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The influence of seed source origin and phenological characteristics on wood quality in a young Douglas-Fir Provenance Plantation

Creator:: Robinson, Walter P.
Abstract:: The relationships of several wood quality traits with seed origin and phenological characteristics, measured at a young age, were tested from six seed sources in a young Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) provenance plantation. The wood quality traits measured were wood density, uniformity of wood density, percentage latewood, fiber length,...
Resource Type:: Masters Thesis

Evaluating radial compression, color indicator and micro-toughness tests to detect early decay in Douglas-fir

Creator:: Smith, Susan M.
Abstract:: Three methods--radial compression strength, color indicators of decay and micro-toughness, an examination of tracheid fracture patterns, were evaluated for detection of early decay and for application to field use. Three-eighth-inch diameter plugs 3/4-inch long, cut from the sapwood and heartwood of a Douglas-fir pole free of decay, were decayed by...
Resource Type:: Masters Thesis
Full Text:: transmission poles in the Northeastern United States by R. A. Zabel, Frances F. Lombard and A. M. Kenderes (42

Factors affecting inter-tree root contact and the transmission of Phellinus weirii in young-growth Douglas-fir

Creator:: Reynolds, Keith M.
Abstract:: Groups of second-growth Douglas-fir (Mirb.) Franco were excavated in plots of two to six trees on two sites in the vicinity of Cowichan Lake, Vancouver Is., British Columbia. Eleven excavation plots provided 36 trees which could be studied in pairs (a total of 50 pairs) in order to ascertain the...
Resource Type:: Masters Thesis
Full Text:: PHELLINUS WEIRII IN YOUNG-GROWTH DOUGLAS-FIR Abstract approved: Redacted for Privacy tverett M. Hansen

Postharvest water relations and needle abscission in cut trees of Douglas-fir (Pseudotsuga menziesii Mirb. Franco)

Creator:: Montano, Jose M.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Jose M. Montano for the degree

Comparison of Phellinus weirdi root rot damage in a 60-year-old Douglas-fir (Pseudotsuga menziesii) stand with the damage in the preceding old-growth stand

Creator:: Tkacz, Borys M.
Abstract:: Laminated root rot of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) caused by the fungus Phellinus weirii (Murr.)Gilbertson was studied in two successive stands in the Oregon Coast Range. Damage due to the disease in a 60-year-old second-growth stand was compared with incidence in the preceding 300-year-old stand on the same site....
Resource Type:: Masters Thesis
Full Text:: for Privacy Everett M. Hansen Laminated root rot of Douglas-fir (Pseudotsuga menziesii (Mirb

The effect of forest stand thinning on selected strength and pulp-ing characteristics of Douglas-fir

Creator:: Johnson, Donna A.
Abstract:: The purpose of this study was to determine if amount and kind of thinning had an effect on wood specific gravity, modulus of rupture, modulus of elasticity, growth rate, or pulp yield and kappa number. The study involved 24 1/5-acre plots, three plots in each of eight thinning treatments. The...
Resource Type:: Masters Thesis
Full Text:: for juvenile wood and -0.219 for mature wood For the wedge specific gravity and basal area the r

Effect of thinning and fertilization on wood properties and intra-ring characteristics in young Douglas-fir

Creator:: Bodner, Josef
Abstract:: The purpose of this study was to determine if thinning, fertilization or a combination of thinning and fertilization had an effect on overall average specific gravity, modulus of elasticity, modulus of rupture, fiber length and intra-ring characteristics. Material for this experiment consisted of 7 trees randomly selected from each of...
Resource Type:: Masters Thesis
Full Text:: . The staining method in this particular preparation was proposed by R. M. Echols (12). The separated

Some anatomical features of Douglas-fir wood rated permeable and refractory

Creator:: Krahmer, Robert Lee
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF pbert Lee Krahmer for the M. S. in

Genetic variations in length of active growth period among races of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

Creator:: Irgens-Moller, Helge
Resource Type:: Dissertation
Full Text:: ; to Dr. J. R. Cowan for guidance during the initial phase of the study; to Dr. W. K. Ferrell, and to

Relative values of Douglas fir lumber

Creator:: Weed, Oscar F.
Resource Type:: Undergraduate Thesis
Full Text:: m .7 on.o 86.7 75.9 2xfi r/t, 116.7 95 111.7 90 86.7 76.7 8-10-12 120 93.4 115 93.4 90 75 14

ScholarsArchive@OSU

The influence of seed source origin and phenological characteristics on wood quality in a young Douglas-Fir Provenance Plantation

Evaluating radial compression, color indicator and micro-toughness tests to detect early decay in Douglas-fir

Factors affecting inter-tree root contact and the transmission of Phellinus weirii in young-growth Douglas-fir

Postharvest water relations and needle abscission in cut trees of Douglas-fir (Pseudotsuga menziesii Mirb. Franco)

Comparison of Phellinus weirdi root rot damage in a 60-year-old Douglas-fir (Pseudotsuga menziesii) stand with the damage in the preceding old-growth stand

The effect of forest stand thinning on selected strength and pulp-ing characteristics of Douglas-fir

Effect of thinning and fertilization on wood properties and intra-ring characteristics in young Douglas-fir

Some anatomical features of Douglas-fir wood rated permeable and refractory

Genetic variations in length of active growth period among races of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

Relative values of Douglas fir lumber

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