Index Catalog // ScholarsArchive@OSU

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

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

Relative low temperature tolerance of lodgepole and ponderosa pine seedlings

Creator:: Berntsen, Carl M.
Abstract:: The hypothesis is explored that lodgepole pine at the seedling emergence period is more resistant to low temperatures than ponderosa pine. Differential tolerance between species to low temperatures is then related to the prevalence of lodgepole pine in frost pocket areas in central Oregon to the exclusion of ponderosa pine....
Resource Type:: Dissertation

Physiological relationships between dwarf mistletoe and ponderosa pine

Creator:: McDowell, Larry Leon
Abstract:: A comparative study was made of Pinus ponderosa Laws, and Arceuthobium campylopodum Engelm. f . campylopodum to determine (1) whether or not the parasite or parasitized tissues accumulate abnormal concentrations of minerals, (2) whether or not there was evidence of a blockage of mineral translocation in the phloem because of...
Resource Type:: Dissertation
Full Text:: PHYSIOLOGICAL RELATIONSHIPS BETI,IrEEN DWARF MISTLETOE AND PONDEROSA PINE (Major professor) Abstract A

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

Chemical applications for control of armillaria root rot of Ponderosa pine

Creator:: Filip, Gregory M.
Abstract:: Root rot caused by Armillariella mellea creates roughly circular disease centers of infected dead and dying trees in the younggrowth ponderosa pine forest under study. Research objectives concerning chemical control of the disease were: 1) to test the effectiveness of certain chemicals in protecting living pines adjacent to disease centers...
Resource Type:: Dissertation
Full Text:: APPLICATIONS FOR CONTROL OF ARMILLARIA ROOT ROT OF PONDEROSA PINE Abstract approved: Redacted for Privacy

Infection of stressed ponderosa pines by Armillariella mellea from indigenous and artificial inoculum sources

Creator:: Fuller, Lloyd Randolph
Abstract:: Armillariella mellea (Vahl. ex Fr. ) Karst. was grown aseptically in hazel stems (Corylus cornuta var. californica) which were used in the forest to infect 290 ponderosa pines (Pinus ponderosa Laws.) which had been "stressed" in five different manners plus two control groups. All trees were inoculated twice giving a...
Resource Type:: Dissertation
Full Text:: ponderosa pine stands was found to be influenced by silvicultural histories of the stands. The highest

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

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Creator:: Beckman, Kent Mardsen
Abstract:: Longevity and germination of seed of western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum) of ponderosa pine (Pinus ponderosa Laws.) was investigated to determine: 1) the influence of humidity and temperature on seed viability and deterioration during storage; 2) the physiology of seed dormancy; 3) the composition of seed reserve food...
Resource Type:: Dissertation
Full Text:: pine (Il3"" ponderosa Laws. ) was investigated to determine: I) the influence of humidity and

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

ScholarsArchive@OSU

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

Relative low temperature tolerance of lodgepole and ponderosa pine seedlings

Physiological relationships between dwarf mistletoe and ponderosa pine

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

Chemical applications for control of armillaria root rot of Ponderosa pine

Infection of stressed ponderosa pines by Armillariella mellea from indigenous and artificial inoculum sources

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

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

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

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