BANGLADESH JOURNAL OF FOREST SCIENCE
A Half-yearly Peer Reviewed Journal of Bangladesh Forest Research Institute
A Half-yearly Peer Reviewed Journal of Bangladesh Forest Research Institute
Provenances of mangium (Acacia mangium Willd.) from Queensland (Australia),
Papua New Guinea and Indonesia were planted under three site conditions
of Ilocos Norte, Masbate and Bukidnon regions in the Philippines which are
edaphically, climatically and topographically different from each other.
Highly significant (P<0.01) variations in diameter, height and merchantable
height growth performances of 18 provenances at Ilocos Norte, 12 provenances at
Masbate and 12 provenances at Bukidnon at5.5 years after planting were observed.
The best growth was observed in Bukidnon site, and the provenance 13240
(Ellerbeck Rd. Qld.) of the species exhibited the best growth performance at that site
which could be selected for pilot plantation trials in the Philippines.
Interaction of nine provenances of Acacia mangium Willd. were studied at three
sites of the Philippines such as Lubuagan, Vintar in Ilocos Norte (Region – 1),
Mapuyo, Mobo in Masbate (Region-5) and Lantapan Malaybalay in Bukidnon
(Region-10). The sites were climatically, edaphically and topographically different
from each other. The provenances studied were 13233 (Walsh’s Pyramid, Qld.),
13235 (Mourilyn Bay, Qld.), 13236 (Kurrimine, Qld.), 13238 (Tully Mission Beach,
Qld.), 13240 (Ellerbeck Rd. Cardwell, Qld.), 13241 (Broken Pole Creek, Qld.), 13242
(Abergowrie SF, Qld.), 13460 (Oriomo River, Qld.), 13621 (Piru Ceram, Indonesia).
Analysis of variance for diameter and height showed significant variations due
to provenance, site, and provenance-site interactions. All the provenances except
one (13621) showed the best growth at Bukidnon site due to main effect. The
significant provenance-site interaction was found at Masbate site which was mostly
due to the remarkably different growth behaviour of the provenance 13621.
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