Index Catalog // ScholarsArchive@OSU

Ecophenology and Control of European Frogbit in a Hybrid Cattail Marsh of the St. Marys River, Michigan

Creator:: Wellons, Kathryn C.
Abstract:: Great Lakes coastal wetland communities are threatened by the impacts of invasive plants on ecosystem function and biodiversity. What allows invasive plants to become dominant in invaded communities can be hard to define and context-dependent. Traits associated with invasion success in wetland systems – rapid vegetative growth, competitive superiority in...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Dennis Albert Great Lakes coastal wetland communities are threatened by the impacts

Micropropagation of Pyrus rootstocks

Creator:: Yeo, Dennis
Abstract:: The availability of new pear rootstocks could be increased by development of an efficient micropropagation system. Many P. calleryana, P. betulifolia and P. communis rootstocks are resistant to many pear diseases and are graft compatible with leading cultivars. Explains of three potentially useful rootstock selections P. calleryana Decne 'OPR 157',...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Dennis Yeo for the degree of

Effects of inoculation with rhizobium and nitrogen fertilizer on snap beans, soybeans and lima beans

Creator:: Ma, Mei-hwa Wang
Abstract:: The responses of 'Oregon 1604' snap beans (Phaseolus vulgaris L.), 'Early Thorogreen' lima beans (Phaseolus lunatus L.), and 'Takii's Extra Early' soybeans (Glycine max L.) to two methods of inoculation with rhizobium (seedcoating and furrow treatments) and rates of nitrogen fertilizer were studied in field experiments. Nitrogen rates ranged from...
Resource Type:: Masters Thesis
Full Text:: . Thanks are extended to the members of my graduate committee. Dr. James Baggett, Dr. Dennis

Water Efficiency for Urban Landscapes in Semi-Arid Environments

Creator:: Martinson, Richard W.
Abstract:: Urban landscape water use is increasingly a focus of water conservation efforts. This is especially true in the arid and semi-arid regions of the western United States where increased demand, environmental concerns, and extended periods of drought have created chronic water shortages. However, until recently, little attention has been paid...
Resource Type:: Dissertation
Full Text:: . Dennis Albert provided editing and enthusiastic feedback on this chapter. Chapter 3. John

Novel methods for crop load management of pear cultivars in the Pacific Northwest

Creator:: Arrington, Matthew A.
Abstract:: Novel approaches to crop load management of pear orchards in the Pacific Northwest (PNW) are necessary, but will need to vary according to the unique vegetative and reproductive growth habits of the cultivar. 'D'Anjou' is vigorous and non-precocious; thus, strategies to limit vigor and induce early fruiting are required. In...
Resource Type:: Masters Thesis
Full Text:: fruit weight was often reduced. Reduced fruit weight was not associated with mid-season Todd C

Somaclonal variation, regeneration and transformation of quince (Cydonia oblonga Mill.) and pear (Pyrus communis L.)

Creator:: Bunnag, Sumonthip
Abstract:: Quince (Cydonia oblonga Mill.) is widely used as a dwarfing rootstock for pear {Pyrus communis L.). The disadvantage of this rootstock is its inefficient uptake of Fe, resulting in leaf chlorosis. Application of tissue culture and gene transfer techniques may lead to production of quince clones with improved Fe efficiency....
Resource Type:: Dissertation
Full Text:: approved: ._ M Dr. Machteld C. Mok Quince ( Cydonia oblonga Mill.) is widely used as a dwarfing

Inducing and Evaluating Phenotypic and Cytometric Variation in Landscape Plants : Observations from Acer, Ornithogalum, and Penstemon

Creator:: Lattier, Kim Shearer
Abstract:: Hereditary variation is a vital component in the development of new and improved cultivars of landscape plants. Sources of hereditary variation include naturally occurring variation, recombination due to controlled crosses, artificial mutagenesis, and genetic modification via biotechnology. Here I explore all methods with the exception of genetic modification via biotechnology....
Resource Type:: Masters Thesis
Full Text:: Landscape Plants: Observations from Acer, Ornithogalum, and Penstemon Abstract Approved: Ryan C

Habitat management for beneficial insects on Willamette Valley vegetable and berry farms

Creator:: Russell, Michael C.
Abstract:: Conservation biological control involves manipulating farm landscapes or management systems to enhance populations of beneficial predators of agricultural pests. Farmscaping is one aspect of conservation biological control where predators of important pests are identified, the availability on the farm landscape of resources and habitat components needed by the beneficials to...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Michael C. Russell for the degree of Doctor of Philosophy in

The translocation of ethephon and its physiological effects on the filbert (Corylus avellena L.) during husk senescence

Creator:: Kwong, Francis Y.
Abstract:: Nut drop in the filbert is a consequence of the senescence of the husk. It is possible to accelerate this process by the application of ethephon (2-chloroethyl)phosphonic acid after the nut has abscised from the base of the husk. This study is an investigation on the physiological effects of the...
Resource Type:: Masters Thesis
Full Text:: methods. Ra- 14 dioautographs of filbert stems following foliar applications of C

Disease resistance and spring phenological characteristics of Ribes L. germplasm

Creator:: Dalton, Daniel T.
Abstract:: North American cultivation of Ribes L. may expand as small fruit growers seek species to diversify horticultural crops. The Ribes industry was suppressed for decades out of fear that cultivated black currants and gooseberries would intensify the fungal disease white pine blister rust (WPBR) on five-needle pine (Pinus L. section...
Resource Type:: Masters Thesis
Full Text:: Fix, Jack Peters, Dennis Vandeveer, Joe Snead, Bruce Bartlett, Yvonne Pedersen, Jeanine DeNoma, Doug

ScholarsArchive@OSU

Ecophenology and Control of European Frogbit in a Hybrid Cattail Marsh of the St. Marys River, Michigan

Micropropagation of Pyrus rootstocks

Effects of inoculation with rhizobium and nitrogen fertilizer on snap beans, soybeans and lima beans

Water Efficiency for Urban Landscapes in Semi-Arid Environments

Novel methods for crop load management of pear cultivars in the Pacific Northwest

Somaclonal variation, regeneration and transformation of quince (Cydonia oblonga Mill.) and pear (Pyrus communis L.)

Inducing and Evaluating Phenotypic and Cytometric Variation in Landscape Plants : Observations from Acer, Ornithogalum, and Penstemon

Habitat management for beneficial insects on Willamette Valley vegetable and berry farms

The translocation of ethephon and its physiological effects on the filbert (Corylus avellena L.) during husk senescence

Disease resistance and spring phenological characteristics of Ribes L. germplasm

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search