Tomato varieties H-3108, Carcamán, L-43 and H-1908(ESEN) were evaluated with the application of different doses of QuitoMax from the seedling stage to the flowering stage, with the objective of evaluating the agronomic response of the tomato crop to the application of this product. Variables related to seedling quality were evaluated under seedling conditions. Once the seedlings were transplanted, the bioproduct was applied at different doses at the beginning of flowering. From the results obtained, we can conclude a high incidence of QuitoMax on yield, being between 10% and 30% higher. The best dose was 300 mg ha-1 and the beginning of flowering was the best moment to apply QuitoMax.