Index Catalog // ScholarsArchive@OSU

Creator:: Grotta, A. T., Leichti, R. J., Gartner, Barbara L., and Johnson, G. R.
Abstract:: ASTM standard sizes for bending tests (either 50 × 50 mm or 25 × 25 mm in cross-section) are not always suitable for research purposes that characterize smaller sections of wood. Moreover, the ASTM standards specify loading the sample on the longitudinal-tangential surface. If specimens are small enough, then the...
Resource Type:: Article
Full Text:: . 207–212 © 2005 by the Society of Wood Science and Technology † Member of SWST. EFFECT OF GROWTH RING

Creator:: Gartner, Barbara L., Robbins, J. M., and Newton, M.
Abstract:: To study whether pruning young Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii) hastens the transition from juvenile to mature wood, we investigated the effects on wood properties in an intensively managed young plantation in the Coast Range of Oregon. Ten years after trees were pruned to a fixed height (3.4...
Resource Type:: Article
Full Text:: , pp. 304–313 © 2005 by the Society of Wood Science and Technology EFFECTS OF PRUNING ON WOOD DENSITY

Creator:: DeBell, Jeffrey D., Morrell, Jeffrey J., and Gartner, Barbara L.
Abstract:: The high decay resistance of western redcedar (Thuja plicata Donn) is due to the presence of toxic extractives, called tropolones, in the heartwood. Therefore, tropolone content may be used as an indicator of decay resistance. With increment core-sized samples of western redcedar heartwood, we used gas chromatography to measure tropolone...
Resource Type:: Article

Creator:: Singleton, Ryan, DeBell, Dean S., and Gartner, Barbara L.
Abstract:: Extractives can account for between 1 to 20% of the oven-dry weight of wood of various tree species and can influence wood density values appreciably. Removing these chemical deposits (extraction)in wood samples can help establish a consistent baseline for comparing wood densities where extractives are expected to differ between sample...
Resource Type:: Article

Creator:: Gartner, Barbara L.
Abstract:: This paper hypothesizes a correlation in some species between the cambial age of transition from core (juvenile) to outer (mature) wood and the cambial age of transition from photosynthetic to non-photosynthetic bark. Secondly, this paper hypothesizes that the relationship is causal: a signal produced in relation to the photosynthetic bark...
Resource Type:: Article

Creator:: Gartner, Barbara L., Lei, Hua, and Milota, Michael R.
Abstract:: Six 40-year-old red alders (Alnus rubra Bong.) were harvested from a mixed stand of A. rubra and big-leaf maple (Acer macrophyllum Pursh) in the Oregon Coast Range to evaluate variation in their wood characteristics at two heights. Because the trees had a slight lean (4 to 14°), we sampled along...
Resource Type:: Article

Creator:: Morrell, Jeffrey J., Paillard, Alice, Gnoblei, Dominique, Gartner, Barbara L., Milota, Michael R., and Rhatigan, Ronald G.
Abstract:: The air permeability of western hemlock from coastal forests in western Oregon was assessed. Permeability varied widely among trees, as well as by position within individual trees. Permeability tended to decrease with distance inward from the bark, a trend implying that this species produces a heartwood zone. These variations may...
Resource Type:: Article

Creator:: DeBell, Dean S., Singleton, Ryan, Harrington, Constance A., and Gartner, Barbara L.
Abstract:: Cross-sectional disks were cut at two stem heights (1.5 m and 3.0 m) from 9-year-old trees of three Populus clones grown in an intensively-cultured plantation in western Washington. At age 1.5 years, when the trees averaged 3.4 m tall, half of the trees were pruned by removing all branches below...
Resource Type:: Article

Creator:: Bouffier, Laurent A., Gartner, Barbara L., and Domec, Jean-Christophe
Abstract:: The Willamette Valley (WV) race of ponderosa pine (Pinus ponderosa) is being widely planted for timber in the Willamette Valley, western Oregon, because it grows in habitats that are either too wet or too dry for Douglas-fir (Pseudotsuga menziesii). Compared to the eastern Cascade Mountains (CM), the WV has 3...
Resource Type:: Article

Creator:: Taylor, Adam M., Gartner, Barbara L., and Morrell, Jeffrey J.
Abstract:: This paper reviews literature on the formation of heartwood and on the components that affect natural durability. It includes discussion about the function of heartwood in living trees, factors influencing the natural durability of heartwood, the process of heartwood formation, and variations in heartwood quantity and quality. Heartwood formation is...
Resource Type:: Article

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