Index Catalog // ScholarsArchive@OSU

The establishment of Douglas fir reproduction in relation to certain natural environmental factors

Creator:: Tiedemann, Henry
Resource Type:: Masters Thesis

Natural reproduction in Douglas fir stands as affected by the size of opening

Creator:: Lord, Charles Maurice
Resource Type:: Masters Thesis

The influence of distance and floral phenology on pollen gene flow and mating system patterns in a coastal Douglas-fir seed orchard

Creator:: Erickson, Vicky J., 1955-
Resource Type:: Masters Thesis

Natural regeneration of Douglas-fir in uneven-aged stands in southwest Oregon

Creator:: Gerstein, Jared M.
Abstract:: The response to various levels of stand density by natural Douglas-fir regeneration, shrub and sprouting hardwood species was studied in the mixed-evergreen-forests of southwest Oregon. Partial-cut old growth (harvested 22-31 years prior) and thinned evenaged (harvested 9-17 years prior) stand types were used as surrogates for intentionally managed uneven-aged stand...
Resource Type:: Masters Thesis

The clonal development of vine maple during Douglas-fir stand development in the Coast Range of Oregon

Creator:: O'Dea, Mary E.
Abstract:: Natural Douglas-fir stand development is the result of many types of disturbance, both natural and management induced. The magnitude and timing of these disturbances have profound effects on the structure and composition of both the overstory and understory plant communities. Vine maple responds to disturbance by basal sprouting, layering, producing...
Resource Type:: Masters Thesis

Botrytis infection of Douglas-fir seedlings and its control with thiram

Creator:: Halber, Max
Resource Type:: Masters Thesis
Full Text:: Botrytis Infection of Douglas-Fir Seedlings and Its

Root initiation and differentiation in Pseudotsuga menziesii (Mirbel) Franco

Creator:: Bogar, Gerald Dale
Abstract:: Tissue differentiation of the primary root and its associated laterals is reported. Secretory elements are the first of the primary tissues to mature. They appear to be located between the precursory phloem and pericycle in the primary root, but are more closely associated with the pericycle in long lateral roots....
Resource Type:: Masters Thesis
Full Text:: ) FRANCO INTRODUCTION The anatomy of Douglas -fir (Pseudotsuga menziesii (Mirb. ) Franco) has been

Fungi associated with Douglas-fir seed during cone development, seed processing, and storage

Creator:: Gordon, Lewin Roland
Abstract:: The Pacific Coast form of Douglas-fir in natural forest succession is an intermediate species thriving in the Coast Range and Cascade Mountains of the Pacific Northwest. This species constitutes 26 percent of the standing timber in the United States, and 24 percent of the nation's annual timber harvest. Characteristics of...
Resource Type:: Masters Thesis
Full Text:: Fungi Associated with Douglas-Fir Seed During Cone

Cambial divisions in Pseudotsuga menziesii

Creator:: Sisson, Warren Elmer, Jr.
Abstract:: Mitotic activity in the vascular cambium was determined from ten samples from a single internode in each of four Douglas-fir [(Pseudotsuga menziesii (Franco.) Mirb.)]trees. Counts of interphase and mitotic nuclei from nine cores in each sample piece were averaged and expressed as the frequency and mitotic index. The sampling error...
Resource Type:: Masters Thesis
Full Text:: Douglas -fir [(Pseudotsuga menziesii (Franco. ) Mirb. )]trees. Counts of inter - phase and mitotic

Comparative rates of CO₂ production from the forest floor in the Douglas-fir ecosystem

Creator:: Phillips, Michael John
Abstract:: To obtain data on the decomposition of the forest floor, a battery operated electrolytic respirometer was developed making it possible to measure CO₂ evolution from field moist forest floor samples in situ independent of root respiration. Banks of four respirometers powered by two 12-volt batteries were installed in three old...
Resource Type:: Masters Thesis
Full Text:: CO2 PRODUCTION FROM THE FOREST FLOOR IN THE DOUGLAS-FIR ECOSYSTEM Redacted for Privacy ChesterA

