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Filtering by: Subject Iris (Plant) -- Diseases and pests Remove constraint Subject: Iris (Plant) -- Diseases and pests

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Factors affecting development of iris rhizome rot caused by Botrytis convoluta Whetzel and Drayton

Creator:

Maas, J. L.

Abstract:

Abundant conidial and sclerotial production occurs on iris plants infected with Botrytis convoluta Whetzel and Drayton during the cool moist months of the year. Experiments were designed to study the survival and inoculum potential of conidia and sclerotia. Basic nutritional requirements of the fungus in culture were also studied. Results...

Resource Type:

Dissertation

Full Text:

). The disease is economically important to commercial iris growers and an unknown amount of loss
The possibility of inter-transmission of tulip mosaic and iris mosaic by insect vectors, especially aphids

Creator:

Whitaker, William Carey

Resource Type:

Masters Thesis

Full Text:

and vigor, and the bulbs produce fewer and weaker off-sets. A plant with mosaic disease is nearly
Diseases of narcissus

Creator:

Oregon State Agricultural College. Agricultural Experiment Station, McWhorter, Frank, 1896-1985, and Weiss, Freeman

Abstract:

Published June 1932. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

Resource Type:

Technical Report

Full Text:

STATION BULLETIN 304 NARCISSUS MOSAIC OR GRAY DISEASE Plant pathologists and experienced growers in both
Etiology of beet seedling necrosis as a basis for control

Creator:

Yale, John Wesley, 1924-

Resource Type:

Dissertation

Full Text:

Charge of Major Redcted forÑvacy Head of Department of Bpt and Plant Pathology Redacted for privacy
Perennial canker of apple trees : a preliminary report

Creator:

Zeller, S. M. (Sanford Myron), 1885-1948, Childs, Leroy, 1888-, and Oregon Agricultural College. Experiment Station

Abstract:

Published August 1925. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

Resource Type:

Technical Report

Full Text:

especially the Hood River Valley, where the disease is well distributed in the upper and low- er valleys. The
A method of breeding for resistance to fusarium and bacterial wilt in alfalfa

Creator:

Wilson, Marvin L.

Resource Type:

Dissertation

Full Text:

. . . . . . . . . . . . . . . . . 53 6. The Mean Disease Indexes of Some Varieties and Strains of Alfalfa to Pkiaari Alit
Cytological and histological changes induced by western cucumber mosaic

Creator:

Porter, Clark Alfred

Resource Type:

Dissertation

Full Text:

the degree of DOCTOR OF PHI LOS OPHY June 193 Prof essor of Botany and Plant Pathology In
Bionomics of the clover cyst nematode, Heterodera trifolii (Goffart, 1932) Oostenbrink, 1939 (Nematoda: Heteroderidae)

Creator:

Sen, Arun Kumar

Resource Type:

Masters Thesis

Full Text:

the first plant parasitic nematode and described the first plant disease caused by a nematode
Studies on viruses isolated from roses with rose mosaic symptoms

Creator:

Watson, Thomas Ray

Abstract:

Previous work on the rose mosaic virus has produced uncertainty concerning the identity and properties of this virus. This work was undertaken to help establish the true identity of the virus and to determine some of its properties. A mechanically transmissible virus associated with rose mosaic virus disease of Rosa...

Resource Type:

Masters Thesis

Full Text:

systemic method, the plant is in- oculated with the virus and later the entire plant shows virus disease
The inheritance of resistance to bean yellow mosaic virus in Phaseolus vulgaris L

Creator:

Baggett, James R.

Resource Type:

Dissertation

Full Text:

such environ- mental conditions as light and temperature may affect the expression of plant disease

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Academic Affiliation

Botany and Plant Pathology39
Horticulture14
Botany12
Forest Science10
Entomology8
more Academic Affiliations »

Advisor

Milbrath, J. A.7
Hampton, Richard O.4
Ocamb, Cynthia M.4
Martin, Robert R.3
Mcwhorter, Frank P.3
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1931 to 2019

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Unknown 73

Committee Member

Hansen, Everett5
Parke, Jennifer4
Wolpert, Tom4
Johnson, Ken3
Azarenko, Anita2
more Committee Members »

Conference Name

Pacific Northwest Insect Management Conference1

Conference Section/Track

Foliage and Seed Feeding Pests1

Creator

James, Robert L.22
Oregon State University. Extension Service20
United States. Forest Service. Northern Region19
Oregon State College. Agricultural Experiment Station10
Walton, Vaughn M.6
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Date

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Current results range from 1902 to 2019

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Decade

2010-201919
2000-200948
1990-199925
1980-198928
1970-197913
1960-196915
1950-195910
1940-19497
1930-19397
1920-19293
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Degree Field

Botany and Plant Pathology34
Horticulture14
Botany11
Forest Science10
Entomology8
more Degree Fields »

Degree Level

Master's58
Doctoral44
Bachelor's1

Degree Name

Master of Science (M.S.)58
Doctor of Philosophy (Ph.D.)44
Honors Bachelor of Science (H.B.S.)1

File Format

application/pdf37

Language

English [eng]174
Spanish; Castilian [spa]2

License

All rights reserved34

Location

Oregon, Oregon, United States, (Administrative Boundary)1

Non-Academic Affiliation

Oregon State University. Graduate School100
Oregon State University. Agricultural Experiment Station23
Oregon State University. Extension Service20
Oregon State University. Honors College1

Peer Reviewed

No103
Yes16

Resource Type

Technical Report71
Masters Thesis58
Dissertation44
Conference Proceeding1
Honors College Thesis1
more Resource Types »

Rights Statement

Copyright Not Evaluated114
In Copyright58
No Copyright - United States4

Subject

Virus diseases of plants14
Report (United States. Forest Service. Northern Region. Forest Pest Management)10
Plant viruses6
Beans -- Diseases and pests4
Canker (Plant disease)4
more Subjects »

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