Growth and biomass production of Gmelina arborea in conventional plantations in Ghana

Sixteen trees, selected from Subri and South Formangso Gmelina plantations, to represent ages (4 - 10 years) and size class distribution, were felled and their linear growth dimensions and biomass measured. In Subri, mean height increased from 16.6m at the 4th year to 19.6m at the 7th year. Corresponding growth of other dimensions were 10-23cm in diameter, 19 to 29m²/ha in basal area, 200 to 274m³/ha in volume and 68 to 119mt/ha in dry matter content. South Formangso crops were slightly lower in height and volume growth than those of Subri.