Index Catalog // ScholarsArchive@OSU

Creator:: Anekonda, T. S., Lomas, M. Christine, Adams, W. T., Kavanagh, Kathleen L., 1955-, and Aitken, S. N.
Abstract:: Abstract: Genetic variation in drought hardiness traits and their genetic correlations with growth potential and17re1c6overy traits were investigated in 39 full-sib families of coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) from southwestern British Columbia. Seedlings of these families were grown in raised nursery beds and subjected to three moisture...
Resource Type:: Article
Full Text:: treatments (i.e., Ψpd > –1 MPa), approximately 109 L was applied to each main plot; this amount was increased

Creator:: Grotta, Amy T., Gartner, Barbara L., and Radosevich, Steven R.
Abstract:: The relationships among stand structure, Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) branch characteristics, and red alder (Alnus rubra (Bong.)) stem form attributes were explored for 10- to 15-year-old trees growing in mixed Douglas-fir – red alder plantations. Treatments included a range of species proportions, and red alder was either planted simultaneously...
Resource Type:: Article
Full Text:: stem quality in mixed red alder – Douglas-fir plantations Amy T. Grotta, Barbara L. Gartner, and

Creator:: Hassani, Badre T., LeMay, Valerie, Marshall, Peter L., Temesgen, Hailemariam, and Zumrawi, Abdel-Azim
Abstract:: Two imputation techniques for predicting natural regeneration in complex stands prevalent in southeastern British Columbia (BC) were compared using data from the Interior Cedar-Hemlock moist warm subzone variant 2 (ICHmw2) in the vicinity of Nelson, BC. Imputation approaches offer advantages over other modeling approaches in that they provide estimates of...
Resource Type:: Article
Full Text:: Regeneration imputation models for complex stands of southeastern British Columbia by Badre T. Hassani1

Creator:: Eskelson, Bianca N.I., Temesgen, Hailemariam, Lemay, Valerie, Barrett, Tara M., Crookston, Nicholas L., and Hudak, Andrew T.
Abstract:: Almost universally, forest inventory and monitoring databases are incomplete, ranging from missing data for only a few records and a few variables, common for small land areas, to missing data for many observations and many variables, common for large land areas. For a wide variety of applications, nearest neighbor (NN)...
Resource Type:: Article
Full Text:: . Remote Sensing of Environment, 82, 397�416. Hudak, A. T., Crookston, N. L., Evans, J. S., Falkowski, M

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:: T. Grotta1 Former Faculty Research Assistant Robert. J. Leichti† Associate Professor and Barbara

Creator:: Grotta, A. T., Gartner, Barbara L., Radosevich, S. R., and Huso, M.
Abstract:: To better understand the influence of competition on wood formation and wood quality in Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco), patterns of cambial growth and latewood production were examined for one growing season in 15-year-old plantations with similar densities but differing Douglas-fir/red alder (Alnus rubra Bong.) ratios. The treatments consisted of...
Resource Type:: Article
Full Text:: %). Effect Num DF Den DF F Value P t 4 8 0.40 0.80 d l 73

Creator:: Johnson, G. R., Grotta, Amy T., Gartner, Barbara L., and Downes, Geoff
Abstract:: Many stands of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) near coastal areas of Oregon and Washington are heavily infected with the foliar pathogen causing Swiss needle cast (SNC) disease, and yet there is very little research on the resulting wood quality. Modulus of elasticity (MOE), modulus of rupture (MOR), microfibril angle...
Resource Type:: Article
Full Text:: on wood quality of Douglas-fir G.R. Johnson, Amy T. Grotta, Barbara L. Gartner, and Geoff Downes

Creator:: Jayawickrama, K. J. S., Ye, T. Z., Gupta, R., and Cherry, M. L.
Resource Type:: Technical Report
Full Text:: n 5 0 F o r e s t R e s e a r c h L a b o r a t o r y IncludIng Wood StIffneSS In tree

Creator:: Kellogg, L. D. (Loren D.), Davis, Chad T. (Chad Thomas), and Oregon State University. Forest Research Laboratory
Abstract:: Harvesting productivity rates and costs were determined for three silvicultural treatments used in commercial ground-based thinning of young stands to achieve timber management objectives and enhance wildlife habitat. Treatment definitions were based on residual trees per acre (tpa) after thinning. The treatments were light thin (115 residual tpa), light thin...
Resource Type:: Technical Report
Full Text:: i o n 4 8 F o r e s t R e s e a r c h L a b o r a t o r y TracTor Thinning ProducTiviTy and

Creator:: Oregon State University. Forest Research Laboratory, Gholz, Henry L., Grier, C. C., Campbell, A. G., and Brown, A. T.
Abstract:: Reliable estimates of plant biomass and leaf surface area are essential for studying primary production, nutrient cycling, hydrology, wildlife management, and fire. This paper presents equations that can be used to make such estimates for most plant species-trees, shrubs, and herbs-dominant in western and central Oregon.' We also document the...
Resource Type:: Technical Report
Full Text:: issue Does not circulate _, estimating biomass and leaf area of plants in the pacific northwest H. L

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