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Filtering by: Degree Field Crop and Soil Science Remove constraint Degree Field: Crop and Soil Science Degree Level Doctoral Remove constraint Degree Level: Doctoral

1 - 8 of 8

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Nitrogen and dry matter relationships for winter wheats produced in western Oregon

Creator:

Locke, Kerry A.

Resource Type:

Dissertation
Water relations in red and white clover seed crops

Creator:

Oliva, Ruben N.

Abstract:

Both red (Trifolium pratense L.) and white (Trifolium repens L.) clover seed yields can be highly variable and low in western Oregon. The objectives of this study were to: i) determine crop water requirements and supplemental irrigation timing, and ii) quantify the effects of soil and water status on inflorescence...

Resource Type:

Dissertation
Genetics of partial incompatibility and improvement of haploid production in Hordeum vulgare L. x H. bulbosum L. crosses

Creator:

Chen, Fu-chiang and Chen, Fuqiang

Abstract:

The production of barley (Hordeum vulgare L.) haploids by crossing with H. bulbosum is a widely used tool in breeding and genetics. Certain barley genotypes have low seed set in this interspecific cross, a phenomenon known as partial incompatibility. Haploid production efficiency and gamete sampling are important issues with the...

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
Fallow water retention and wheat growth as affected by tillage method and surface soil compaction

Creator:

Schillinger, William F.

Abstract:

No-tillage winter wheat (Triticum aestivum L.) grown in a wheat-fallow cropping system has consistently produced lower grain yields than conventionally tilled soils in the semiarid Pacific Northwest. A 2-year study was conducted in a long-term tillage trial at Moro, OR to determine factors responsible for differences in wheat growth and...

Resource Type:

Dissertation
The effects of enhanced atmospheric CO₂ and N fertilization on growth and development of rice (Oryza sativa L.)

Creator:

Weerakoon, W. M. Wijayasiri

Resource Type:

Dissertation
Bridging upland-irrigated rice (Oryza sativa L.) gene pools via anther culture

Creator:

Bruzzone, Carlos B.

Resource Type:

Dissertation
Investigation of hop downy mildew through association mapping and observations of the oospore

Creator:

Parker, Thomas B.

Abstract:

Hop downy mildew is a devastating disease affecting hop requiring expensive fungicide applications throughout the growing season. Plant resistance is highly desirable and theorized as being decidedly quantitative with dominance and epistasis involved in resistance. An association mapping approach using a mixed-model was used to identify AFLP markers associated with...

Resource Type:

Dissertation

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Academic Affiliation

Crop and Soil Science8

Advisor

Bolton, Floyd E.1
Hart, John M.1
Hayes, Patrick M.1
Henning, John A.1
Karow, Russell S.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1991 to 2008

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Committee Member

Hayes, Patrick2
Bedell, Thomas E.1
Breen, Pat1
Chastain, Tom1
Chen, T. H. H.1
more Committee Members »

Creator

Bruzzone, Carlos B.1
Chen, Fu Chiang1
Chen, Fuqiang1
Locke, Kerry A.1
Mou, Beiquan1
more Creators »

Date

Date range begin – Date range end

Current results range from 1991 to 2007

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Decade

2000-20091
1990-19997

Degree Field

Crop and Soil Science[remove]8

Degree Level

Doctoral[remove]8

Degree Name

Doctor of Philosophy (Ph.D.)8

File Format

application/pdf1

Language

English [eng]8

License

All rights reserved1

Non-Academic Affiliation

Oregon State University. Graduate School8

Peer Reviewed

No7

Resource Type

Dissertation8

Rights Statement

Copyright Not Evaluated7
In Copyright1

Subject

Atmospheric carbon dioxide1
Barley -- Genetics1
Crops -- Effect of atmospheric carbon dioxide on1
Crops and water -- Oregon1
Food -- Protein content1
more Subjects »

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