Full diallel cross without reciprocals has been performed in order to hybridize five divergent parental genotypes (KP-01, KP-03, S-15, CH-1 and HM-6) and obtain progeny of F-1 and F-2 hybrids. The aim of this study has been to research the divergence of parents of F-1 and F-2 hybrids by applying the cluster analysis based on morphological markers, calculating the values of (according to UPOV) genotypes of parents and F-1 hybrids, and quantitative traits, taking into account the effect of five traits (early ripening, number of fruits per plant, pericarp thickness, fruit weight and vitamin C content). Cluster analysis based on quantitative values gave more applicable results in pepper breeding comparing to cluster analysis based on morphological factors. The most important trait in F-1 and F-2 generation has been fruit weight. [https://www.actahort.org/books/960/960_14.htm]
