A two year field plot was conducted on experimental fields of Institute of field and vegetable crops in Novi Sad. The effect of stand density on seed yield, protein content and mass of 1000 seeds were researched. Old and new perspective confectionary sunflower hybrids of NS Seed Company were used. There were six stand densities, from 20000-70000 plants per hectare with increasing step of 10000. There were significant differences between hybrids and in both years the highest yield had new hybrid NS-H-6485. In average, all 6 hybrids maximal seed yield in both years were at stand density between 40000-50000 plants per hectare. Protein content was higher in old hybrids (Vranac and Cepko) and gradually decreases with increasing stand density. Mass of 1000 seed, which is an important quality parameter, was higher in all new hybrids and in average for all stand density in both years was higher than 100 g. Hybrid NS-Goliat had especially large seed, even more than 150 g. Stand density had high influence on 1000 seed mass, and seed mass at the highest stand density was for approximately 50 % lower than at the lowest stand density in both years.

sunflower, confectionary hybrids, yield, protein content, seed mass

Presentation: oral