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Effect of soil water pressures on population dynamics of Fusarium equiseti, Glocladium virens, Talaromyces flavus and Trichoderma viride, biocontrol agents of Verticillium dahliae in potatoes

Creator:: Hussain, Shaukat
Resource Type:: Masters Thesis

Spring irrigation management of tall fescue (Festuca arundinacea Schreb.) seed crops

Creator:: Orthel, Krista D.
Abstract:: Later maturing cultivars and increased ability to apply irrigation have led to inquiries by producers about proper irrigation management in tall fescue (Festuca arundinacea Schreb.) seed crops. The literature reveals little information about irrigation of perennial grass seed crops in general, and none about tall fescue in particular. Willamette Valley...
Resource Type:: Masters Thesis

Symbiotic characteristics of Rhizobium leguminosarum bv. trifolii recovered from nodules of field-grown Trifolium subterraneum L.

Creator:: Wanjagi, Francis Ndung'u
Abstract:: In a series of greenhouse experiments, isolates representing serotypically distinct subpopulations of Rhizobium leguminosarum bv. trifolii recovered from root nodules of field-grown subclover Trifolium subterraneum cv. "Nangeela"), were evaluated for their symbiotic effectiveness potential, their effect on regrowth potential of subclover, and for their competitive abilities to form nodules. Isolates...
Resource Type:: Masters Thesis

Paclobutrazol and nutrient treatment effects on ovation perennial ryegrass

Creator:: Turner, J. Kevin
Abstract:: Rapid tiller and root production can improve seedling survival and benefit stand establishment of perennial ryegrass (Lolium perenne L.) in commercial seed fields. Environmental conditions after establishment and inherent morphological factors combine to reduce the commercially harvested yield below the theoretical potential yield. These studies were conducted to determine if...
Resource Type:: Dissertation

Grass straw residues as a feed source for wintering beef cattle

Creator:: Stamm, Michele M.
Resource Type:: Masters Thesis

The influence of phosphatase-producing bacteria on phosphatase activity and available phosphorus in soil

Creator:: Nelson, Sheila J.
Resource Type:: Masters Thesis

Nitrogen dynamics in field grown comice pears

Creator:: Sanchez, Enrique E.
Abstract:: The dynamics of N was studied in field grown Comice/Provence quince BA29 pears in Medford, Oregon. Total tree biomass, N content, and ¹⁵N evaluations suggest that young pears require little N (48 kg N ha⁻¹ yr⁻¹). About 45% of total tree N present in dormant trees was remobilized into new...
Resource Type:: Dissertation

Evaluation of responses of sows and their litters to feeding patterns

Creator:: Kwansa, Wilhelmina
Resource Type:: Dissertation

Sampling and management of garden symphylans (Scutigerella immaculata Newport) in western Oregon

Creator:: Umble, Jon R.
Abstract:: Garden symphylans (Scutigerella immaculata Newport) are increasingly important pests of below-ground parts of over 100 crops in Oregon. The focus of our work was to improve S. immaculata management through 1) development of a bait sampling method, 2) examination of the susceptibility of selected crops to S. immaculata feeding in...
Resource Type:: Dissertation

Possible association of grain protein content, harvest index and biological yield in winter wheat populations

Creator:: Costa, Jose Maria
Abstract:: A negative relation between grain protein content and grain yield is frequently observed in wheat (Triticum aestivum L. em Thell) i.e. as grain yield increases, grain protein decreases. It has been suggested that the inverse relation between grain yield and protein is in part the result of developing high yielding...
Resource Type:: Dissertation
Full Text:: special acknowledgement for Ann Corey for her help and friendship. I am very grateful to my wife

ScholarsArchive@OSU

Effect of soil water pressures on population dynamics of Fusarium equiseti, Glocladium virens, Talaromyces flavus and Trichoderma viride, biocontrol agents of Verticillium dahliae in potatoes

Spring irrigation management of tall fescue (Festuca arundinacea Schreb.) seed crops

Symbiotic characteristics of Rhizobium leguminosarum bv. trifolii recovered from nodules of field-grown Trifolium subterraneum L.

Paclobutrazol and nutrient treatment effects on ovation perennial ryegrass

Grass straw residues as a feed source for wintering beef cattle

The influence of phosphatase-producing bacteria on phosphatase activity and available phosphorus in soil

Nitrogen dynamics in field grown comice pears

Evaluation of responses of sows and their litters to feeding patterns

Sampling and management of garden symphylans (Scutigerella immaculata Newport) in western Oregon

Possible association of grain protein content, harvest index and biological yield in winter wheat populations

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