Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopy

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...

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Autores principales:	Chavesta,Manuel, Montenegro,Rolando, Tomazello-Filho,Mario, Carnerio,Mayara, Nisgoski,Silvana
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2019
Materias:	radial shrinkage tangential shrinkage volumetric shrinkage basic density Partial Least Squares Regression
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000400521
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spelling	oai:scielo:S0718-221X20190004005212019-09-30Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopyChavesta,ManuelMontenegro,RolandoTomazello-Filho,MarioCarnerio,MayaraNisgoski,Silvana radial shrinkage tangential shrinkage volumetric shrinkage basic density Partial Least Squares Regression 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 F 5años = 191,5; F 8 años =84,9) between the different heights in the stem. Basic density and volumetric contraction show values of (0,88 and 0,83) and RPDp (1,55 and 3,27) acceptable for prediction.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.21 n.4 20192019-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000400521en10.4067/S0718-221X2019005000408
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	radial shrinkage tangential shrinkage volumetric shrinkage basic density Partial Least Squares Regression
spellingShingle	radial shrinkage tangential shrinkage volumetric shrinkage basic density Partial Least Squares Regression Chavesta,Manuel Montenegro,Rolando Tomazello-Filho,Mario Carnerio,Mayara Nisgoski,Silvana Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopy
description	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 F 5años = 191,5; F 8 años =84,9) between the different heights in the stem. Basic density and volumetric contraction show values of (0,88 and 0,83) and RPDp (1,55 and 3,27) acceptable for prediction.
author	Chavesta,Manuel Montenegro,Rolando Tomazello-Filho,Mario Carnerio,Mayara Nisgoski,Silvana
author_facet	Chavesta,Manuel Montenegro,Rolando Tomazello-Filho,Mario Carnerio,Mayara Nisgoski,Silvana
author_sort	Chavesta,Manuel
title	Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopy
title_short	Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopy
title_full	Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopy
title_fullStr	Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopy
title_full_unstemmed	Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopy
title_sort	physical properties of guazuma crinita by conventional methods and near infrared spectroscopy
publisher	Universidad del Bío-Bío
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000400521
work_keys_str_mv	AT chavestamanuel physicalpropertiesofguazumacrinitabyconventionalmethodsandnearinfraredspectroscopy AT montenegrorolando physicalpropertiesofguazumacrinitabyconventionalmethodsandnearinfraredspectroscopy AT tomazellofilhomario physicalpropertiesofguazumacrinitabyconventionalmethodsandnearinfraredspectroscopy AT carneriomayara physicalpropertiesofguazumacrinitabyconventionalmethodsandnearinfraredspectroscopy AT nisgoskisilvana physicalpropertiesofguazumacrinitabyconventionalmethodsandnearinfraredspectroscopy
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Physical properties of Guazuma crinita by conventional methods and near infrared spectroscopy

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