Avaliação rebrota da copa das árvores de pau-rosa (Aniba rosaeodora Ducke) em sistema de podas sucessivas

Abstract

This study was carried out in a rosewood plantation (36 years-old) located in the Adolpho Ducke Forest Reserve, Manaus, Amazonas, Brazil, latitude 03º00\' 00 " to 03º08\'00" S and longitude 59º52\'40 " to 59º58\'00" W. The biomass of sprouts was determined from twice pruned (2000 and 2002) rosewood ( Aniba rosaeodora Ducke, Lauraceae) tree crowns, and from those harvested three times (1987, 2000 and 2002). The results show that there are no significant differences in biomass productions between trees harvested two or tree times for the following parameters: DBH, total height, number of sprouts per bole, sprout length and diameter, and fresh canopy fresh weight. The regression and Pearson correlation coefficients showed that crown biomass from the third pruning was strongly correlated with direct PAR, diffuse PAR and total PAR and LAI (leaf area index). The high number of sprouts per bole reveals the crown\'s resprouting capacity after successive pruning. This shows that the species can be managed for biomass production through successive pruning.