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Filtering by: Advisor Powelson, R. L. Creator Beaver, Richard Gary, 1939

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:

STRIIFORMIS WEST. Abs,.ract approved: Redacted for Privacy R. L. Powelson Race identification of stripe rust
Physiologic specialization of stripe rust (Puccinia striiformis West.) in the Pacific Northwest

Creator:

Beaver, Richard Gary, 1939-

Abstract:

The physiologic specialization of nine isolates of stripe rust (Puccinia striiformis West.) collected in the Pacific Northwest was determined. The separation of races was based on the differential susceptibility of the following wheat varieties: Cappelle Desprez, Chinese 166, Dippes Triumph, Druchamp, Etoile de Choisy, Flamingo, Gaines, Golden, Ibis, Leda, Michigan...

Resource Type:

Masters Thesis

Full Text:

Velda D. Mullins for Richard Gary Beaver ACKNOWLEDGMENT I wish to thank Dr. R. L. Powelson for his