Index Catalog // ScholarsArchive@OSU

Creator:: Sharp, R. M., Western Dry Kiln Clubs, and Western Dry Kiln Clubs. Meeting (19th : 1968 : Portland, Or.)
Resource Type:: Conference Proceeding
Full Text:: PROCEDURES AND COSTS FOR SEASONING WESTERN HEMLOCK R. M. Sharp

Creator:: Peterson, M. G., Dietterich, H. R., and Lachenbruch, Barbara
Abstract:: We sampled boles, branches, and roots of four Douglas-fir (Pseudotsuga menziesii var. menziesii) trees to learn a) whether branches and roots have a zone of juvenile wood, defined as a zone with progressive changes in wood density and/or tracheid length from the pith outward at successively greater cambial ages, and...
Resource Type:: Article
Full Text:: Research. REFERENCES ABDEL-GADIR, A. Y., R. L. KRAHMER, AND M. D. MCKIMMY. 1993a. Intra-ring variations

Creator:: Barnard, David M., Meinzer, Frederick C., Lachenbruch, Barbara, McCulloh, Katherine A., Johnson, Daniel M., and Woodruff, David R.
Abstract:: In the Pacific north-west, the Cascade Mountain Range blocks much of the precipitation and maritime influence of the Pacific Ocean, resulting in distinct climates east and west of the mountains. The current study aimed to investigate relationships between water storage and transport properties in populations of Douglas-fir (Pseudotsuga menziesii) and...
Resource Type:: Article

Creator:: Meinzer, Frederick C., McCulloh, Katherine A., Lachenbruch, Barbara, Woodruff, David R., and Johnson, Daniel M.
Abstract:: Given the fundamental importance of xylem safety and efficiency for plant survival and fitness, it is not surprising that these are among the most commonly studied features of hydraulic architecture. However, much remains to be learned about the nature and universality of conflicts between hydraulic safety and efficiency. Although selection...
Resource Type:: Article

Creator:: Woodruff, D. R., Meinzer, Frederick C., Lachenbruch, Barbara, and Johnson, D. M.
Abstract:: The gravitational component of water potential and frictional resistance during transpiration lead to substantial reductions in leaf water potential (Ψl) near the tops of tall trees, which can influence both leaf growth and physiology. We examined the relationships between morphological features and gas exchange in foliage collected near the tops...
Resource Type:: Article
Full Text:: significant (r 2 = 0.32, P = 0.056; Table 1). Foliar d13C increased significantly with height by 0.042& m�1

Creator:: Woodruff, David R., McCulloh, Katherine A., Warren, Jeffrey M., Meinzer, Frederick C., and Lachenbruch, Barbara
Abstract:: This study investigated the mechanisms involved in the regulation of stomatal closure in Douglas-fir and evaluated the potential impact of compensatory adjustments in response to increasing tree height upon these mechanisms. In the laboratory, we measured leaf hydraulic conductance (Kleaf) as leaf water potential (Yl) declined for comparison with in...
Resource Type:: Article
Full Text:: Douglas-fir DAVID R. WOODRUFP2, KATHERINE A. MCCULLOH23, JEFFREY M. WARREN', FREDERICK C. MEINZER1

Creator:: Meinzer, Frederick C., Johnson, Daniel M., Lachenbruch, Barbara, McCulloh, Katherine A., and Woodruff, David R.
Abstract:: 1. The xylem pressure inducing 50% loss of hydraulic conductivity due to embolism widely used for comparisons of xylem vulnerability among species and across aridity However, despite its utility as an index of resistance to catastrophic xylem failure drought, P5o may have no special physiological relevance in the context of...
Resource Type:: Article
Full Text:: increases in transpira- tion. Of course, sharp increases in R would increase 1:, but at the cost of

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:: m 2 ) 0 5 10 15 20 total EW a R in g w id th (m m ) L a te w o o d p ro p o rt io

Creator:: Collins, B. R., Parke, J. L., Lachenbruch, Barbara, and Hansen, E. M.
Abstract:: Tanoak (Lithocarpus densiflorus (Hook. and Arn.) Rehder) is highly susceptible to sudden oak death, a disease caused by the oomycete Phytophthora ramorum Werres, De Cock & Man in’t Veld. Symptoms include a dying crown, bleeding cankers, and, eventually, death of infected trees. The cause of mortality is not well understood,...
Resource Type:: Article
Full Text:: on hydraulic conductivity and tylosis formation in tanoak sapwood Bradley R. Collins, Jennifer L

Creator:: Domec, Jean-Christophe, Lachenbruch, Barbara, Meinzer, Frederick C., Woodruff, David R., Warren, Jeffrey M., and McCulloh, Katherine A.
Abstract:: Despite renewed interest in the nature of limitations on maximum tree height, the mechanisms governing ultimate and species-specific height limits are not yet understood, but likely involve water transport dynamics. Tall trees experience increased risk of xylem embolism from air-seeding because tension in their water column increases with height due...
Resource Type:: Article
Full Text:: -Christophe Domec*†, Barbara Lachenbruch‡†, Frederick C. Meinzer§†, David R. Woodruff§, Jeffrey M. Warren

ScholarsArchive@OSU