Results 151 to 160 of about 969 (163)
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Surface structure of the urediniospores of Puccinia coronata f. sp. avenae
Canadian Journal of Botany, 1970The surface structure of the echinulate urediniospores of Puccinia coronata f. sp. avenae race 320 was examined with the light microscope and the electron microscope. The scanning electron microscope revealed a network of ridges encircling the spines. On many urediniospores, small ring-like ridges, about 1 μ across, closely encircled the bases of the ...
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Biological Control, 2001
Abstract Crown rust of oats ( Puccinia coronata f. sp. avenae ) was investigated as a biocontrol agent for wild oats ( Avena fatua ) on San Clemente Island, California. Successful restoration of the native habitats of this island will involve the reduction of wild oats and revegetation with native grasses such as stipa ( Nassella pulchra ...
Laura D Carsten +3 more
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Abstract Crown rust of oats ( Puccinia coronata f. sp. avenae ) was investigated as a biocontrol agent for wild oats ( Avena fatua ) on San Clemente Island, California. Successful restoration of the native habitats of this island will involve the reduction of wild oats and revegetation with native grasses such as stipa ( Nassella pulchra ...
Laura D Carsten +3 more
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Transactions of the British Mycological Society, 1958
The investigations described concern physiological differentiation in crown rust of oats ( Puccinia coronata Corda f. sp. avenae ). The pathogenic reactions of thirteen races identified from twenty-four uredospore collections are presented, and the results discussed in relation to the problem of breeding disease resistant cultivars of oats in Britain.
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The investigations described concern physiological differentiation in crown rust of oats ( Puccinia coronata Corda f. sp. avenae ). The pathogenic reactions of thirteen races identified from twenty-four uredospore collections are presented, and the results discussed in relation to the problem of breeding disease resistant cultivars of oats in Britain.
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An improved method to quantifyPuccinia coronataf. sp.avenaeDNA in the hostAvena sativa
Canadian Journal of Plant Pathology, 2010Abstract Identification and genetic mapping of loci conferring resistance to polycyclic pathogens such as the rust fungi depends on accurate measurement of disease resistance. We converted an absolute quantification assay of Puccinia coronata DNA to a relative assay by adding a TaqMan® primers/probe set specific to the oat β-actin gene to simplify and ...
M. Acevedo +4 more
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Incidence and virulence ofPuccinia coronataf. sp. avenae in Canada from 1996 to 1998
Canadian Journal of Plant Pathology, 2000Crown rust (Puccinia coronata f. sp. avenae) of oat (Avena sativa) was severe in Manitoba in 1996 and 1998 but was relatively mild in 1997. Heavy crown rust infections were also commonly found on wild oat (Avena fatua) in eastern Saskatchewan in 1996 and 1998.
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Distribution and virulence of Puccinia coronata f. sp. avenae in Canada in 1991
Canadian Journal of Plant Pathology, 1993J. Chong, W.L. Seaman
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Plant Disease
The U.S. Department of Agriculture’s (USDA) annual oat crown rust survey provides critical insights into the pathogen’s regional and temporal virulence patterns. In the 2023 survey, 238 single-pustule Puccinia coronata f. sp. avenae (Pca) isolates from nine states were screened against 40 differential lines. Pathogen race diversity was high with 94.7%
Erin L. P. Moreau +2 more
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The U.S. Department of Agriculture’s (USDA) annual oat crown rust survey provides critical insights into the pathogen’s regional and temporal virulence patterns. In the 2023 survey, 238 single-pustule Puccinia coronata f. sp. avenae (Pca) isolates from nine states were screened against 40 differential lines. Pathogen race diversity was high with 94.7%
Erin L. P. Moreau +2 more
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Virulence in Puccinia coronata f. sp. avenae and P. graminis f. sp. avenae in New Zealand
Phytopathology, 1977openaire +1 more source
Germinability and Longevity of Teliospores of Puccinia coronata f. sp. avenae
Phytopathology, 1970openaire +1 more source
Incidence and virulence ofPuccinia coronataf. sp. avenae in Canada in 1995
Canadian Journal of Plant Pathology, 1997J. Chong, W.L. Seaman
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