Eucalyptus tereticornis Provenance Trial

A provenance trial ofEucalyptus tereticornis with 15 provenances introduced from Australia has been carried out in eastern Hainan Island.The results show that there have been significant differences in tree height,DBH,timber volume,current survival rate,stem form and wind-resistance among the 5-year-old trees of the fifteen provenances. The provenances from Kennedy River, Queensland (13443)and MT. Gannet (13544)with height growth of 12.68m and 12.66 m respectively are the best ones. The provenance from Papua New Guinea(13418) with DBH growth of 9.05 cm is the best one. And the high latitude provenances from Wictoria(13303)is the worst one in growths of tree height,DBH and timber volume with 8.48 m,6.23 cm and 10.10m3/hm2 respectively. The growths of tree height,DBN and timber volume of the best provenances are respectively 149.35%,145.50% and 606.24% of that of the worst one.