peat added with perlite is the lowest. The effects of different mother tree ages on rooting of softwood cuttings are different, and one-year softwood cutting has higher rooting quality than two-year softwood cutting, including rooting rate, root number and root length.
Tilia amurensissoftwood cuttinggrowth regulatormediumage of mother plant
NETL
NSTL
万方数据
维普
