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dc.contributor.authorTyson, Justin August
dc.date.accessioned2014-03-04T02:53:09Z
dc.date.available2014-03-04T02:53:09Z
dc.date.issued2007-12
dc.identifier.othertyson_justin_a_200712_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/tyson_justin_a_200712_ms
dc.identifier.urihttp://hdl.handle.net/10724/24517
dc.description.abstractWe tested the applicability of NIR-based wood property calibrations for eucalyptus plantations in central Brazil to trees in southern Brazil. Prediction errors for the southern samples were too high. As we added southern samples to the calibrations, prediction statistics for most wood properties improved considerably. We also collected increment cores and drill shavings from trees in central Brazil and collected NIR spectra from both. The aforementioned calibrations were used to predict the wood properties of the trees, and milled shavings were found to provide biased wood property estimates. Next, we collected bleached eucalyptus handsheets from a pulp mill in Espírito Santo. Mechanical and physical properties of the handsheets were measured and NIR calibrations were created. Calibration and cross-validation statistics were poor for all properties. Finally, we collected unbleached eucalyptus pulp samples, measured their carbohydrates, and created NIR calibrations. Calibration and prediction statistics were excellent for both xylose and rhamnose, but poorer for other carbohydrates.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectnear-infrared spectroscopy
dc.subjecteucalyptus
dc.subjectgenetic improvement
dc.subjectlignin
dc.subjectpentosans
dc.subjectdensity
dc.subjectpulp yield
dc.subjectpulp property
dc.subjectcarbohydrate
dc.titleApplications for NIR spectroscopy in eucalyptus genetics improvement programs and pulp mill operations
dc.typeThesis
dc.description.degreeMS
dc.description.departmentForest Resources
dc.description.majorForest Resources
dc.description.advisorLaurence R. Schimleck
dc.description.committeeLaurence R. Schimleck
dc.description.committeeRichard F. Daniels
dc.description.committeeLawrence A. Morris


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