Index Catalog // ScholarsArchive@OSU

Growth and forage quality of tall fescue (Festuca arundinacea schreb.) and perennial ryegrass (Lolium perenne L.) as affected by mefluidide

Creator:: Manurung, Sabam Oloan
Abstract:: Field study with 5 tall fescue genotypes treated at the vegetative growth stage, with 0, 0.28, 0.56, and 0.84 kg/ha of mefluidide was initiated in July, 1980. The regrowth of these plants were again treated at the booting growth stage in April, 1981, with the same rates of mefluidide as...
Resource Type:: Masters Thesis
Full Text:: . Youngberg, Dr. Thomas C. Moore and Dr. William M. Proebsting for their interest and for serving as members

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

Creator:: Ghimire, Rama D.
Abstract:: The objective of this study was to examine the variation among ammonia-oxidizing and denitrifying communities in soils of a natural Fennoscandian boreal forest and of a forest with a long history of fertilization with different levels of nitrogen (N), and to examine whether there are any changes in the microbial...
Resource Type:: Masters Thesis
Full Text:: thesis reader, and an inspiration in many ways, and my Graduate Council Representative Dr. William M

Functions and regulation of cytokinin glucosyltransferases

Creator:: Pineda Rodó, Albert
Abstract:: Cytokinins can be conjugated to N- and O-glucosides. While N-glucosylation generally leads to irretrievable loss of activity, O-glucosides are thought to play an important role in cytokinin storage and homeostasis since they can be hydrolyzed to the corresponding aglycones. The first zeatin O-glycosyltransferase genes isolated were ZOG1 and ZOX1 from...
Resource Type:: Dissertation

Identifying candidate genes associated with cold adaptation in Douglas-fir using DNA microarrays

Creator:: Howe, Dana Kathryn
Abstract:: In forest trees from temperate and boreal regions, cold acclimation is an important adaptive trait that involves changes in gene expression and physiology. Genecological, quantitative genetic, and QTL studies have been used to study the genetics of cold acclimation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), but the genes responsible for...
Resource Type:: Masters Thesis
Full Text:: . William Proebsting, for their time and insight. I would also like to thank Dr. Hayes for the

Riparian litter inputs to streams in the central Oregon Coast Range

Creator:: Hart, Stephanie K.
Abstract:: Riparian zone vegetation can influence terrestrial and aquatic food webs through variations in the amounts, timing, and nutritional content of leaf and other litter inputs. Differences in vegetation composition and density, as well as riparian topography, may modulate the strength and quality of these inputs. Changes in inputs to small...
Resource Type:: Masters Thesis
Full Text:: . Deciduous site vertical litter inputs (504 g m-2 yr-1 (95% CI: 447-562)) were estimated to exceed those

Competitive effects of overtopping vegetation on Douglas-fir morphology in the Oregon Coast Range

Creator:: Chan, Samuel S.
Abstract:: The response of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) saplings to various levels of brush overtopping when growing on three north-facing sites in the Oregon Coast Range was investigated for two consecutive years. A fisheye (hemispherical) photographic technique combined with a digitizing computer system was used to determine the percentage of...
Resource Type:: Masters Thesis

Prescribed fire in Eastern Oregon ponderosa pine forests : relationships between soil fertility and ecology

Creator:: Grossmann, Emilie B.
Abstract:: I conducted two separate studies, both related to the impacts of spring and fall prescribed fire on ponderosa pine (Pinus ponderosa Dougl. ex Loud.) forest soils in Eastern Oregon. The studies were either conducted at or linked to four stands of ponderosa pine, in the Malheur National Forest. Each stand...
Resource Type:: Masters Thesis
Full Text:: Schowalter, Dr. William Proebsting and Dr. David Myrold. I am also grateful to many other individuals who

RFLP analyses of interspecific hybrids of Phaseolus

Creator:: Kuo, Mei
Abstract:: Gene transfer via interspecific hybridization within Phaseolus has been limited by abnormal hybrid development and the rapid loss of hybridity in subsequent generations. The most advanced embryo development occurs in P. vulgaris x P. coccineus where mature seeds form. However, the reciprocal cross still results in abnormal embryos unable to...
Resource Type:: Dissertation
Full Text:: . My sincere appreciation is extended to Drs. William Denison, Steve Knapp, William Proebsting, Steve

A revision of the Macrocheles glaber species group (Acari: Macrochelidae) using phylogenetic systematics

Creator:: Walter, David Evans, 1950-
Abstract:: The Macrocheles glaber species group contains many of the common mites which are associated with the dung of domestic animals. Species in the glaber group have been investigated for their use as biological control agents of synanthropic flies. Over 10,000 slide-mounted specimens of Macrocheles in the OSU Acarology Collection and...
Resource Type:: Dissertation
Full Text:: William Proebsting for maintaining interest in the arcane field of acarine systematics, providing

Biological control of spider mites by the predatory mite Neoseiulus fallacis (Acari: Phytoseiidae) in ornamental nursery systems

Creator:: Pratt, Paul D.
Abstract:: We identified and evaluated a phytoseiid predator as a biological control agent of multiple spider mites pests that occur in ornamental nurseries. When comparing species, Neoseiulus fallacis (Garman) had a wider prey range than Galendromus occidentalis (Nesbitt), a higher probability of overwintering than Neoseiulus califomicus McGregor and was equally or...
Resource Type:: Dissertation
Full Text:: committee members, Jack DeAngelis, Jim Green, Marcos Kogan and William Proebsting were always generous

ScholarsArchive@OSU

Growth and forage quality of tall fescue (Festuca arundinacea schreb.) and perennial ryegrass (Lolium perenne L.) as affected by mefluidide

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

Functions and regulation of cytokinin glucosyltransferases

Identifying candidate genes associated with cold adaptation in Douglas-fir using DNA microarrays

Riparian litter inputs to streams in the central Oregon Coast Range

Competitive effects of overtopping vegetation on Douglas-fir morphology in the Oregon Coast Range

Prescribed fire in Eastern Oregon ponderosa pine forests : relationships between soil fertility and ecology

RFLP analyses of interspecific hybrids of Phaseolus

A revision of the Macrocheles glaber species group (Acari: Macrochelidae) using phylogenetic systematics

Biological control of spider mites by the predatory mite Neoseiulus fallacis (Acari: Phytoseiidae) in ornamental nursery systems

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