TREE QUALITY VARIATIONS IN DIFFERENT PROVENANCES OF ACACIA MANGIUM PLANTED IN THE PHILIPPINES

Abstract

Highly significant (p < 0.01) variations in tree quality (i.e. main stem persistence, branch size and stem straightness) were observed in 5.5-y-old mangium (Acacia mangium) of different provenances planted under three different environmental conditions in the Philippines. The best provenances for main stem persistence, small branch size and stein straightness were 13229 (Claudie River, Qld.) in Ilocos Norte region, 13621 (Piru Ceram, Indonesia) in Masbate region and 13238 (Tully Mission Beach, Qld.) in Bukidnon region.