Tomato is amongst the most consumed vegetables in the world, not only for its culinary versatility but also for its high nutritional
value. In the last years, consumers have shown an increased concern regarding food origin and safety. The organic tomato production
has been a promising alternative for the consumer offering a safer food in relation to environmental, social and nutritional
aspects. This study assessed the chemical composition of tomato seeds produced in both conventional and organic systems by
INAA. The results showed significant differences (p≤0.05) in the mass fractions of Br, Cs, Eu, Fe, K, Mo, Na, Rb and Sm between both systems, indicating influence of the crop
management adopted in the different tomato production systems.