Index Catalog // ScholarsArchive@OSU

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

Physiological control of fine root turnover in Douglas-fir

Creator:: Marshall, John D. (John David), 1956-
Abstract:: To determine whether shading increases drought-induced root mortality by changing the chemical composition of roots, I conducted an experiment in which high and low light treatments in combination with high and low soil moisture treatments were applied to seedlings of Douglas-fir (Pseudotsuqa menziesii Mirb. Franco). Because synthesis of suberin (a...
Resource Type:: Dissertation

Diurnal and seasonal changes in xylem water potential, stomatal conductance and abscisic acid in five different habitat types of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Murphy, Ellyn Margaret
Abstract:: Sapling Douglas-fir trees on five sites in the Coastal and Cascade Mountain ranges of Oregon were measured five times during the year from the summer of 1977 through the spring of 1978 for diurnal patterns of xylem water potential, stomatal conductance and abscisic acid. Vapor pressure deficit and solar radiation...
Resource Type:: Masters Thesis

Abscisic acid levels in relation to stomatal behavior during drought and recovery in contrasting ecotypes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Newville, Edward G.
Abstract:: Foliage of Douglas-fir seedlings [Pseudotsuga menziesii (Mirb.) Franco] from two contrasting environments was sampled during progressive stages of two consecutive cycles of induced drought for leaf resistance, plant water potential , and abscisic acid content (ABA). One group of seedlings was placed in a controlled environment room while another group...
Resource Type:: Masters Thesis

Distribution of light within the crown of an open-grown Douglas-fir

Creator:: Ungs, M. J. (Michael J.)
Abstract:: A systematic investigation was made of the distribution of short wave radiation within the crown of an open-grown Douglas-fir tree. The study tree was 23 years old, 14 meters tall and had a maximum crown diameter of about ten meters. Global radiation was measured every 15 cm along eight different...
Resource Type:: Dissertation

Genecology of Douglas-fir from southwestern Oregon

Creator:: White, Timothy L., 1951-
Abstract:: This thesis is divided into three chapters. For all chapters, the experiments described deal with the responses of all or a subset of 72 wind-pollinated Douglas-fir families from 36 different locations in southwestern Oregon. Wind-pollinated seed was collected from each of two trees at each of the 36 locations. The...
Resource Type:: Dissertation

Variation in the foliar nutrient status of several Douglas-fir provenances

Creator:: Stevens, Roderick D.
Abstract:: From a preliminary 1969 foliar analysis, eight provenances were chosen from the sixteen included in a region-wide, reciprocal Doulgas-fir provenance study for further study of variation in foliar nutrition. In the fall of 1969 separate foliar samples were collected from ten trees per provenance at each of ten plantations ranging...
Resource Type:: Dissertation

Seasonal variation in leaf weight and nitrogen content of Douglas-fir plantations in the Coast Range and Cascade Mountains of western Oregon

Creator:: Smith, Robert Bruce
Abstract:: Seasonal variations in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) leaf weight and nitrogen content were measured in Oregon's Coast and western Cascade Ranges. Current and older foliage from thinned and unthinned stands were sampled monthly from October, 1978 to September, 1979. Changes in leaf weight per unit area of foliage and...
Resource Type:: Masters Thesis

Growth and development of young Douglas-fir in relation to intra- and inter-specific competition

Creator:: Zedaker, Sheperd M.
Abstract:: This thesis explored the relationships between the growth of Douglas-fir seedlings and light and moisture resource availability as influenced by competitor type and density in the Oregon Coast Range. Twelve 360 m2 Nelder plots, encompassing a range of 300 to 15,000 cm2 per plant in 48 spokes, were established in...
Resource Type:: Dissertation

Growth behavior of Douglas-fir reproduction in the shade of managed forest in the interior Coast Range of Oregon

Creator:: Del Rio, Ernest
Abstract:: During the past 20 years, repeated thinning of a Douglas-fir forest, now 65 years old, has allowed desired limits of basal area to be maintained. In the process, the understory environment has altered sufficiently to allow Douglas-fir reproduction to establish in abundance. The forest is located on the east side...
Resource Type:: Masters Thesis

Effect of auxins, cytokinins and nutrition on adventitious bud formation in tissues of Douglas-fir grown in culture

Creator:: Thompson, David George
Abstract:: Vegetative propagation is most effective when individuals of demonstrated superior characteristic can be propagated. For this reason, a method for the induction of adventitious buds on cultured Douglas-fir shoot tips from 20-25 year old trees was developed. Douglas-fir shoot tips failed to survive and grow on a full strength Murashige...
Resource Type:: Dissertation

First-year response of Douglas-fir after release from snowbrush ceanothus

Creator:: Petersen, Terry D.
Abstract:: The release of Douglas-fir from competition with snowbrush (Ceanothus velutinus Dougl.) has often been suggested as a way to improve conifer yield in the western Cascades. This study investigated this possibility by describing changes in the availability of water and light and the response of Douglas-fir to the changing environment,...
Resource Type:: Masters Thesis

