Provenance Trial of Eucalyptus globulus Labill.

Provenance trials of Eucalyptus globulus Labill. were conducted in Jindian Forest Farm, Yunnan Province. 3 subspecies: Eucalyptus globulus Labill. ssp. globulus Kirkp., E. globulus Labiil. ssp. bicostata Kirkp. and E. globulus Labill. ssp. maidenii Kirkp. were included. The 4 years results showed that there were no statistically significant differences between the 3 subspecies in growth rates, but there were significant differences between provenances of each subspecies in growth rates and adaptability to the environment. Among the subspecies, globulus was the highest in growth rates, followed by bicostata and maidenii. Leperena provenance was the highest in growth rates of globulus, while 12132 and 9539 were the highest of maidenii and bicostata respectively. No significant differences were found between the best provenances of all the subspecies and the controls.