| genetic structure of phaeosphaeria nodorum populations in the north-central and midwestern united states. | stagonospora nodorum blotch, caused by phaeosphaeria nodorum, is considered one of the most destructive foliar diseases of wheat in the united states. however, relatively little is known about the population biology of this fungus in the major wheat-growing regions of the central united states. to rectify this situation, 308 single-spore isolates of p. nodorum were analyzed from 12 populations, five from hard red spring wheat cultivars in minnesota and north dakota and seven from soft red winter ... | 2008 | 18943244 |