PRODUKTIVNOST NS HIBRIDA SUNCOKRETA U MULTILOKACIJSKIM OGLEDIMA I PREPORUKA SORTIMENTA ZA SETVU U 2009. GODINI.

This paper presents the results of productivity traits (seed yield, oil content and oil yield) of NS sunflower hybrids grown in a network of small-plot trials in Vojvodina and central Serbia in 2008 as well as recommendations for the 2009 sowing season. The hybrid x location interaction is evaluated by the AMMI model. The small-plot trials made use of 20 NS sunflower hybrids and 13 locations in Vojvodina and 4 in central Serbia. Seed yield, oil content and oil yield were significantly different in the small-plot trials in the investigated regions. In Vojvodina the highest average seed yield was produced by the hybrid Dusko (3.79 t/ha), followed by Velja (3.67 t/ha), Sremac (3.62 t/ha), Kazanova (3.60 t/ha), Baca (3.60 t/ha) and Vladimir (3.59 t/ha). In central Serbia, the hybrid Sremac (3.48 t/ha) achieved the highest seed yield. The highest average seed yield was achieved in the locality Krcedin (4.02 t/ha). In five locations in Vojvodina, seed yield was over 3.5 t/ha (Donji Petrovci, Kovin, Rimski Sancevi, Sombor, Nestin). In 2008 the average oil content for the 20 hybrids in Vojvodina was 47.72%. The highest oil content was found in the hybrid Baca (50.22%). In central Serbia oil content varied between 43.23% (NS-H-45) and 48.92% (Plamen). Average oil yield (1.66 t/ha) in 2008 for all the hybrids and locations in Vojvodina was significantly higher than in the region of central Serbia, with the average of 1.42%. In a four-year trial in Vojvodina the hybrids Sremac (3.11 t/ha), Sumadinac (2.96 t/ha) and Velja (2.90 t/ha) proved their worth by producing the highest seed yield. AMMI biplot for seed yield showed that the hybrid Dusko had the highest adaptability in all locations, because the interaction had the lowest value. Also, low interaction effects were stated by the hybrids Kazanova, Vladimir and Baca. These hybrids had above-average seed yields for the whole of the small-plot trials in 2008. The hybrids Baca, Dusko, Kazanova, Vladimir, Milan and Sremac, which had mean values above the general mean for oil yield, also had low interaction effects. [ABSTRACT FROM AUTHOR]