Results 221 to 230 of about 14,525 (254)
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Characterisation of juvenile wood in teak
Wood Science and Technology, 2001Juvenile wood properties are studied in a ring-porous tropical hardwood – teak (Tectona grandis L. F), to assess the utilisation potential of short rotation timber. Compared to mature wood, it is characterised by wide rings, short fibres, small diameter, low vessel percentage, high cell wall, wide microfibrillar angle and relatively low or almost ...
K M Bhat
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Differences in wood properties between juvenile wood and mature wood in 10 species grown in China
Wood Science and Technology, 2001This study examined the intrinsic differences in various wood properties between juvenile wood and mature wood in 10 major reforestation species in China. Comparisons between juvenile wood and mature wood were made in both plantation- and naturally-grown trees.
Zhang S Y
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Proportion of juvenile wood of açoita-cavalo, pecan and London plane wood
International Wood Products Journal, 2013This study aims to define the proportion of juvenile wood of acoita-cavalo (Luehea divaricata), pecan (Carya illinoinensis) and London plane (Platanus x acerifolia) wood. Five trees of each species were selected in two regions of a state in the south of Brazil.
Romulo Trevisan +2 more
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Qualification of Wood Adhesives for Structural Softwood Glulam with Large Juvenile Wood Content
Journal of the Institute of Wood Science, 2008AbstractThis paper reports on an experimental study to assess the bond quality achieved when bonding softwood spruce containing large proportions of juvenile wood with a range of conventional wood laminating adhesives. Adhesives examined comprised two phenol resorcinol formaldehydes, a melamine urea formaldehyde, a polyurethane, an emulsion polymer ...
G. Raftery, A. Harte, P. Rodd
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Holzforschung, 2005
Abstract In conifers, juvenile wood (JW) is always associated with compression wood (CW). Due to their similar properties, there is a common belief that JW is the same as CW. To resolve whether JW is identical to CW, 24 rooted cuttings of one loblolly pine clone were planted in growth chambers under normal, artificial bending, and windy ...
Ilona Peszlen +2 more
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Abstract In conifers, juvenile wood (JW) is always associated with compression wood (CW). Due to their similar properties, there is a common belief that JW is the same as CW. To resolve whether JW is identical to CW, 24 rooted cuttings of one loblolly pine clone were planted in growth chambers under normal, artificial bending, and windy ...
Ilona Peszlen +2 more
exaly +2 more sources
Pyridine-catalyst acetylation of pine wood: influence of mature sapwood vs juvenile wood
European Journal of Wood and Wood Products, 2005The aim of this study was to evaluate the effect that chemical modification by means of acetylation may have on juvenile vs mature pine sapwood. The results indicated that juvenile wood had clearly an adverse effect on acetylation; the magnitude of the reduction in WPG in juvenile wood was approximately 50% less than that of mature sapwood.
Antonios Papadopoulos +1 more
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STUDY ON THE LONGITUDINAL GAS PERMEABILITY OF JUVENILE WOOD AND MATURE WOOD
Special Topics and Reviews in Porous Media, 2010Kambiz Pourtahmasi +1 more
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IAWA Journal, 1999
Juvenile wood characteristics of multiseriate and uniseriate rays of five species of the genus Acer were studied on young trees from France and Canada. Ray height, width, number in width of cells and proportion/mm2 were determined for the earlywood. Variance analysis was used to discriminate the variability of the characteristics of rays.
Dakak, J.E., Keller, R., Bucur, V.
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Juvenile wood characteristics of multiseriate and uniseriate rays of five species of the genus Acer were studied on young trees from France and Canada. Ray height, width, number in width of cells and proportion/mm2 were determined for the earlywood. Variance analysis was used to discriminate the variability of the characteristics of rays.
Dakak, J.E., Keller, R., Bucur, V.
openaire +2 more sources
Predictions of Mature and Total Tree Wood Properties from Juvenile Wood
1998Rarely can accurate predictions of mature wood properties be made from the wood of juvenile trees, but it is very important to learn how to do so as accurately and as soon as possible. It was clearly stated by Loo et al. (1984): “Genetic gains per unit time are inversely proportional to the length of a selection cycle, thus the value of the juvenile ...
Bruce J. Zobel, Jerry R. Sprague
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