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Filtering by: Committee Member Fisher, Glenn Remove constraint Committee Member: Fisher, Glenn

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Differential transmission of strawberry mottle virus by Chaetosiphon thomas Hille Ris Lambers and Chaetosiphon fragaefolii (Cockerell)

Creator:

Eulensen, Gustav Egon

Abstract:

The transmission of strawberry mottle virus (SMV) to Fragaria vesca L. by Chaetosiphon thomasi and C. fragaefolii was studied to determine differences between the two species. Acquisition, inoculation, and retention phases of transmission were described. In all phases, C. fragaefolii was found to be the more efficient vector. Mean transmission...

Resource Type:

Masters Thesis
Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

Creator:

Cacka, Joseph Francis

Resource Type:

Masters Thesis
Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

Creator:

Talkington, Michael Lee

Abstract:

Studies were conducted in the Willamette Valley of western Oregon to evaluate the effects of plowing (7.5-15 cm deep) and disking (5-10 cm deep) in peppermint, Mentha piperita L., on the following factors: 1) emergence of adult "mint root borer", Fumibotys fumalis Guenée; 2) suppression of common groundsel, Senecio vulgaris...

Resource Type:

Masters Thesis
Sampling methods and injury thresholds for western spotted cucumber beetle in snap beans

Creator:

Weinzierl, Richard Alan

Resource Type:

Dissertation
Modifying selected factors to classify levels of resistance or tolerance in wheat to Septoria Tritici Blotch

Creator:

Re, Jose Vicente

Abstract:

Influence of abiotic and biotic factors were examined in selected winter wheats previously identified as representing a range of responses to septoria infection. In the greenhouse two and three inoculations identified resistance when disease severity was assessed either for the top four leaves or the flag leaf respectively. Kernel number...

Resource Type:

Dissertation
Inheritance of Septoria leaf blotch resistance and the possible influence of heading date and plant height on the disease expression in a winter wheat cross

Creator:

Camacho Casas, Miguel Alfonso

Abstract:

Parental lines, Fi's and segregating populations (F₂, F₃ and BC's) including reciprocals were evaluated under field conditions to determine if genetic resistance per se exists for Septoria Leaf Blotch in a selected winter wheat cross. The experiment was conducted over a three year period with both natural infection and artificial...

Resource Type:

Dissertation
Interactions of Amphorophora agathonica Hottes with raspberry viruses and resistant red and black raspberry

Creator:

Lightle, Danielle

Abstract:

In recent years, red raspberry production in Washington and British Columbia has been severely limited by a newly emerged virus complex that causes symptoms of crumbly fruit. The complex is comprised of three viruses: Raspberry bushy dwarf virus (RBDV), Raspberry leaf mottle virus (RLMV) and Raspberry latent virus (RpLV). Both...

Resource Type:

Dissertation
Applications of radiotelemetry to studies of California quail in western Oregon

Creator:

Kilbride, Kevin M.

Abstract:

A partially automated radio-tracking system with semi-continuous azimuth data collection and XYLOG5 and MAP computer programs for azimuth data analysis was used for studies of California quail (Callipepla californica) at the E.E. Wilson Wildlife Area, Oregon, in 1988 and 1989. Movements of 58 hens were monitored daily to determine nest...

Resource Type:

Masters Thesis
Isozymic and cytological studies on populations of the introduced bee species, Megachile (Eutricharaea) rotundata and M. (Eutricharaea) apicalis

Creator:

Chen, Xiaoshe

Abstract:

Thirteen New World populations of Megachile rotundata and M. apicalis and two Old World populations of M. rotundata were analyzed at 23 enzyme loci using cellulose acetate electrophoresis. Conventional and G- or C-banded karyotypes were also examined in these populations. The principal findings are (1) No differences were found in...

Resource Type:

Dissertation
Duration and rate of grain filling and subsequent grain protein content in selected winter wheat populations

Creator:

Mou, Beiquan

Abstract:

The lack of information regarding the inheritance of the duration and rate of grain filling, and the possible relationship between grain fill and grain protein content in wheat prompted this study. Early maturing Chinese cultivars, 'AI Feng 2' and 'CB 83-52', and late maturing cultivars adapted to Oregon, 'Stephens' and...

Resource Type:

Dissertation

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Academic Affiliation

Entomology7
Horticulture4
Crop and Soil Science3
Botany and Plant Pathology2
Crop Science2
more Academic Affiliations »

Advisor

Berry, Ralph E.3
Kronstad, Warren E.3
Rao, Sujaya2
Baggett, James R.1
Chen, Tony H. H.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1981 to 2013

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Committee Member

Fisher, Glenn[remove]24
Petersen, Roger3
Appleby, Arnold2
Fuchigami, Leslie H.2
Hayes, Patrick2
more Committee Members »

Creator

Akhtar, Ali1
Ambrosino, Mario D.1
Cacka, Joseph Francis1
Camacho Casas, Miguel Alfonso1
Chen, Xiaoshe1
more Creators »

Date

Date range begin – Date range end

Current results range from 1980 to 2013

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Decade

2010-20194
2000-20095
1990-19996
1980-19899

Degree Field

Entomology12
Crop Science3
Horticulture3
Botany and Plant Pathology2
Crop and Soil Science1
more Degree Fields »

Degree Level

Doctoral15
Master's9

Degree Name

Doctor of Philosophy (Ph.D.)15
Master of Science (M.S.)9

File Format

application/pdf2

Language

English [eng]24

License

All rights reserved8

Non-Academic Affiliation

Oregon State University. Graduate School24

Peer Reviewed

No23

Resource Type

Dissertation15
Masters Thesis9

Rights Statement

Copyright Not Evaluated15
In Copyright9

Subject

Abscisic acid1
Agricultural pollution -- Oregon -- Umatilla River -- Evaluation1
Amphorophora -- British Columbia1
Amphorophora -- Washington (State)1
Animal radio tracking -- Oregon1
more Subjects »

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