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Filtering by: Committee Member Thomas, David R. Remove constraint Committee Member: Thomas, David R. Decade 1990-1999 Remove constraint Decade: 1990-1999 Language English [eng] Remove constraint Language: English [eng]

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Influence of leaf types on canopy architecture and grain yield in selected crosses of spring wheat Triticum aestivum L.

Creator:

Vanavichit, Apichart

Abstract:

The effects of erect leaf canopies on enhancing grain yield in wheat is not understood. The main objective of this study was to understand the effect of leaf angle on grain yield by comparing randomly derived-lines from crosses of erect and droopy leaf spring wheats. Nine traits associated with canopy...

Resource Type:

Dissertation
Estimates of genetic variability resulting from single, top, and double cross populations in durum wheat (Triticum turgidum L. var. durum)

Creator:

Abdennadher, Mourad

Abstract:

The success of a plant breeding program depends upon the availability of useable genetic diversity. Such diversity may be enhanced depending on the type of hybridization strategy employed. Segregating progenies resulting from F2 populations, a double cross, and a top cross were compared for the amount of useable genetic diversity...

Resource Type:

Masters Thesis
Inheritance of durable type disease resistance to leaf rust in wheat (Triticum aestivum L.em Thell)

Creator:

Das, Modan Kumar

Resource Type:

Dissertation
Geostatistical applications to salinity mapping and simulated reclamation

Creator:

Al-Taher, Mohamad A.

Abstract:

Geostatistical methods were used to find efficient and accurate means for salinity assessment using regionalized random variables and limited sampling. The random variables selected, sodium absorption ratio (SAR), electrical conductivity (EC), and clay content were measured on samples taken over an area of fifteen square miles. Ordinary kriging and co-kriging...

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
Processing of laser interferometric signals for small displacement measurements

Creator:

Peng, Gwo-sheng

Abstract:

Algorithms for analyzing laser interferometry signals were developed and adopted to the computer based processing of small displacement measurements. These methods, matrix operation approach and fixed parameters approach, are based on signal phase calculation and are able to replace complex fringe counting electronic circuits. The matrix operation provides an approach...

Resource Type:

Dissertation
Evaluation of responses of sows and their litters to feeding patterns

Creator:

Kwansa, Wilhelmina

Resource Type:

Dissertation
Assessment of genetic resistance to strawbreaker foot-rot (Pseudocercosporella Herpotrichoides) in selected winter wheat (Triticum aestivum L.) cultivars

Creator:

Encinas-Mungarro, Andres

Abstract:

Strawbreaker foot-rot is a major limiting factor to cost efficient winter wheat production in the Pacific Northwest. Development of resistant cultivars has been hindered by the lack of adequate levels of genetic resistance and screening techniques which can consistently detect desired genotypes. Studies were conducted to determine if the reported...

Resource Type:

Dissertation
Salivation and engorgement parameters of sucking insect vectors : implications in pathogen transmission

Creator:

Shieh, Jong-neng

Abstract:

The probing behavior and feeding activity of green peach aphid, Myzus persicae Sulzer, on Bacillus thuringiensis ssp. tenebrionis- transgenic potatoes, insecticide treated potatoes, and host plants with different preference were electronically monitored. I found that first, transgenic potatoes had no effect on green peach aphid probing suggesting that transmission of...

Resource Type:

Dissertation
Using percentile regression for estimating the maximum species richness line

Creator:

Qadir, Mohammad F.

Resource Type:

Dissertation

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Academic Affiliation

Crop and Soil Science4
Crop Science3
Food Science and Technology3
Animal Sciences2
Horticulture2
more Academic Affiliations »

Advisor

Kronstad, Warren E.3
Crabtree, Garvin D.2
Rajaram, Sanjaya2
Bell, Chris A.1
England, David C.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1990 to 1999

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Committee Member

Thomas, David R.[remove]19
Hayes, Patrick M.3
Mundt, Christopher C.2
Petersen, Roger G.2
Appleby, Arnold P.1
more Committee Members »

Creator

Abdennadher, Mourad1
Al Taher, Mohamad A.1
Ben Jelloun, Hassane1
Das, Modan Kumar1
Encinas Mungarro, Andres1
more Creators »

Date

Date range begin – Date range end

Current results range from 1990 to 1999

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Decade

1990-1999[remove]19

Degree Field

Crop Science4
Food Science and Technology3
Animal Science2
Horticulture2
Soil Science2
more Degree Fields »

Degree Level

Doctoral15
Master's4

Degree Name

Doctor of Philosophy (Ph.D.)15
Master of Science (M.S.)4

Language

English [eng][remove]19

License

All rights reserved1

Non-Academic Affiliation

Oregon State University. Graduate School19

Peer Reviewed

No18

Resource Type

Dissertation15
Masters Thesis4

Rights Statement

Copyright Not Evaluated18
In Copyright1

Subject

Aggregates (Building materials) -- Testing1
Aphididae -- Host plants1
Aphididae as carriers of disease1
Asphalt concrete -- Testing1
Cheddar cheese -- Moisture1
more Subjects »

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