Taking into consideration fact that the genetic diversity for concentration of individual elements of mineral nutrition is an important problem both theoretically and practicâlly, we undertook an investigation with sunflower plants. Sunflower specificity in N, P, K, Ca and Mg concentration was examined with 20 inbred lines. Collections of inbreds belong to the Institute of Field and Vegetable Crops, Faculty of Agriculture, Novi Sad. The inbreds were grown in nutrient solution by the method of water culture, in greenhouse for 25 days. The plants were examined for the content of N, P, K, Ca, and Mg. Also, dry mass of root, stem and leaf as well as leaf area were measured. On the basis of the results obtained one can draw the following conclusions. Concentration of the elements depended on plant organ analyzed (root, stem, leaf. In all inbreds examined, the highest concentration of N and Ca was found in leaf, then in stem and root, and the highesl Mg concentration was recorded in stem, then in leafand root. In a great number of lines, the highest P concentration was found in root. The highest chemical heterogeneity in different plant organs was recorded with K. The results show that the genetic specificity for mineral nutrition is manifested not only through different contents of mineral elements but also in their distribution into individual plant organs.