Abstract
Wheat [Triticum aestivum] seed from 6 locations in Georgia [USA] was 0-59% infected with S. nodorum. Average incidence of infection from all samples was 10.7 and 9.4% for each of 2 index years. Shriveled and medium-sized seed had the highest percentage infection, but plump well-filled seed also had 8.1% infection during 2 yr. Differences in seed infection among the 8 cultivars tested paralleled field ratings of earlier studies for susceptibility to glume blotch Seed size and infection by S. nodorum had no effect on seed germination. Seed infection was least in the mountain region of Georgia and greatest toward the southern part of the state. Foliar application of captafol and mancozeb fungicides reduced seed infection. Selective use of foliar and/or seed treatment fungicides and growing site may be a means for reducing seedborne S. nodorum in certified seed production.