The research goal consisted in obtaining the new tomato genotypes with valuable characters, useful for the breeding process. As a source of initial research material, 10 performance lines of tomatoes were used L.4, L.20, L.25, L.44, L.47, L.48, L.49, L.55, L.63, L.317 created in the plant resistance genetics laboratory and three varieties as a check Peto-86, Novinca Pridnestrovia and Elvira. The evaluation of the lines was performed according to the most valuable phase indices that determine the vegetation period, fruit shape, pericarp and mesocarp thickness. Propose: the evaluation of the lines of the phases which determined the period of vegetation. It was necessary to emphasize that the selective analysis of the most successful tomato lines showed that during the study period, recombinant lines with various types of precocity (early, early and late average) were revealed. The results obtained showed that the early tomato lines L.317 and L.63 exhibited a lower precocity period compared to the 7-11 days of the check variety Peto-86. Investigations performed on early medium-grain tomato lines L.47 and L.44 demonstrated the longevity of the reduced maturity period 10 and 11 days compared to the check variant Novinca Pridnestrovia. For the medium-term lines L.20, L.25 the precocity ratio was lower than the control Elvira with 10,4 and 7,0 days. In this contest, the tomato lines had more pronounced values 0,6-0,8mm than the check 0,40,7 mm. According to the results of the mesocarp thickness, there was an increase compared to the check variant L.20, L.25, L.49 compared to the check variant Peto86‚ Novinca Pridnestrovia and Elvira. It was found that tomato lines with thickness indices of pericarp greater than 6 mm and the thickness of the 8 mm mesocarp were destined for the transport of the fruits. Productivity on promising lines was peaked at 49,5-58,7 t/ha. compared to 33,9 -50,7 t/ha. The early tomato lines L.317 and L.63 showed a period of precocity lower by 711 days compared to the standard variety Peto-86. The dry matter content in some lines was higher than in the standard varieties. Productivity on promising lines was peaked at 49,5-58,7 t/ha. compared to 33,9 -50,7 t/ha.