Evaluation of NS sunflower hybrids in small-plot trials via hybrid × location interaction

Abstract

The aim of this study was to evaluate NS sunflower hybrids on the basis of the results of seed yield, seed oil content and oil yield obtained in a network of small-plot trials in Serbia in 2011. The trial included 9 hybrids and 14 locations. Seed yield, seed oil content and oil yield were significantly different in small-plot trials in the investigated regions of Serbia. The highest average seed yield was produced by Sremac (3.67 t ha-1), Velja (3.62 t ha-1), Duško (3.56 t ha-1) and Novosađanin (3.55 t ha-1). On the location Rimski šančevi the seed yield (4.48 t ha-1) was significantly highest. Average oil content for hybrids grown in 14 locations was 47.25%. Hybrids Baća (50.26%), NS-H-111 (48.91%), Bačvanin (48.70%) and Novosađanin (47.83%) showed the highest average seed oil content. The highest average oil yield was produced by Baća (1.71 t ha-1), Novosađanin (1.70), Velja (1.67 t ha-1), Sremac (1.63 t ha-1) and NS-H-111 (1.63 t ha-1). Locations with the highest oil yield were Rimski šančevi (2.03 t ha-1) and Sombor (1.96 t ha-1). In the four-year trials in Vojvodina, the average seed yield of 9 hybrids was 3.35 t ha-1. Seed yield over general mean was reached by three hybrids (Duško, Sremac and Velja). The highest seed yield was reached by hybrid Duško (3.56 t ha-1). AMMI1 biplot showed that most stable and with high seed and oil yield were the hybrids Duško, Sremac and Baća, and for oil content Baća, Bačvanin and NS-H-111.