ESTIMATE OF THE DENSITY OF Eucalyptus grandis W. Hill ex Maiden USING NEAR INFRARED SPECTROSCOPY

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dc.creatorSilviana Rosso
dc.creatorGraciela Ines Bolzon de Muniz
dc.creatorJorge Luis Monteiro de Matos
dc.creatorClóvis Roberto Haselein
dc.creatorPaulo Ricardo Gherardi Hein
dc.creatorMerielen de Carvalho Lopes
dc.date2013
dc.date.accessioned2026-07-07T02:40:21Z
dc.descriptionThis study aimed to analyze use of near infrared spectroscopy (NIRS) to estimate wood density of Eucalyptus grandis . For that, 66 27-year-old trees were logged and central planks were removed from each log. Test pieces 2.5 x 2.5 x 5.0 cm in size were removed from the base of each plank, in the pith-bark direction, and subjected to determination of bulk and basic density at 12% moisture (dry basis), followed by spectral readings in the radial, tangential and transverse directions using a Bruker Tensor 37 infrared spectrophotometer. The calibration to estimate wood density was developed based on the matrix of spectra obtained from the radial face, containing 216 samples. The partial least squares regression to estimate bulk wood density of Eucalyptus grandis provided a coefficient of determination of validation of 0.74 and a ratio performance deviation of 2.29. Statistics relating to the predictive models had adequate magnitudes for estimating wood density from unknown samples, indicating that the above technique has potential for use in replacement of conventional testing.
dc.formatapplication/pdf
dc.identifier0104-7760
dc.identifierhttps://www.redalyc.org/articulo.oa?id=74429306015
dc.identifier.urihttp://hdl.handle.net/123456789/421068
dc.languageen
dc.publisherUniversidade Federal de Lavras
dc.relationhttp://www.redalyc.org/revista.oa?id=744
dc.rightsCERNE
dc.sourceCERNE (Brasil) Num.4 Vol.19
dc.subjectAgrociencias
dc.titleESTIMATE OF THE DENSITY OF Eucalyptus grandis W. Hill ex Maiden USING NEAR INFRARED SPECTROSCOPY
dc.typeartículo científico

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