Index Catalog // ScholarsArchive@OSU

Fertilization of 2-0 ponderosa pine seedlings in the nursery and field : morphology, physiology, and field performance

Creator:: Gleason, John F.
Abstract:: Two-year-old ponderosa pine (Pinus ponderosa Laws.) from two seed sources were grown at two nurseries. The Fremont seed source was raised at Bend and Stone Nursery; the Ochoco was grown at only the Bend Nursery. The seedlings were fertilized in late September-early October with nitrogen (N) or nitrogen plus potassium...
Resource Type:: Masters Thesis

Physiology of drought stress in Pinus ponderosa (Dougl. ex Laws.) and the influence of low irradiance

Creator:: Vance, Nan C.
Resource Type:: Dissertation

Interactions between fire and dwarf mistletoe in ponderosa pine

Creator:: Koonce, Andrea Lavender
Abstract:: The effects of dwarf mistletoe on fuel in precommercial ponderosa pine stands: Dwarf mistletoe and healthy stands were sampled by vertical planar intercept and whole tree biomass sampling techniques to measure fuel loading in ground and crown fuels. Differences in size, distribution, and vitality of fuel were shown to depend...
Resource Type:: Dissertation

Geographic variation in central Oregon ponderosa pine (Pinus ponderosa Laws.) : seed germination; seed, wing, and cone morphology; seed color

Creator:: Weber, John C., 1948-
Abstract:: Geographic variation was investigated among 225 locations from five geographically disjunct regions in central Oregon. Characters included: germination speed and uniformity in two test environments differing in stratification period and incubation temperature; weight, three dimensions and three 'angles' of seeds; weight and three dimensions of wings; cone length and scale...
Resource Type:: Dissertation
Full Text:: in Central Oregon Ponderosa Pine (Pinus Ponderosa Laws.): Seed Germination; Seed, Wing and Cone

Genetic variation and mating system of ponderosa pine in the Willamette Valley of Oregon

Creator:: Gooding, Geoffrey David
Abstract:: The population genetic structure of ponderosa pine (Pinus ponderosa Dougi.) in the Willamette Valley of Oregon was investigated. Cones were collected from native stands of ponderosa pine from the Willamette Valley, eastern Oregon, southwest Oregon and the Puget Sound Basin of Washington. Seeds were subjected to isozyme analysis of 12...
Resource Type:: Masters Thesis
Full Text:: Variation and Mating Svstem of Ponderosa Pine in the Willamette Vallev of Oregon. Abstract approved

Effects of fall lifting and long-term freezer storage on ponderosa pine seedling physiology and quality

Creator:: Omi, Steven Katsu
Abstract:: Two-year-old ponderosa pine (Pinus ponderosa Dougl. ex Laws.) seedlings from two Oregon seed sources were lifted three times in the fall, stored below freezing (-1.5°C), and compared to seedlings that were handled conventionally (spring lifting followed by short-term cold storage, 2-4°C). Based on patterns of budbreak in a greenhouse and...
Resource Type:: Dissertation

Stress response as a basis for disease susceptibility in Ponderosa Pine

Creator:: Koonce, Andrea
Abstract:: Trees stressed by artificial and natural means were sampled for response in growth and vigor, carbohydrate content, resin pressure characteristics, and water relations. Tree response was found to reflect both the severity and type of stress imposed. Crown color and appearance were reliable indicators of prolonged stress and advanced decline...
Resource Type:: Masters Thesis
Full Text:: SUSCEPTIBILITY IN PONDEROSA PINE Abstract Approved: Signature redacted for privacy. Trees stressed by

Long-term effects of prescribed fire on nitrogen availability in ponderosa pine stands in central Oregon

Creator:: Monleon-Moscardo, Vicente J.
Abstract:: The effects of prescribed burning on the rates of recent litter decomposition, nitrogen and phosphorus release from litter, soil total and inorganic nitrogen pools, and net nitrogen mineralization were determined in ponderosa pine sites that had been burned 0.3, 5 or 12 years earlier. Prescribed burning decreased litter decomposition rates...
Resource Type:: Masters Thesis

Structure and hydraulic function of xylem in two tree species with contrasting amounts of sapwood, Pseudotsuga menziesii and Pinus ponderosa

Creator:: Domec, Jean-Christophe
Abstract:: Every wood anatomist knows that the wood near the center of a tree (juvenile wood) differs from the wood laid down at some distance from the pith (mature wood), and that the wood produced during the spring (earlywood) differs from the wood produced during the summer (latewood). There is a...
Resource Type:: Dissertation

The influence of antidesiccants on field performance and physiology of 2+0 ponderosa pine (Pinus ponderosa Dougl.) seedlings

Creator:: Vera-Castillo, J. A. Gil
Abstract:: This thesis research examines the effects of film-forming antidesiccants applied to dormant pondexosa pine (Pinus ponderosa Dougl.) seedlings after being lifted and to actively growing seedlings. The basic proposition was that antidesiccants would have a positive effect on reducing water loss in ponderosa pine seedlings. In order to evaluate the...
Resource Type:: Dissertation

ScholarsArchive@OSU

Fertilization of 2-0 ponderosa pine seedlings in the nursery and field : morphology, physiology, and field performance

Physiology of drought stress in Pinus ponderosa (Dougl. ex Laws.) and the influence of low irradiance

Interactions between fire and dwarf mistletoe in ponderosa pine

Geographic variation in central Oregon ponderosa pine (Pinus ponderosa Laws.) : seed germination; seed, wing, and cone morphology; seed color

Genetic variation and mating system of ponderosa pine in the Willamette Valley of Oregon

Effects of fall lifting and long-term freezer storage on ponderosa pine seedling physiology and quality

Stress response as a basis for disease susceptibility in Ponderosa Pine

Long-term effects of prescribed fire on nitrogen availability in ponderosa pine stands in central Oregon

Structure and hydraulic function of xylem in two tree species with contrasting amounts of sapwood, Pseudotsuga menziesii and Pinus ponderosa

The influence of antidesiccants on field performance and physiology of 2+0 ponderosa pine (Pinus ponderosa Dougl.) seedlings

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