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Filtering by: Subject Conifers -- Diseases and pests Academic Affiliation Botany and Plant Pathology Committee Member Johnson, Ken Degree Level Master's

Histological comparisons of needle tissues of four species of white pine infected by Cronartium ribicola

Creator:

Sweeney, Katarina

Abstract:

Hypersensitive response-like (HR-like) needle reactions to infection by the white pine blister rust pathogen, Cronartium ribicola, have been reported for several species of five needle pines native to western North America. The best-studied examples are in Pinus monticola and P. lambertiana. In these species a "needle spot" phenotype has been...

Resource Type:

Masters Thesis

Full Text:

. flexilis, P. strobiformis, P.aristata, P. longaeva, and P. balfouriana. The pathogen and the disease is
Effect of wheat cultivar mixtures on populations of Puccinia striiformis races

Creator:

DiLeone, Julie A.

Abstract:

This study quantified the frequency of simple versus complex races of Puccinia striiformis Westend. in mixtures of wheat cultivars possessing different race-specific resistance genes. A simple race of a pathogen can infect only one component, and a complex race of the pathogen can infect two or more components of an...

Resource Type:

Masters Thesis

Full Text:

populations that reduce disease severity. In the center of coevolution for the rusts and small grains

ScholarsArchive@OSU

Histological comparisons of needle tissues of four species of white pine infected by Cronartium ribicola

Effect of wheat cultivar mixtures on populations of Puccinia striiformis races

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