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Chemical and structural characteriza...

Yeh, Ting-Feng.

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Chemical and structural characterizations of juvenile wood, mature wood, and compression wood of loblolly pine (Pinus taeda).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Chemical and structural characterizations of juvenile wood, mature wood, and compression wood of loblolly pine (Pinus taeda)./
Author:	Yeh, Ting-Feng.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2005,
Description:	213 p.
Notes:	Source: Dissertation Abstracts International, Volume: 67-06, Section: B, page: 2907.
Contained By:	Dissertation Abstracts International67-06B.
Subject:	Wood sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3223226
ISBN:	9780542743276

Chemical and structural characterizations of juvenile wood, mature wood, and compression wood of loblolly pine (Pinus taeda).
Yeh, Ting-Feng.

Chemical and structural characterizations of juvenile wood, mature wood, and compression wood of loblolly pine (Pinus taeda). - Ann Arbor : ProQuest Dissertations & Theses, 2005 - 213 p.

Source: Dissertation Abstracts International, Volume: 67-06, Section: B, page: 2907.

Thesis (Ph.D.)--North Carolina State University, 2005.

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 alpha-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.

ISBN: 9780542743276Subjects--Topical Terms:

3168288
Wood sciences.

Chemical and structural characterizations of juvenile wood, mature wood, and compression wood of loblolly pine (Pinus taeda).
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245 1 0 $a Chemical and structural characterizations of juvenile wood, mature wood, and compression wood of loblolly pine (Pinus taeda).
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300 $a 213 p.
500 $a Source: Dissertation Abstracts International, Volume: 67-06, Section: B, page: 2907.
500 $a Advisers: Hou-min Chang; John F. Kadla.
502 $a Thesis (Ph.D.)--North Carolina State University, 2005.
520 $a 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 alpha-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.
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