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Filtering by: Decade 1960-1969 Remove constraint Decade: 1960-1969 Subject Virus diseases of plants Remove constraint Subject: Virus diseases of plants

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Seed and pollen transmission of cherry ring spot virus in buttercup squash

Creator:

Das, Chittaranjan

Resource Type:

Dissertation
Susceptibility of peas to aphid inoculation with bean yellow mosaic virus

Creator:

Welton, R. E. (Richard Elroy)

Abstract:

The effects of soil moisture, mineral nutrition and temperature on the susceptibility of peas to inoculation with bean yellow mosaic virus (BYMV) by the green peach aphid, Myzus persicae (Sulz.) were investigated along with three vector-virus relationships. In addition, a comparative study was made of two methods of evaluating susceptibility...

Resource Type:

Dissertation
Aphid transmission of an undescribed virus from sweet cherry

Creator:

Smith, Gordon Kent

Resource Type:

Masters Thesis
Isolation and identification of dahlia viruses

Creator:

Lawson, Roger Harold

Abstract:

Three viruses were isolated from dahlias using a modification of Yarwood's leaf-disc method of inoculation. Two of these isolates have been reported previously in dahlias. In addition, a fourth virus was isolated using a liquid-nitrogen transmission technique. Dahlia virus isolate 1 possessed host range and thermal inactivation properties similar to...

Resource Type:

Dissertation
Comparison of the host range and physical properties of Eola rasp leaf, tobacco ringspot and tomato ringspot viruses

Creator:

Liu, Kang-chien

Abstract:

Eola rasp leaf of cherry was first described by Milbrath and Reynolds in Oregon in 1961. Dr. Cadman of the Scottish Horticultural Research Institute suggested that this disease was incited by a strain of tomato ringspot virus (TomRSV), but since then controversial results with some isolates of EoIa rasp leaf...

Resource Type:

Masters Thesis
The use of flowering crab apples for the detection of latent viruses in apples

Creator:

Reynolds, James Edward

Abstract:

Recent investigations indicate that several latent viruses of apples exist in common commercial apple stocks, but these viruses and their relationships are incompletely understood. This thesis describes investigations of crab apples as indicators of latent viruses of apples. Eighty-eight varieties and species of crab apples were tested as indicators of...

Resource Type:

Dissertation
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
Use of petroleum oils to prevent spread of stylet-borne viruses by aphids

Creator:

Ascerno, Mark E.

Abstract:

The use of petroleum oil prevented, to varying degrees: the transmission of three stylet-borne viruses in three different crops. The use of oils resulted in a marked improvement in the number of lily bulbs harvested from treated plots as compared to the number of lily bulbs harvested from untreated plots....

Resource Type:

Masters Thesis

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Academic Affiliation

Botany and Plant Pathology3
Entomology3
Botany2

Advisor

Milbrath, J. A.3
Swenson, K. G.3
Allen, Thomas C.1
Allen, Thomas C., jr.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1961 to 1969

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Creator

Ascerno, Mark E.1
Das, Chittaranjan1
Lawson, Roger Harold1
Liu, Kang Chien1
Reynolds, James Edward1
more Creators »

Date

Date range begin – Date range end

Current results range from 1960 to 1969

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Decade

1960-1969[remove]8

Degree Field

Botany3
Entomology3
Botany and Plant Pathology2

Degree Level

Doctoral4
Master's4

Degree Name

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

Language

English [eng]8

Non-Academic Affiliation

Oregon State University. Graduate School8

Peer Reviewed

No8

Resource Type

Dissertation4
Masters Thesis4

Rights Statement

Copyright Not Evaluated8

Subject

Virus diseases of plants[remove]8
Aphididae3
Apples -- Diseases and pests1
Bean mosaic virus1
Cherry -- Diseases and pests1
more Subjects »

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