Multiplication rates in vitro and by stem cuttings propagation, and clonal development from Eucalyptus globulus seedlings

Abstract

In developing new clones of forest trees, the first main goal is to propagate enough plantable plants for clonal field trials and a clonal archive. Models of clonal multiplication rates in Eucalyptus globulus indicate that this takes a similar time (about 56 wk) from the sowing of seed, whether multiplication is by axillary shoot culture in vitro or by stem cuttings propagation. Multiplication of unrooted shoots is relatively rapid in vitro but is largely offset by the greater time required for weaning, pricking out, and growth in the nursery.