according to soil quality. In a trial
with 100 of Eucalyptus species tested in the north of the
Buenos Aires province, Mendonza and Alliani (1983)
showed that E. viminalis ranked in the top seven species
in terms of volume increment per year after 9 years, just
outperformed by Eucalyptus fastigata and Eucalyptus
nitens among other species. They highlight E. viminalis as
the best species in the region due to the quality of the wood,
survival, and good form. The first provenance/progeny
trials of E. viminalis were planted in 1971 by the Instituto
Nacional de Tecnología Agropecuaria (INTA) at two sites
in the north of Buenos Aires province: Ramallo and Alsina.
These trials included 22 Australian provenances, covering
most of the E. viminalis native range and including 19
open-pollinated (OP) families from selected trees within the
Argentinean land race. Provenance performance was evaluated
at the age of 3 years at Ramallo and ages 9 and 15 years
at Alsina. Although there were statistically significant
differences among provenances, there was no evidence of a
geographic pattern in the height at 3 years of the Australian
provenances in the Ramallo trial (Mendonza 1974). In this
trial, the best provenances came from Victoria (Cann River
Area, Warburton, and Yarram) though some provenances
from New South Wales (e.g., Tumut and Urriara Forest) also
performed well; meanwhile, the South Australian provenances
were clearly inferior. The provenance Warburton
(Victoria) had the best growth, stem form, and self-pruning
at Alsina and ranked second at Ramallo (Gea and Alliani
1988) after Uriarra Forest (New South Wales)