Index Catalog // ScholarsArchive@OSU

Agroforestry farming in American Samoa : a classification and assessment

Creator:: Tuitele-Lewis, Jeannette D.
Abstract:: Agroforestry is a traditional farming practice in American Samoa that has helped to sustain the livelihood of the native population for centuries. These once self-sufficient islands have become economically dependent on U.S monies and other external resources during the past century. Dependency has caused a shift in the carrying capacity...
Resource Type:: Masters Thesis
Full Text:: redacted for privacy. Steven R. Radosevich Agroforestry is a traditional farming practice in American

Competitive interactions between Douglas-fir and red alder seedlings : growth analysis, resource use, and physiology

Creator:: Shainsky, Lauri J.
Abstract:: Competitive interactions between Douglas-fir seedlings (Pseudotsuga menziesii), and seedlings of a nitrogen-fixing hardwood associate, red alder (Alnus rubra), were investigated in an addition series experiment. The primary objective of the research was to identify and quantify key processes underlying intra- and interspecific competitive interactions of Douglas-fir and red alder seedlings....
Resource Type:: Dissertation

Crop rotation effects on the seed bank and population dynamics of annual bluegrass (Poa annua)

Creator:: Sardar, Farid M.
Abstract:: Field studies were conducted to evaluate the effect of crop rotation on annual bluegrass plant population dynamics, seed rain, and seed bank in 1996 and 1997 at two sites. Growth-chamber studies were conducted to determine the influence of the mother plant environment on annual bluegrass germination. The change in population,...
Resource Type:: Masters Thesis
Full Text:: Bank and Population Dynamics of Annual Bluegrass (Poa annua). Abstract approved: Steven R

Effect of density, proportion, and spatial arrangement on the competition of winter wheat and Italian ryegrass (Lolium multiflorum Lam)

Creator:: Hashem, Abul, 1956-
Resource Type:: Dissertation
Full Text:: Wheat and Italian Ryegrass (Lolium multiflorum Lam). Abstract Redacted for Privacy approved: Steven R

Individual and population responses to abiotic stresses in Italian ryegrass (Lolium multiflorum Lam.)

Creator:: Martinez-Ghersa, Maria Alejandra
Abstract:: Plant form is a compromise between resource gathering, reproduction and the tolerance to physical demands of the abiotic and biotic environment. In an agricultural field in addition to the natural factors causing stress, humans also introduce physical and mechanical stresses, and chemical pesticides into the environment. Many of these factors...
Resource Type:: Dissertation
Full Text:: .) Abstract appr Steven R. Radosevic Plant form is a compromise between resource gathering, reproduction and

Life-history and physiological trade-offs to reproduction of invasive and noninvasive Rubus

Creator:: McDowell, Susan C.
Abstract:: The goal of this dissertation was to improve our understanding of the physiology and life-history of invasive plants and of the mechanisms underlying life-history trade-offs. I compared invasive and noninvasive species of Rubus (blackberry) that grow together in the Pacific Northwest. Three hypotheses were investigated: (1) Invasive Rubus have higher...
Resource Type:: Dissertation
Full Text:: and Physiological Trade-offs to Reproduction of Invasive and Noninvasive Rubus /2 Abstract Steven R

Models of a four-species annual weed community : growth, competition, and community dynamics

Creator:: Roush, Mary Lynn
Abstract:: Models of weed communities aid in the development of weed management strategies and elucidate the processes and mechanisms that regulate plant populations and communities. A conceptual weed community model was developed to organize key regulatory life-history processes. Specific investigations focused on the processes of plant growth and competition, and relationships...
Resource Type:: Dissertation
Full Text:: :_ Steven R. Radosevich Models of weed communities aid in the development of weed management strategies

Photocontrol of seed germination in arable land

Creator:: Scopel, Ana L.
Resource Type:: Dissertation
Full Text:: reviewed drafts of the manuscripts. Steven R. Radosevich advised me on several steps along the

Photomorphogenic processes in the agricultural environment

Creator:: Ballaré, Carlos L.
Resource Type:: Dissertation
Full Text:: Abstract approved: Steven R. Radosevich I review recent advances in photomorphogenic research and use

Spatial pattern and dynamics of hardwood patches in the Coast Range of Oregon, 1939-1993

Creator:: Hess, Rebecca Susan
Abstract:: Analysis of the long-term spatial pattern and dynamics of hardwood patches in the Coast Range of Oregon provides numerous ecological insights. Natural and anthropogenic disturbances have contributed to the development of a patchy mosaic of vegetation types in the area. Some hardwood patches in the Coast Range may be the...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Agroforestry farming in American Samoa : a classification and assessment

Competitive interactions between Douglas-fir and red alder seedlings : growth analysis, resource use, and physiology

Crop rotation effects on the seed bank and population dynamics of annual bluegrass (Poa annua)

Effect of density, proportion, and spatial arrangement on the competition of winter wheat and Italian ryegrass (Lolium multiflorum Lam)

Individual and population responses to abiotic stresses in Italian ryegrass (Lolium multiflorum Lam.)

Life-history and physiological trade-offs to reproduction of invasive and noninvasive Rubus

Models of a four-species annual weed community : growth, competition, and community dynamics

Photocontrol of seed germination in arable land

Photomorphogenic processes in the agricultural environment

Spatial pattern and dynamics of hardwood patches in the Coast Range of Oregon, 1939-1993

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