With the aim of evaluating several advanced breeding clones and varieties of potato (S. tuberosum) for their ability to transmit traits of interest to their progenies, a diallelic assay has been developed for this tetraploid and vegetatively propagated species, with six parents crossed in a diallel group, Griffing's model I, method 4, since the reciprocals were not included. A set of progenies was obtained and tested at various locations for 3 years. Data from field trials focused on agronomic traits, plant maturity and yield were collected, and tuber quality analysis were performed, focused on the specific gravity of the tubers and chip color.