Index Catalog // ScholarsArchive@OSU

Effect of defoliation treatments on forage quality, quantity, and species composition of a Lolium perenne (L.) - Trifolium subterraneum (L.) pasture

Creator:: Motazedian, Iraj
Abstract:: As part of investigations to adapt a suitable grazing system in western Oregon, this research was designed to monitor the effects of defoliation treatments on dry matter production, forage quality, regrowth after defoliation, and species composition of a Lolium perenne Trifolium subterraneum pasture for three consecutive growing seasons from 1980...
Resource Type:: Dissertation
Full Text:: PRODUCTION OF A LOLIUM PERENNE (L . ) TRIFOLIUM S UBTE RRANE UM (L . ) PASTURE 1 Iraj Motazedian and Steven

The effect of winter grazing on production and dynamics of a Lolium perenne (L.)-Trifolium repens (L.) pasture

Creator:: Jaindl, Raymond G.
Abstract:: Perennial ryegrass (Lolium perenne) - white clover (Trifolium repens) hill-land pastures were grazed at different times in the winter to study the effect of time of winter grazing on plant response and forage production. The same pastures were grazed by sheep once in early December, January, February, March, or April...
Resource Type:: Dissertation
Full Text:: (L.) Pasture. Abstract approved: Redacted for Privacy Steven H. Sharrow Perennial ryegrass

Metabolism of L-α-arginine in the biosynthesis of blasticidin S

Creator:: Woo, Nam-tae
Abstract:: Two labelled arginines, DL-[2,3,3,-²H₃]arginine, 8, and DL-[ ¹³C, 2-¹⁵N]arginine, 9, were synthesized. These were fed to cultures of Streptomyces griseochromogenes in order to probe the mechanism of the apparent arginine-2,3- aminomutase reaction occurring in biosynthesis of blasticidin S, 1. In previous studies of the enzymes lysine-2,3- aminomutase and tyrosine-2,3-aminomutase different...
Resource Type:: Masters Thesis
Full Text:: Metabolism of L-α-arginine in the biosynthesis of

Hormonal regulation of fruit set of sweet cherry (Prunus avium L.)

Creator:: Stevens, Gordon Arthur
Resource Type:: Dissertation
Full Text:: : Hormonal Regulation of Fruit Set of Sweet Cherry (Prunus avium L.) Abstract approved: „ ■ /^^^^^w

Evaluation of triticale grain in high producing dairy cow rations

Creator:: Biedenbach, Robert L.
Abstract:: The objective of this study was to evaluate triticale grain fed as a concentrate in the diet of high producing dairy cows. A lactation study, in vitro dry matter digestibilities and a preliminary physiological effects trial were conducted to evaluate triticale and used to make feeding recommendations. In the lactation...
Resource Type:: Masters Thesis
Full Text:: rations AN ABSTRACT OF THE THESIS OF Robert L. Biedenbach, Jr. for the degree of Master of Science in

Manipulation of assimilate transport patterns as a method of studying glyphosate translocation in tall morningglory [Ipomoea purpurea (L.) Roth]

Creator:: Dewey, Steven A.
Resource Type:: Dissertation
Full Text:: (L.) ROTH] by Steven A. Dewey A THESIS submitted to Oregon State University in partial

A systematic study of Lathyrus vestitus Nutt. ex T. & G. (Fabaceae) and allied species of the Pacific Coast

Creator:: Broich, Steven L.
Abstract:: Eight species of Lathvrus (Fabaceae, Faboideae) endemic to the Pacific Coast of North America were the subject of a systematic investigation. Taxa studied included Lathvrus vestitus, Nutt. ex T. & G., L. laetif lorus Greene, L.. iepsonii Greene, £,. splendens Kellogg, L. polvphvllus, Nutt. ex T. & G., L. holochlorus...
Resource Type:: Dissertation
Full Text:: vestitus Nutt. ex T. & G. (Fabaceae) and allied species of the Pacific Coast by Steven L. Broich A

Biological assessment of soils for potential development of take-all root rot

Creator:: McGeehan, Steven L.
Abstract:: Take-all root rot (Gaeumannomvces araminis var.tritici) is a major disease of wheat (Triticum aestivum) in western Oregon. Control of take-all is dependent on management practices such as crop rotation and soil fertility-plant nutrition relationships. The objective of this study was to develop a bioassay that could measure the influences of...
Resource Type:: Masters Thesis
Full Text:: of Take-all Root Rot AN ABSTRACT OF THE THESIS OF Steven L. McGeehan for the degree of Master of

Understory response to tree harvesting in pinyon-juniper woodlands

Creator:: Everett, Richard L.
Abstract:: Understory species associations and their association with tree species were examined on three intensively studied stands. We studied the chronosequence of understory species associated with different aged singleleaf pinyon (Pinus monophylla Torr. and Frem.) trees. Mid- to late pinyon-juniper understory succession was found to be more spatial than floristic in...
Resource Type:: Dissertation
Full Text:: Woodlands AN ABSTRACT OF THE THESIS OF Richard L. Everett for the degree of Doctor of Philosophy in

Adaptive sampling of spatial point processes

Creator:: Thompson, Steven Kirk
Abstract:: Adaptive sampling designs are those in which observations made during a survey may be taken into account when selecting the sites for further observations. Increases in survey precision may be achieved through adaptive procedures. The most efficient designs incorporate flexible sample size along with sequential selection of sites. In surveys...
Resource Type:: Dissertation
Full Text:: OF THE THESIS OF Steven Kirk Thompson for the degree of Doctor of Philosophy in the Department of

ScholarsArchive@OSU

Effect of defoliation treatments on forage quality, quantity, and species composition of a Lolium perenne (L.) - Trifolium subterraneum (L.) pasture

The effect of winter grazing on production and dynamics of a Lolium perenne (L.)-Trifolium repens (L.) pasture

Metabolism of L-α-arginine in the biosynthesis of blasticidin S

Hormonal regulation of fruit set of sweet cherry (Prunus avium L.)

Evaluation of triticale grain in high producing dairy cow rations

Manipulation of assimilate transport patterns as a method of studying glyphosate translocation in tall morningglory [Ipomoea purpurea (L.) Roth]

A systematic study of Lathyrus vestitus Nutt. ex T. & G. (Fabaceae) and allied species of the Pacific Coast

Biological assessment of soils for potential development of take-all root rot

Understory response to tree harvesting in pinyon-juniper woodlands

Adaptive sampling of spatial point processes

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