ABSTRACT
The objective of this research was to evaluate three methods of density determination (12% moisture content and basic density). The methods applied were: Stereometry for immersion, and stereometry for direct measurement and gamma ray. Tree of Pinus elliottii of 8, 15, 25 e 35 age, from reforestation submitted or not drawing resin process, were harvested and then sectioned at the DBH, base, 25%, 50%, 75% and 100% of commercial height. The obtained results showed that the applied methods did not present statistic significant differences. However, the method by gamma ray allowed to determine the density of millimeter by millimeter according to direction pith-bark and to transform the density to 12% of moisture content in basic density and density to 0% of moisture content, without saturation and total drying of sample, respectively.
Key words:
wood density; Pinus elliottii; gama ray
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