Cruz, Gerson Kleber de Almeida  Pio, Nabor da Silveira  Iwakiri, Setsuo  <br/><br/>
Longitudinal and Transverse Variation in the Physical Properties of Wood Red Tauari 

<br/><br/> Publicação on-line; 29 ref.; 10 tables; 2 illus.; Summary (En) 
<br/><br/> <br/><br/>ABSTRACT<br/><br/>The objective of this work was to study the fiber length variation, retractability and basic density,<br/>in the core-bark direction and along the heig of the red tauari wood (Cariniana micrantha Ducke).<br/>The stem was evaluated in the discs, from core to bark, corresponding to 0%, 25%, 50%, 75%<br/>and 100%. At the commercial height of the tree the evaluation was carried out in the Base, DBH,<br/>50%, 75% and 100%. Three trees were collected and 5 discs of 12 cm of thickness were taken from<br/>each tree the heights: Base, DAP, 50%, 75% and 100%. Results indicated that the fiber length<br/>increases in the radial direction core-bark and decreases in the longitudinal direction, from<br/>base to top. The analysis of the basic density varied in the core-bark direction, with tendency to<br/>increase from the position of 50% (heartwood), then decreasing in the sapwood region. Total<br/>volumetric and linear contractions decreased in the core-bark direction.<br/><br/>Keywords: basic density, shrinkage, fiber. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MADEIRA<br/>DENSIDADE DA MADEIRA<br/>FIBRA<br/>ESTRUTURA VEGETAL<br/>TAUARI