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Application of Geographic Information Systems to Identify the Oversummering Regions of Blumeria graminis f. sp. tritici in China
(2013-09)
Blumeria graminis f. sp. tritici, the pathogen that causes wheat powdery mildew, can oversummer as mycelia or conidia on leaves of volunteer wheat plants in cool mountainous areas in China. In this study, the regions in ...
R gene-mediated resistance in Brassica napus that limits asexual sporulation but allows sexual sporulation by Pyrenopeziza brassicae (light leaf spot)
(2013-08)
The phenotype of a form of Brassica napus (oilseed rape) R gene-mediated resistance against the hemibiotrophic plant pathogen Pyrenopeziza brassicae, cause of light leaf spot, was investigated. Using a doubled haploid B. ...
Understanding interactions between quantitative resistance and qualitative resistance for sustainable management of Phoma stem canker (Leptosphaeria maculans ) in oilseed rape (Brassica napus)
(2013-08)
Effective control of phoma stem canker (Leptosphaeria maculans) relies on use of host resistance. Two types of resistance to L. maculans have been identified; major resistance (R) gene-mediated qualitative resistance and ...
The importance of asymptomatic infection in sustainable crop protection
(2013-08)
Scald or Rhynchosporium, caused by the fungus Rhynchosporium commune, is difficult to control with fungicides and severe epidemics may appear suddenly. Its epidemiology is not well understood as it is based on disease ...
The potential of temperature gradient plates to measure temperature response in fungal pathogens
(2013-08)
Temperature response curves have been studied for a wide variety of processes in an extensive number of organisms. The temperature response of growth in fungi, however, has rarely been studied across a wide range of ...
Pathogenicity of leptosphaeria maculans isolates obtained from brassica napus (oilseed rape) cultivars with the rlm7 resistance gene
(2013-08)
Isolates obtained from winter oilseed rape cultivars with the resistance gene Rlm7 were examined for their pathogenicity by inoculation onto cotyledons and true leaves of the susceptible cultivar Drakkar (no R gene) and ...
Epidemiology and spread of Leptosphaeria species (phoma stem canker) on brassicas
(2013-08)
Leptosphaeria maculans and L. biglobosa, cause of phoma stem canker disease of brassicas, are related pathogens of brassicas that were originally considered as one species but occupy slightly different ecological niches ...
Leptosphaeria spp. and Phoma stem canker on oilseed rape in China
(2013-08)
In China, the incidence of phoma stem canker observed in pre-harvest surveys from 2005 to 2012 was greater on winter oilseed rape in provinces along the Yangtze River (in May) than on spring oilseed rape in north China (in ...
Climate change increases risk of fusarium ear blight on wheat in central China
(2013-08)
In this work, a logistic weather-based regression model for estimating incidence of wheat fusarium ear blight in central China was developed, using up to 10 years of disease, anthesis date and weather data available for ...
Comparative epidemiology of Leptosphaeria maculans and L. biglobosa on oilseed rape in the UK
(2013-08)
Phoma stem canker is a major disease problem on winter oilseed rape (Brassica napus) in the UK. The disease is caused by two closely related species, Leptosphaeria maculans and L. biglobosa. Previous epidemiology work has ...