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Creator:: Spicer, Rachel and Gartner, Barbara L.
Abstract:: • Compression wood has been shown to reduce stem permeability, but it is not known to what extent it affects leaf‐level processes. Here, we report whole‐plant hydraulic properties of Douglas‐fir (Pseudotsuga menziesii) seedlings induced to form varying amounts of compression wood. • Seedlings were grown under three bending treatments to...
Resource Type:: Article
Full Text:: : results from a model. Plant, Cell & Environment 21: 347–359. Spicer R, Gartner BL. 1998a. How does a

Creator:: Spicer, R., Gartner, Barbara L., and Darbyshire, R. L.
Abstract:: Stem sinuosity is thought to negatively impact wood quality, but no studies have characterized its vertical and radial effects on wood properties. Here we study wood quality along the entire stem in 25-year-old plantation grown Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) trees (32 trees total) that had been scored...
Resource Type:: Article
Full Text:: menziesii) plantation: growth patterns and wood-quality effects R. Spicer, B.L. Gartner, and R.L

Creator:: Gartner, Barbara L., Baker, D. C., and Spicer, R.
Abstract:: The factors that determine sapwood width and volume in a tree are not known. This study asked whether sapwood width is related to a need for stem storage sites. Experiments were conducted on 12 34-year-old Douglas-fir [(Pseudotsuga menziesii (Mirb.) Franco] trees with a 6-7 fold range of leaf areas and...
Resource Type:: Article

Creator:: Gartner, Barbara L., Morrell, Jeffrey J., Freitag, Camille M., and Spicer, Rachel
Abstract:: Heartwood durability of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) was studied as a function of vertical and radial position in boles of trees with a wide range of leaf area/sapwood area ratios. Six 34- year-old trees were harvested from each of three plots established 14 years before: very dense,...
Resource Type:: Article
Full Text:: . Accepted August 9, 1999. B.L. Gartner,1 J.J. Morrell, C.M. Freitag, and R. Spicer. Department of Forest

Creator:: Gartner, Barbara L. and Johnson, G. R.
Abstract:: Stem sinuosity is a highly visible stem-form trait in the leaders of fast-growing Douglas-fir (Pseudotsuga menziesii var. (Mirb.) Franco) trees, yet its cause is unknown. We tested the hypotheses that sinuous stems have longer expanses of primary growth than nonsinuous stems (putting the leader at higher risk curvature, induction of...
Resource Type:: Article
Full Text:: . Spicer, R., Darbyshire, R., and Gartner, B.L. 2000. Sinuous stem growth in a Douglas-fir (Pseudotsuga

Creator:: Gartner, Barbara L., North, Eric M., Johnson, G. R., and Singleton, Ryan
Abstract:: It would be valuable economically to know what are the biological triggers for formation of mature wood (currently of high value) and (or) what maintains production of juvenile wood (currently of low value), to develop silvicultural regimes that control the relative production of the two types of wood. Foresters commonly...
Resource Type:: Article
Full Text:: 2002. B.L. Gartner,1 E.M. North,2 and R. Singleton.Department of Wood Science and Engineering, Oregon

Creator:: Renninger, Heidi J., Gartner, Barbara L., and Meinzer, Frederick C.
Abstract:: Little is known of wood properties in trees that were initially suppressed and subsequently released from suppression. The purpose of this study was to assess differences in growth ring width, specific conductivity (Ks), tracheid dimensions, moisture content, and wood density in suppressed Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and western hemlock...
Resource Type:: Article
Full Text:: conifers. Plant Cell Environ. 13: 427– 436. Spicer, R., and Gartner, B.L. 1998. Hydraulic properties of

Creator:: Pruyn, Michele L., Gartner, Barbara L., and Harmon, Mark E.
Abstract:: • A technique for measuring in vitro respiration was investigated to understand why rates were higher than those reported in vivo and to elucidate trends within mature Pseudotsuga menziesii (Douglas‐fir) trees. • Extracted increment cores were divided into 3–4 radial depths and a gas chromatograph was used to compare respiration...
Resource Type:: Article
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