The Analysis of Quantitative Resistance to Foliar Diseases of Maize.

1 USDA-ARS, Dept of Plant Pathology, North Carolina State University, Raleigh, NC 27695-7616, 2 Computer Science Dept., University of Missouri-Columbia, 3 Dept. of Botany and Plant Pathology, Purdue University, West Lafayette, IN, 4 USDA-ARS, Dept of Crop Science, North Carolina State University, Raleigh, NC 27695. 5 Dept. of Plant Pathology, Cornell University, Ithaca, NY Introduction We are interested in the analysis of quantitative resistance the dominant form of resistance utilized in cultivated maize. Very little is known about the molecular genetic or physiological basis of this type of resistance in maize or any other crop. Working with the foliar diseases gray leaf spot (GLS), southern leaf blight (SLB) and northern leaf blight (NLB), we are identifying and mapping new sources of resistance from diverse germplasm.