Chemical and Structural Characterizations of Juvenile Wood, Mature Wood, and Compression Wood of Loblolly Pine (Pinus taeda)

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dc.contributor.advisor Hou-min Chang, Committee Co-Chair en_US
dc.contributor.advisor Vincent L. Chiang, Committee Member en_US
dc.contributor.advisor Barry Goldfarb, Committee Member en_US
dc.contributor.advisor John F. Kadla, Committee Co-Chair en_US Yeh, Ting-Feng en_US 2010-04-02T19:17:36Z 2010-04-02T19:17:36Z 2006-02-01 en_US
dc.identifier.other etd-11022005-202923 en_US
dc.description.abstract In an effort to comprehensively study the wood property variation in juvenile wood, compression wood, and mature wood, and also to provide a rapid and cost-effective assessment tool to screening the wood chemical property variation, several loblolly pines (Pinus tadea), and transmittance near infrared spectroscopy were utilized in this study. The method development results show that a successful screening of wood chemical property variation, such as lignin and α-cellulose contents, could be adapted using stacked wood wafers microtomed from increment cores and combining with transmittance near infrared spectroscopy. The morphological, chemical, and metabolic analyses of juvenile wood and compression wood show that although compression wood and juvenile wood share some properties, they are actually distinct in their chemistry during development and in final wood chemistry and anatomy. The within tree variation analyses also show that juvenile wood from the top of the tree and that from the base of the tree are more different in morphological structures than in chemical structures. A similar pattern was found between juvenile wood and mature wood. The results obtained suggest that the within tree compression wood percentage and the fiber quality differences inherent in juvenile wood appear to have a greater influence on the final wood products. en_US
dc.rights I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. en_US
dc.subject juvenile wood en_US
dc.subject mature wood en_US
dc.subject loblolly pine (Pinus taeda) en_US
dc.subject nitrobenzene oxidation en_US
dc.subject a-cellulose content en_US
dc.subject wood wafer en_US
dc.subject increment cores en_US
dc.subject microfibril angle en_US
dc.subject fiber quality analysis (FQA) en_US
dc.subject compression wood en_US
dc.subject within tree variation en_US
dc.subject cellulolytic enzyme lignin (CEL) en_US
dc.subject cellulose crystallilte dimension en_US
dc.subject transmittance near-infrared spectroscopy (NIR) en_US
dc.subject X-Ray diffraction en_US
dc.subject light microscopy en_US
dc.subject lignin C9 formula en_US
dc.subject Aspen (Populus trichocarpa) en_US
dc.subject ozonation en_US
dc.subject sugar analysis en_US
dc.subject NMR spectroscopy en_US
dc.subject screening en_US
dc.subject lignin content en_US
dc.title Chemical and Structural Characterizations of Juvenile Wood, Mature Wood, and Compression Wood of Loblolly Pine (Pinus taeda) en_US PhD en_US dissertation en_US Wood and Paper Science en_US

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