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Filtering by: Committee Member Allen, Thomas C. Remove constraint Committee Member: Allen, Thomas C.

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Pectolytic enzyme production by Fusarium oxysporum f. sp. lycopersici

Creator:

Baldwin, Charles Harry

Abstract:

This investigation was undertaken to determine 1) the effects of various carbon sources in defined media on pectolytic enzyme production, 2) the effect of the incubation period on pectolytic enzyme activity, and 3) the development of improved methods for the purification and characterization of the polygalacturonases (PG) produced by Fusarium...

Resource Type:

Dissertation
Occurrence, transmission, and properties of strains of cucumber mosaic virus that are seed-transmitted in Phaseolus vulgaris

Creator:

Davis, Robert Francis

Abstract:

A survey of major bean (Phaseolus vulgaris) breeding programs and seed producing areas in Idaho, Washington, and Oregon was conducted to determine the occurrence of cucumber mosaic virus (CMV), recently reported to be seedborne in beans. Some 259 plants, sampled from breeding lines of diverse germplasm, were found by enzyme-linked...

Resource Type:

Dissertation
A revision of the genus Deraeocoris Kirschbaum (Heteroptera:Miridae) from western America north of Mexico

Creator:

Razafimahatratra, Vincent de Paul

Abstract:

The genus Deraeocoris Kirschbaum of western America north of Mexico was revised. Approximately 10,000 specimens from the Nearctic Region were examined. Taxonomic characters used by previous authors were reevaluated. In addition to the male parameres, the male vesica and the female posterior wall of the bursa copulatrix and sclerotized rings...

Resource Type:

Dissertation
Assessment of resistance and inheritance to Barley Yellow Dwarf Virus disease (BYDV) in five wheat cultivars (Triticum aestivum L.)

Creator:

Tola, Jaime

Abstract:

Barley Yellow Dwarf Virus (BYDV) is a major disease of wheat. Unfortunately, unlike barley where the Yd2 gene provides adequate levels of resistance, the situation in wheat is more complex. This study was designed to provide information regarding: 1) evaluation of methods of measuring resistance among selected cultivars; 2) identification...

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

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Academic Affiliation

Crop Science2
Botany and Plant Pathology1
Botany1
Entomology1

Advisor

Kronstad, Warren E.2
Corden, Malcolm E.1
Hampton, Richard O.1
Lattin, John D.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1970 to 1988

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Committee Member

Allen, Thomas C.[remove]5
Anderson, Norman H.1
Chambers, Kenton L.1
Fisher, Glenn1
Frenkel, Robert E.1
more Committee Members »

Creator

Baldwin, Charles Harry1
Davis, Robert Francis1
Razafimahatratra, Vincent de Paul1
Re, Jose Vicente1
Tola, Jaime1

Date

Date range begin – Date range end

Current results range from 1969 to 1987

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Decade

1980-19894
1960-19691

Degree Field

Botany2
Crop Science2
Entomology1

Degree Level

Doctoral5

Degree Name

Doctor of Philosophy (Ph.D.)5

Language

English [eng]5

Non-Academic Affiliation

Oregon State University. Graduate School5

Peer Reviewed

No5

Resource Type

Dissertation5

Rights Statement

Copyright Not Evaluated5

Subject

Barley yellow dwarf viruses1
Beans -- Diseases and pests1
Cucumber mosaic virus1
Deraeocoris Kirschbaum1
Meridae1
more Subjects »

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