Geographic and seasonal variation in photosynthetic efficiency and capacity of Rocky Mountain Douglas-fir, Pseudotsuga menziesii var. glauca

Creator:: Pope, Walter William
Abstract:: Net photosynthesis was measured for photosynthetic light efficiency and capacity on two-year-old plants from eight different seed sources in three measurement periods. The measurement periods corresponded to the physiological periods 1) prior to bud swelling, 2) after needle elongation, and 3) predormancy. Measurement period differences in both photosynthetic efficiency and...
Resource Type:: Dissertation
Full Text:: ROCKY MOUNTAIN DOUGLAS-FIR, PSEUDOTSUGA MENZIESII VAR .. GLAUCA Abstract approved: Signature

Starch content and crown growth in two Douglas-fir stands

Creator:: Kilpatrick, Kran James
Abstract:: The objectives of this investigation were to measure the seasonal and diurnal variations of starch as well as to relate these variations to growth of the trees. This study also microscopically examined the needles to determine if starch exists in granular form in Douglas-fir. The objectives were designed to gain...
Resource Type:: Masters Thesis
Full Text:: Douglas-fir at bud burst. A three piece overlay. 15,16,17 2 Seasonal starch variation with means

The influence of seral Coast Range vegetation on the growth habit of juvenile Douglas-fir

Creator:: Howard, Kerry Megan
Abstract:: A detailed analysis was performed on the juvenile growth of six types of Douglas-fir stock under the influence of typical seral Coast Range vegetation. Objectives were to analyze competitive influences important to the growth of tree seedlings and evaluate differences between stock type characteristics and growth patterns in response to...
Resource Type:: Masters Thesis

Ectomycorrhizal inoculation of Douglas-fir nursery stock with commercially produced inoculum

Creator:: Hung, Ling-ling L.
Abstract:: Nine species of ectomycorrhizal fungi were grown in liquid media over a pH range of 2-7. Species fell into five major groups: (1) growth significantly best only at the optimal pH, (2) growth increased with increase of pH, (3) significantly best growth spans three pH units, (4) spans four pH...
Resource Type:: Dissertation

The effects of winter plant moisture stress on survival and growth of 2+0 Douglas-fir seedlings

Creator:: Daniels, Thomas Gary
Abstract:: The effects of winter plant moisture stress (P145) on bare-root 2+0 Douglas-fir (Pseudotsuga menziesii (Mirb.) Frañco) seedlings during nursery lifting and processing were studied. Seedlings were undercut at Ca. 4, 12, and 20 atm PMS during mid-February. Half of the seedlings undercut at 12 and 20 atm were not moistened...
Resource Type:: Masters Thesis

A procedure for the purification and quantitation of abscisic acid : and its application to a study of abscisic acid concentrations in needles of cold stored Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings

Creator:: Bell, Thomas Evans
Abstract:: A rapid and efficient procedure that required no partitioning was developed for the purification of abscisic acid (AbA) from the needles of Douglas-fir seedlings. Extracted needle pigments were removed by a PVP column and the eluted AbA was concentrated on a DEAE column. The AbA was eluted from the DEAE...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

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

Physiological control of fine root turnover in Douglas-fir

Diurnal and seasonal changes in xylem water potential, stomatal conductance and abscisic acid in five different habitat types of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Abscisic acid levels in relation to stomatal behavior during drought and recovery in contrasting ecotypes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Distribution of light within the crown of an open-grown Douglas-fir

Genecology of Douglas-fir from southwestern Oregon

Variation in the foliar nutrient status of several Douglas-fir provenances

Seasonal variation in leaf weight and nitrogen content of Douglas-fir plantations in the Coast Range and Cascade Mountains of western Oregon

Growth and development of young Douglas-fir in relation to intra- and inter-specific competition

Growth behavior of Douglas-fir reproduction in the shade of managed forest in the interior Coast Range of Oregon

Effect of auxins, cytokinins and nutrition on adventitious bud formation in tissues of Douglas-fir grown in culture

First-year response of Douglas-fir after release from snowbrush ceanothus

Geographic and seasonal variation in photosynthetic efficiency and capacity of Rocky Mountain Douglas-fir, Pseudotsuga menziesii var. glauca

Starch content and crown growth in two Douglas-fir stands

The influence of seral Coast Range vegetation on the growth habit of juvenile Douglas-fir

Ectomycorrhizal inoculation of Douglas-fir nursery stock with commercially produced inoculum

The effects of winter plant moisture stress on survival and growth of 2+0 Douglas-fir seedlings

A procedure for the purification and quantitation of abscisic acid : and its application to a study of abscisic acid concentrations in needles of cold stored Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings

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