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Chromosomal location of Pm35, a novel Aegilops tauschii derived powdery mildew resistance gene introgressed into common wheat (Triticum aestivum L.)
A detached leaf test and allelism test provided strong evidence for the presence of a novel Pm gene in NCD3, and this gene was designated Pm35. Expand
Specific adaptation by Mycosphaerella graminicola to a resistant wheat cultivar
Three cultivars of winter bread wheat were each inoculated as seedlings in the greenhouse with seven or eight individual isolates of Mycosphaerella graminicola collected in 1997 from each of the same cultivars in the field, indicating that commercial cultivation of Gene rapidly selected for strains in the local M. Graminicola population that were specifically adapted to overcome its resistance. Expand
Post-anthesis moisture increased Fusarium head blight and deoxynivalenol levels in North Carolina winter wheat.
This is the first investigation to show that extended post-flowering moisture can have a significant enhancing effect on FHB, FDK, DON, and percent infected kernels of wheat and imply that accurate forecasts of DON in small grains must take account of post-anthesis weather conditions. Expand
Trichothecene genotypes of Gibberella zeae from winter wheat fields in the eastern USA
Fusarium head blight (FHB), caused principally by Gibberella zeae (Fusarium graminearum), is a devastating disease of small grains such as wheat and barley worldwide. Grain infected with G. zeae mayExpand
Long‐Distance Dispersal and Accelerating Waves of Disease: Empirical Relationships
Simple empirical relationships for accelerating waves, based on inverse power law dispersal, are used and applied to diseases caused by pathogens that are wind dispersed or vectored by birds: the within‐season spread of a plant disease at spatial scales of <100 m in experimental plots, historical plant disease epidemics at the continental scale, and the transcontinental spread of avian influenza strain H5N1 in Eurasia and Africa. Expand
The Southeastern U.S. Fusarium Head Blight Epidemic of 2003
While this was not a controlled study, the results suggest that pre-flowering weather may have played a less significant role than post- Flowering weather, and was unlikely to have been a good predictor of FHB severity in the southeast in 2003. Expand
Winter Wheat Blends (Mixtures) Produce a Yield Advantage in North Carolina
Seed mixtures, or blends, of small grain cultivars are unknown in eastern U.S. wheat production, where numerous diseases and abiotic stresses often reduce yield and quality. In 2004-2005 andExpand
Aerial Dispersal and Multiple-Scale Spread of Epidemic Disease
A simple model of disease spread that incorporates logistic growth in time with an inverse power function for dispersal improves understanding of the geographic spread of emerging diseases, and facilitates the development of methods for predicting and preventing epidemics of plants, animals, and humans caused by pathogens that are capable of long-distance dispersal. Expand
Relevance of integrated disease management to resistance durability
Current theoretical approaches need to be supplemented with inclusion of more complex processes, such as the effect of fitness modifiers in pathogen populations and the influence of quantitative adaptation of pathogens to their hosts. Expand
Molecular characterization of a new powdery mildew resistance gene Pm54 in soft red winter wheat
A new powdery mildew resistance gene was identified on chromosome 6BL in soft red winter wheat, designated Pm54, and the closely linked marker Xbarc134 was highly polymorphic in a set of mildew differentials, indicating that the marker should be useful for pyramiding Pm 54 with other Pm genes by marker-assisted selection. Expand