Tomato cultivars Ângela I.5100, Floradade, IPA-05, Jumbo AG-592, Santa Clara and their diallel crosses, not including reciprocals, were evaluated as to ten morphologycal and five fruit quality traits, using Gardner and Eberhart's methodology. Enough variability among parental was detected for the majority of the studied traits. The results clearly indicated that significant increases in total carotenoid and beta-carotene contents are to be expected in crosses involving Ângela I.5100, Floradade and Jumbo AG-592 while the cross AG-592 x Ângela I.5100 is the most proper for increases in vitamin C content. Taking into account all the characters tested, cultivar Ângela I.5100, Floradade and Santa Clara showed the best potentials for plant breding purposes.
Lycopersicon esculentum; Lycopersicon esculentum; diallel analysis; heterosis
