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Filtering by: Subject Pistachio -- Diseases and pests Remove constraint Subject: Pistachio -- Diseases and pests Academic Affiliation Botany Remove constraint Academic Affiliation: Botany Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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A study of the viruses infecting European and American potato varieties

Creator:

Dykstra, Theodore P. (Theodore Peter), 1896-1979

Resource Type:

Dissertation

Full Text:

emphasizes the necessity of distinguishinr between a virus and the type of disease it causes. That
Physiologic specialization and etiology of red stele disease, Phytophthora fragariae Hickman, of strawberries, and attempts at control

Creator:

Wooley, Paul Henry

Resource Type:

Dissertation

Full Text:

Disease, Phytophthora Fragariae Hickman, of Strawberries, and Attempts at Control PHXSIOLOOIC
The identity and the relationship of the viruses causing western X little Cherry and Kootenay little Cherry

Creator:

Wilks, Jack Morton

Resource Type:

Dissertation

Full Text:

group". In addition, there is a virus disease in cherry in the Eastern United States and Canada that
Occurrence, behavior and control of Verticillium albo-atrum Reinke and Berth in small fruits

Creator:

Pratt, Michael John

Resource Type:

Dissertation

Full Text:

history 44 Nutrition 46 Environment 46 DIAGNOSIS OF THE DISEASE IN THW LABORTORY AND FIELD SPRED OF
Role of associated fungi in the prevention of gray mold (Botrytis cinerea Pers.) of strawberries

Creator:

Bhatt, Dibya Deo

Resource Type:

Dissertation

Full Text:

have no influence on each other ( "co- existence "). The inci- dence and severity of a disease may
Etiology and epiphytology of strawberry fruit rot caused by Botrytis cinerea pers.

Creator:

Powelson, R. L.

Resource Type:

Dissertation

Full Text:

. flhizopus rot, commonly called leak, is primarily a market disease (67, pp. 1-2) and 61, p. 21) but it
Races of bean rust, Uromyces phaseoli (Pers.) wint. var. phaseoli, in the Willamette Valley

Creator:

Hikida, Hideaki Robert

Resource Type:

Dissertation

Full Text:

the disease in the United States. A few years later Haistead (14, p. 26) and Whetze]. (32, p. 199
Factors affecting the identification of races of Uromyces phaseoli (Pers.) Wint. var. phaseoli

Creator:

Davison, Arlen Durant

Resource Type:

Dissertation

Full Text:

that the optimum day -night temperature for disease development was 27° and 21 °C. This is in
Isolation, purification and other studies of viruses mechanically transmitted from pear

Creator:

Nemec, Stanley, Jr.

Abstract:

Knowledge of the viruses which are mechanically transmitted from pear to herbaceous plants and the diseases they cause in pear is not complete. This thesis discusses the means used to mechanically transmit pear viruses, the properties of those viruses and their relationships with latent viruses of apple. Herbaceous plant virus...

Resource Type:

Dissertation

Full Text:

distinguishing different vi- ruses, filtering viruses from mixed cultures and locating disease free clones
The influence of environment and pathogen variability on the infection of wheat by Puccinia striiformis West

Creator:

Beaver, Richard Gary, 1939-

Abstract:

Race identification of stripe rust (Puccinia striiformis West. ) is influenced by environment, pathogen variability and host age. Isolates of stripe rust were collected in the Pacific Northwest and characterized on two sets of differential varieties; the "Oregon" and the United States. Six of the seven isolates tested on the...

Resource Type:

Dissertation

Full Text:

. 49 10 Disease gradients in late summer inoculated wheat plots, 1969. 50 11 Disease gradients and

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Academic Affiliation

Botany[remove]43
Botany1

Advisor

Milbrath, J. A.8
Vaughan, Edward K.8
Mcwhorter, Frank P.3
Roth, Lewis F.3
Vaughan, E. K.3
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1938 to 1973

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Creator

Barnes, George Lewis1
Beaver, Richard Gary, 1939 1
Bhatt, Dibya Deo1
Brown, William M., 1935 1
Chairez, Ruben1
more Creators »

Date

Date range begin – Date range end

Current results range from 1938 to 1972

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Decade

1970-19797
1960-196914
1950-195918
1940-19491
1930-19393

Degree Field

Botany33
Plant Pathology10

Degree Level

Doctoral43

Degree Name

Doctor of Philosophy (Ph.D.)[remove]43

Language

English [eng]43

Non-Academic Affiliation

Oregon State University. Graduate School43

Peer Reviewed

No43

Resource Type

Dissertation43

Rights Statement

Copyright Not Evaluated42
In Copyright1

Subject

Virus diseases of plants7
Strawberries -- Diseases and pests5
Beans -- Diseases and pests4
Potatoes -- Diseases and pests4
Douglas fir -- Diseases and pests3
more Subjects »

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