The objective of the research was to identify bean strains that possess at the same time resistance to anthracnose, high grain yield of Carioca grain type and resistance to angular leaf spot. 194 strains F5:6 were taken from seven segregating families derived from the cross H147 x B1. The H147 line has Carioca grain type and Co-5 resistance allele to several races of C. lindemuthianum. The B1 line also has the Carioca grain type, and the Co-4 resistance allele against others races of the same pathogen. The strains were evaluated in the spring/summer (2005/2006) in the municipality of Lavras, in the Southern of the State of Minas Gerais, with the Talismã cultivar and H147 line as check, based mainly on grain type and grain yield. 99 strains, together with the Talismã check, were selected and evaluated based on grain yield, grain type and angular leaf spot resistance in the summer (2006) in the same place. From these 99 strains, 24 strains were selected and evaluated in the winter/spring (2006) in two places, Lavras and Lambari, based on the type of grain and productivity, and using the same check. Those 24 strains were also inoculated with the race 321 of C. lindemuthianum that break the resistance of the Co-4 allele, but not of the Co-5. The SCAR marker using the SAS13 primer was used to detect the presence of the Co-4 allele. Fourteen strains were identified that have the Co-4/Co-5 allele pyramid, and, among them, four stand out in all evaluated features.
Phaseolus vulgaris; resistance; selection; Colletotrichum lindemuthianum
