Index Catalog // ScholarsArchive@OSU

Pathogenic variability and adaptation of Septoria tritici to different wheat cultivars

Creator:: Ahmed, Hafiz Uddin
Abstract:: Experiments were done to determine pathogenic variability and pathogenic adaptation of Septoria tritici to different wheat cultivars. Fifteen S. tritici isolates from California, Oregon, and Texas were evaluated on seedlings of two sets of geographically diverse wheat cultivars under greenhouse conditions. Significant isolate effects, cultivar effects, and isolate X cultivar...
Resource Type:: Dissertation
Full Text:: (anamorph Septoria tritici) isolates collected from a single wheat field. Phytopathology 80, 1368-1373

Syntheses and evaluation of putative enzyme inhibitor of isoprenoid biosynthesis

Creator:: Phaosiri, Chanokporn
Abstract:: The discovery of the methylerythritol phosphate pathway (the MEP pathway) as an alternate pathway for isoprenoid biosynthesis in some organisms including most bacteria, malarial parasites and plants, but not in animals, has stimulated extensive studies in this area. Research has revealed the potential of finding novel antibacterials, antimalarial drugs, and...
Resource Type:: Dissertation
Full Text:: - diphosphate decarboxylase; vii, IPP isomerase. 7 A NADPH-dependent HMG-CoA reductase (EC 1.1.1.34

Nitrogen fertigation practices to optimize growth and yield of northern highbush blueberry (Vaccinium corymbosum L.)

Creator:: Vargas, Oscar L.
Abstract:: Northern highbush blueberry is a long-lived perennial crop that is well adapted to low soil pH conditions. The plants are often shallow rooted and absorb primarily the ammonium (NH₄) form of nitrogen (N) rather than nitrate-N (NO₃-N). Traditionally, commercial blueberry fields have been irrigated with overhead sprinklers and fertilized using...
Resource Type:: Dissertation
Full Text:: electrical conductivity (EC) at a depth of 0–20 cm in a field of ‘Bluecrop’ blueberry during the first 5

Application of the least squares criterion to the determination of molecular compliance constants

Creator:: Ottinger, Robert Stanley
Abstract:: The development of a least squares model for the determination of compliance constants from various combinations of vibration frequency, mean square amplitudes of vibration and centrifugal distortion data is discussed. The resultant model is applied to frequency and mean square amplitude data for NO₂ and N₂O₄ and to frequency and...
Resource Type:: Dissertation
Full Text:: ) results in N ; (II,16) 4 + Qpi L( t iJ (II,,18) -1 [ma ( m)motcomo J, +rMot( Ec)mo

The physiological effect of posture on cycling

Creator:: al-Haboubi, Muhammad
Abstract:: The objective of this research was to investigate the physiological effects of body posture on cycling. The familiar positions of bicycle riding have been the touring posture (hands stretched on top handlebar) and the racing posture (hands bent at the elbow, with the back horizontal). However, a relatively new stance...
Resource Type:: Dissertation

Stereospecific Synthesis of Stereotriad Motifs and Alkenes Using Enantioenriched sp³-Hybridized Carbenoids

Creator:: Xun, Sun
Abstract:: Enantioenriched sp³-hybridized carbenoid reagents CR1R2MX (X = nucleofuge, M = electrofuge) of different types were investigated for the synthesis of polysubstituted alkyl chains by iterative stereospecific reagent-controlled homologation (StReCH) and for the stereospecific connective synthesis of alkenes by eliminative cross-coupling. In the first part, putative enantioenriched α-chloroalkyllithiums (CHRLiCl) were employed...
Resource Type:: Dissertation

Survival of fecal coliform bacteria in sludge-amended soils

Creator:: Hartel, Peter G.
Abstract:: A study was conducted to determine the effects or temperature, solar radiation, rainfall, and saturated flow on fecal coliform numbers in sewage sludge-amended soils. To determine this, four 4.6 X 13.7 m field plots were each amended in summer and in winter with 800 liters of anaerobically-digested sewage sludge, and...
Resource Type:: Dissertation
Full Text:: broth incubation times on m-FC most-probable-numbers 74 -10 Number of m-FC+/EC microwells per microwell

The identification of core competencies needed for high school graduation in Oregon

Creator:: Fancher, Burr Edwin
Abstract:: PURPOSE: The purpose of the study was to identify a set of core competencies needed to meet the minimal requirements for high school graduation and to test their level of acceptance by administrators, counselors, teachers and parents in 50 Oregon secondary school districts. PROCEDURES: Utilizing the 1136 existing graduation competencies...
Resource Type:: Dissertation

Realizable Path Planning and Execution for Robotic Systems

Creator:: Jones, Dylan A.
Abstract:: Performing autonomous robotic tasks in the field, such as ocean monitoring and aerial surveillance, requires planning and executing paths in dynamic environments. In these uncertain and changing environments, it is not uncommon to see a large difference between the path planned by the robotic vehicle and the path that the...
Resource Type:: Dissertation

Biological studies on Saldula palustris (Douglas) with emphasis on factors influencing wing pigmentation (Heteroptera:Saldidae)

Creator:: Stock, Mary Wilford
Abstract:: The life history and wing pattern variation of the intertidal shore bug, Saldula palustris (Douglas), were studied in field and experimental populations from June 1970 until February 1972. The study site was an estuarine salt marsh on Yaquina Bay near Toledo, Oregon. The insects live below mean high water level...
Resource Type:: Dissertation

ScholarsArchive@OSU

Pathogenic variability and adaptation of Septoria tritici to different wheat cultivars

Syntheses and evaluation of putative enzyme inhibitor of isoprenoid biosynthesis

Nitrogen fertigation practices to optimize growth and yield of northern highbush blueberry (Vaccinium corymbosum L.)

Application of the least squares criterion to the determination of molecular compliance constants

The physiological effect of posture on cycling

Stereospecific Synthesis of Stereotriad Motifs and Alkenes Using Enantioenriched sp³-Hybridized Carbenoids

Survival of fecal coliform bacteria in sludge-amended soils

The identification of core competencies needed for high school graduation in Oregon

Realizable Path Planning and Execution for Robotic Systems

Biological studies on Saldula palustris (Douglas) with emphasis on factors influencing wing pigmentation (Heteroptera:Saldidae)

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