Identification of common bean resistant sources to angular leaf spot disease in a brazilian germoplasm collection

Abstract

Angular leaf spot disease caused by Pseudocercospora griseola is one of the most important diseases of the canopy of common bean, occurring in most places where the crop is cultivated (MODA-CIRINO et al., 2012). Although the frequent use of fungicides common bean crop, the most economically viable alternative to control disease is the use of resistant cultivars. The germplasm collection of the Universidade Federal de Lavras has about 888 entries and its origins are genotypes developed by different breeding programs, collected in productions areas and other countries. The common bean breeding program from the University conduces a recurrent selection program to grain yield and angular leaf spot resistance since 1980. The aim of this study was to identify sources of resistance in the germplasm collection providing information of potential sources of resistance to introduce in breeding programs.