Index Catalog // ScholarsArchive@OSU

The effects of density and proportion on spring wheat and Lolium multiflorum Lam

Creator:: Concannon, Julie Ann
Abstract:: This thesis consists of four chapters. Literature is reviewed in Chapter 1. Chapter 2 describes an addition series experiment to determine the influence of species density and proportion on vegetative and reproductive yield of spring wheat and Lolium multiflorum. Chapter 3 consists of a growth analysis experiment to determine whether...
Resource Type:: Masters Thesis
Full Text:: WHEAT AND LOLIUM MULTIFLORUM LAM. Abstract approved: Redacted for Privacy Steven R. Radosevich This

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

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

The population dynamics and growth of salmonberry (Rubus spectabilis) and thimbleberry (Rubus parviflorus)

Creator:: Maxwell, Bruce D.
Abstract:: Salmonberry (Rubus spectabilis) and thimbleberry (Rubus parviflorus) are clonal shrub species common to reforestation sites in the Oregon Coast Range. These species have economic importance, because they reduce conifer seedling growth and survival. A population modeling approach was used to facilitate study of the biology of these species and to...
Resource Type:: Dissertation
Full Text:: approved: Redacted for Privacy /' Steven R. Radosevich Salmonberry (Rubus spectabilis) and thimbleberry

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

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

Photocontrol of seed germination in arable land

Creator:: Scopel, Ana L.
Resource Type:: Dissertation
Full Text:: on July 23, 1993. Title: Photocontrol of geed Germination in Arable Land Abstract approved: Steven

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

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

Juniper utilization : issues of chemistry and management

Creator:: Swartley, D. Benjamin
Abstract:: Western juniper (Juniperus occidentalis) poses both a challenge and an opportunity for natural resource management in the rangelands of the northern Great Basin. The continued expansion of western juniper on the rangelands of the interior Northwest will likely continue as there are currently no practical options for returning this area...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The effects of density and proportion on spring wheat and Lolium multiflorum Lam

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

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

The population dynamics and growth of salmonberry (Rubus spectabilis) and thimbleberry (Rubus parviflorus)

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

Photomorphogenic processes in the agricultural environment

Photocontrol of seed germination in arable land

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

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

Juniper utilization : issues of chemistry and management

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