Stability estimation for seed and oil yield of NS sunflower hybrids in small-plot trials and recommendations for 2010 sowing season

Abstract

The objective of this study was the evaluation of NS sunflower hybrids based on the results of seed yield, oil content and oil yield obtained in a network of small-plot trials in Vojvodina and central Serbia in 2009, as well as recommendations for 2010 sowing season. The hybrid location interaction was evaluated by AMMI model (Additive Main Effects and Multiplicative Interaction). In small plot trials, 19 NS sunflower hybrids on 11 locations in Vojvodina and 3 in central Serbia were included. Seed yield, oil content and oil yield were significantly different in the small-plot trials in the investigated regions. The highest average seed yields in Vojvodina were produced by Duško (3.75 t ha-1), Novosađanin (3.74 t ha-1), Kazanova (3.66 t ha-1), Sremac (3.62 t ha-1), Pobednik (3.59 t ha-1) and NS-H-111 (3.57 t ha-1). In the region of central Serbia seed yield over 3.50 t ha-1 was achieved by the hybrids Branko (3.57 t ha-1) and Duško (3.53 t ha-1). Hybrid Pobednik showed the highest average oil content in the region of Vojvodina (49.37 %), as well as in the region of central Serbia (49.96 %). Highest average oil yield (over 1.70 t ha-1) was produced by Pobednik, Novosađanin, NS-H-111 and Somborac in the Vojvodina region, and in central Serbia oil yield (over 1.60 t ha-1) was produced by Branko and Duško. In three-year trials in Vojvodina, eight hybrids (Duško, Kazanova, Sremac, Velja, Baća, Novosađanin, NS-H-111 and Pobednik) showed seed yield over general mean. Highest seed yield was given by hybrid Duško (3.63 t ha-1). AMMI biplot for seed yield showed that hybrids Duško, Novosađanin and NS-H-111 had the highest adaptability at all locations (Region Vojvodina and central Serbia), because the interaction had the lowest values. Pobednik and NS-H-111 showed the highest stability for oil content over all locations. The lowest interaction effects for oil yield were found with Duško and NS-H-111. The hybrid NS-H-111, with average mean value over general mean, was stable for all three investigated characters during 2009 sowing season.

Cilj istraživanja je bila ocena NS hibrida suncokreta na osnovu rezultata koje su ostvarili za prinos semena, sadržaj ulja i prinos ulja u mreži mikro-ogleda u Vojvodini i centralnoj Srbiji tokom 2009. godine, kao i davanje preporuke sortimenta za 2010. Interakcija hibrid lokalitet ocenjena je primenom AMMI modela (Additive Main Effects and Multiplicative Interaction). U mikro-ogledima je ispitivano 19 hibrida na 11 lokaliteta u Vojvodini i 3 u centralnoj Srbiji. Prinos semena, sadržaj ulja i prinos ulja su se u mreži mikro-ogleda značajno razlikovali u ispitivanim regionima. U Vojvodini su najveći prosečan prinos semena ostvarili hibridi Duško (3,75 t ha-1), Novosađanin (3,74 t ha-1), Kazanova (3,66 t ha-1), Sremac (3,62 t ha-1), Pobednik (3,59 t ha-1) i NS-H-111 (3,57 t ha-1). U regionu centralne Srbije prosečan prinos preko 3,5 t ha-1 postigli su hibridi Branko (3,57 t ha-1) i Duško (3,53 t ha-1). Najveći prosečan sadržaj ulja ostvario je hibrid Pobednik, kako u regionu Vojvodine (49,37 %), tako i u regionu centralne Srbije (49,96 %). Najveći prosečan prinos ulja (preko 1,70 t ha-1) u regionu Vojvodine postigli su Pobednik, Novosađanin, NS-H-111 i Somborac, a u centralnoj Srbiji najveći prosečan prinos ulja (preko 1,60 t ha-1) ostvarili su hidridi Branko i Duško. Na osnovu rezultata trogodišnjih ispitivanja u Vojvodini, osam hibrida (Duško, Kazanova, Sremac, Velja, Baća, Novosađanin, NS-H-111 i Pobednik) su dali prinos semena iznad opšteg proseka. Najveći prinos semena u proseku postigao je hibrid Duško (3,63 t ha-1). AMMI biplot za prinos semena pokazuje da su hibridi Duško, Novosađanin i NS-H-111 visoko adaptabilni na svim ispitivanim lokalitetima (region Vojvodina i centralna Srbija), zbog malog efekta interakcije. Kao najstabilniji hibridi u pogledu sadržaja ulja za ispitivane lokalitete pokazali su se Pobednik i NS-H-111. Najmanji efekat interakcije za prinos ulja imali su Duško i NS-H-111. Hibrid NS-H-111, sa vrednošću prinosa ulja iznad opšteg proseka, bio je stabilan za sve tri ispitivane osobine tokom 2009.