We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
PROPIEDADES FÍSICAS EN Guazuma crinita POR MEDIOS CONVENCIONALES Y ESPECTROSCOPIA INFRARROJA CERCANA.
- Authors
Chavesta, Manuel; Montenegro, Rolando; Tomazello-Filho, Mario; Carnerio, Mayara; Nisgoski, Silvana
- Abstract
The aim of the present study was to determine the physical properties of the Guazuma crinita wood by conventional methods, as well as to estimate these properties by near infrared spectroscopy (NIR) through the development of multivariate calibration models. The samples were obtained from five trees and from three levels longitudinally for 5 and 8 years of age randomly selected from a plantation in Puerto Inca, Department of Huánuco (Perú). Basic density, volumetric, tangential and radial contraction were determined by the conventional methods. Models were developed by regression of partial least squares (PLS) through mathematical transformations. For the validation of the models, a new group of samples -which did not participate in the development of the model were used. Statistical significance was found F5años = 191,5; F8años =84,9) between the different heights in the stem. Basic density and volumetric contraction show values of Rc² (0,88 and 0,83) and RPDp (1,55 and 3,27) acceptable for prediction.
- Subjects
PERU; NEAR infrared spectroscopy; MATHEMATICAL transformations; STATISTICAL significance; MODEL validation; PARTIAL least squares regression
- Publication
Maderas: Ciencia y Tecnología, 2019, Vol 21, Issue 4, p521
- ISSN
0717-3644
- Publication type
Article
- DOI
10.4067/S0718-221X2019005000408