Regeneration of Eucalyptus Species in an Eastern Tasmanian Coastal Forest in the Presence of Phytophthora cinnamomi

Abstract

The composition of Eucalyptus regeneration following Phytophthora cinnamomi infestation in an E. sieberi open, shrubby forest is examined.

Surveys made to determine the composition of the original stand show that E. sieberi dominated all sites examined in the study area.

Regeneration of Eucalyptus spp. from both aerial sowing (in a logged area) and natural seed fall (in an unlogged area) has resulted in increased species heterogeneity.

Even in the presence of P. cinnamomi, the susceptible E. sieberi and E. obliqua seedling regenerations have significantly higher relative height growth rates than the field-resistant species E. globulus, E. ovata and E. viminalis on all sites examined.