Efekat roka setve na sadržaj i prinos ulja NS hibrida suncokreta

Abstract

U cilju ocene uticaja roka setve na sadržaj i prinos ulja NS hibrida suncokreta analizirani su rezultati ogleda koji su izvedeni tokom 2020. godine na lokalitetu Rimski šančevi. Ispitivana su tri NS hibrida (NS Sanol, NS H 7749, NS Kiril). Zasejani su u osam rokova setve počev od 20.03. sa razmakom od 10 dana (R1 20.03., R2 01.04., R3 10.04., R4 20.04., R5 01.05., R6 10.05., R7 20.05., R8 01.06). Između ispitivanih hibrida, kao i između rokova setve postojale su značajne razlike u sadržaju i prinosu ulja. Na sadržaj ulja, kao i na prinos ulja najveći uticaj imao je rok setve (preko 50%), zatim interakcija hibrid × rok setve i najmanji uticaj pokazao je hibrid. Svi izvori varijacije bili su visoko značajni za obe ispitivane osobine. Prosečan sadržaj ulja za sve hibride i rokove setve iznosio je 44,88%, a za prinos ulja 1,83 t/ha. Najveći prosečan sadržaj ulja dao je hibrid NS Sanol (45,98), a prinos ulja NS Kiril (2,01 t/ha). U rokovima setve R1, R2, R4 i R5 bile su najveće srednje vrednosti sadržaja ulja, Prinos ulja bio je najveći u dva srednja roka setve u R4 (2,22 t/ha) i R5 (2,15 t/ha). Varijabilnost sadržaja ulja iznosila je 1,8%, a prinosa ulja 12,1%.

In order to assess the impact of the sowing date on the oil content and oil yield in NS sunflower hybrids, the experiment was carried out in 2020 at the locality Rimski šančevi. Three NS hybrids (NS Sanol, NS H 7749, NS Kiril) were tested. They were sown in eight sowing dates starting from March 20th with an interval of 10 days (R1 20.03., R2 01.04., R3 10.04., R4 20.04., R5 01.05., R6 10.05., R7 20.05., R8 01.06.). There were significant differences in oil content and oil yield between the examined hybrids, as well as between sowing dates. The sowing date (over 50%), had the greatest influence on the oil content and oil yield followed by the hybrid × sowing date interaction and the least influence was shown by the hybrid. All sources of variation were highly significant for both examined traits. The average oil content for all hybrids and sowing dates was 44.88%, and for oil yield 1.83 t/ha. The highest average oil content showed the hybrid NS Sanol (45.98), and the average oil yield was stated by NS Kiril (2.01 t/ha). The sowing dates R1, R2, R4 and R5 had the highest mean values for oil content. Oil yield was the highest in the two sowing dates in R4 (2.22 t/ha) and R5 (2.15 t/ha). The variability of the oil content was 1.8% and of the oil yield 12.1%.