Water relations and the root regeneration response of Douglas-fir

Creator:: Cobb, Cheryl Anne
Abstract:: The effect of lifting date and root-pruning treatments on water potential, root regeneration, and shoot growth of six-month-old and three-year-old Douglas-fir seedlings bare-root transplanted into a growth chamber, and sawdust bed, respectively, was studied. Root growth in six-month-old and three-year-old seedlings was highest in February and August respectively. Survival was...
Resource Type:: Masters Thesis
Full Text:: THE ROOT REGENERATION RESPONSE OF DOUGLAS-FIR Abstract approved^ Leslie H. Fuchigami The

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

Creator:: Krahmer, Robert Lee
Resource Type:: Masters Thesis
Full Text:: within a species is known to exist. Douglas-fir (Psudotsuga menzjesjj. (Mirb.) Franco) heartwood samples

A study of several anatomical variables in relation to their effect on tensile strength of Douglas-fir

Creator:: McMinimy, Lawrence Otto
Abstract:: A microscopic study was conducted on specific gravity wafers taken from standard tensile strength specimens of young growth Douglas-fir. Samples were studied to determine the effect of variables such as percent summerwood, fiber length and fibril angle on tensile strength of Douglas-fir. The sample specimens were picked so effects of...
Resource Type:: Masters Thesis
Full Text:: VARIABLES IN RELATION TO THEIR EFFECT ON TENSILE STRENGTH OF DOUGLA Abstract approved A microscopic study

Direct seeding of Douglas fir with special reference to survival

Creator:: Finnis, John Michael
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:: -Fir R. D. Gya am R. L. Krahmer Three methods--radial compression strength, color indicators of

The bleaching response of kraft pulps from fresh and aged commercial Douglas-fir chips

Creator:: Lai, Jinn-Hsing
Resource Type:: Masters Thesis

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

Effect of seedling characteristics on Kraft pulping properties of young Douglas-fir

Creator:: Chia, Shun Nan
Abstract:: A study has been made of the kraft pulping properties of young Douglas-fir trees which were thinned from an experimental plantation. The purpose of the plantation study is to determine, whether two year old seedlings can be selected on the criteria of height and branch count for future desirable tree...
Resource Type:: Masters Thesis

Determining moisture content and moisture sorption in Douglas-fir bark

Creator:: Litvay, John Dennis
Resource Type:: Masters Thesis

The influence of time of establishment and competition of the comparative heights of second growth Douglas-fir trees

Creator:: Krueger, Kenneth W.
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The establishment of Douglas fir reproduction in relation to certain natural environmental factors

Natural reproduction in Douglas fir stands as affected by the size of opening

The influence of distance and floral phenology on pollen gene flow and mating system patterns in a coastal Douglas-fir seed orchard

Natural regeneration of Douglas-fir in uneven-aged stands in southwest Oregon

The clonal development of vine maple during Douglas-fir stand development in the Coast Range of Oregon

Botrytis infection of Douglas-fir seedlings and its control with thiram

Root initiation and differentiation in Pseudotsuga menziesii (Mirbel) Franco

Fungi associated with Douglas-fir seed during cone development, seed processing, and storage

Cambial divisions in Pseudotsuga menziesii

Comparative rates of CO₂ production from the forest floor in the Douglas-fir ecosystem

Water relations and the root regeneration response of Douglas-fir

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

A study of several anatomical variables in relation to their effect on tensile strength of Douglas-fir

Direct seeding of Douglas fir with special reference to survival

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

The bleaching response of kraft pulps from fresh and aged commercial Douglas-fir chips

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

Effect of seedling characteristics on Kraft pulping properties of young Douglas-fir

Determining moisture content and moisture sorption in Douglas-fir bark

The influence of time of establishment and competition of the comparative heights of second growth Douglas-fir trees

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