Estimación de propiedades físicas y anatómicas de árboles en pie de Pinus taeda utilizando tecnologías no destructivas

Compression wood (CW) is formed in gymnosperms in the lower part of branches and inclined trunks as a biomechanical adaptation mechanism, which generates a negative effect for the industry. Therefore, it is essential to develop methodologies to detect the presence of CW in standing trees to prevent this material from reaching industrial processes. With this objective, nondestructive testing (NDT) for the early detection of CW in standing trees of Pinus taeda was evaluated. Eighteen trees were selected according to phenotypic criteria, and measurements were made using a sonic tomograph (Fakopp), ultrasound (Sylvatest) and resistograph (penetrometer). In addition, physical properties were determined and a visual evaluation of the presence of CW was performed. The results indicated that the resistograph is the equipment that presents the highest correlation with CW; however, it is advisable to use these techniques together, since a complementarity between them has been observed. It is necessary to continue with studies to identify the best combination of NDT and reduce the error of the model (decision tree) proposed for the estimation of CW in standing trees.