The influence of hybrids of diferent FAO crop groups and agro-ecological conditions on maize yield

Kukuruz (Zea mays L.) je vrlo važna ratarska kultura u Republici Srbiji i svetu, sa tendencijom povećanja proizvodnih površina i značaja na tržištu. Uspeh stabilne proizvodnje u velikoj meri zavisi od nivoa primenjene agrotehnike i umešnosti u izboru hibrida, kao i vremenskih prilika u toku procesa proizvodnje. Cilj istraživanja bio je da se tokom dvogodišnjih istraživanja utvrdi uticaj hibrida različitih FAO grupa zrenja i klimatskih prilika na prinos zrna kukuruza. Ispitivanja su obavljena tokom 2014. i 2015. godine na teritoriji opštine Leskovac. U ogledu je bilo zastupljeno 6 hibrida kukuruza (ZP 434, NS 4023, ZP 555, NS 5051, ZP 666, NS 6030), koji su zasejani sredinom aprila. Ogled je zasnovan po slučajnom blok sistemu, u tri ponavljanja. Uticaj hibrida različitih FAO grupa zrenja i različitih agroekoloških uslova na prinos zrna kukuruza bio je jako izražen. Najveći prosečan prinos tokom 2014. godine ostvario je hibrid NS 6030 (11.068 kg ha-1), dok je u 2015. godini najmanji prosečan prinos ostvario isti hibrid (6.443 kg ha-1). Ostvareni prinosi u 2014. godini kod svih ispitivanih hibrida značajno su veći u odnosu na prinose u 2015. godini.Maize (Zea mays L.) is a very important field crop in the Republic of Serbia and the world, with the tendency of further expansion of production area and market importance. The success of stable production depends to a large extent on the level of applied agricultural techniques and skill in the selection of hybrids, as well as weather conditions during the production process. The goal of the research was to determine the influence of hybrids of different FAO ripening groups and climatic conditions on the grain yield of corn during two years of research. The tests were carried out in 2014 and 2015 in the territory of the municipality of Leskovac. The trial included 6 maize hybrids (ZP 434, NS 4023, ZP 555, NS 5051, ZP 666, NS 6030), which were sown in mid-April. The experiment was based on a randomized block system, with three replications. The influence of hybrids of different FAO ripening groups and different agro-ecological conditions on corn grain yield was very pronounced. The highest average yield in 2014 was achieved by hybrid NS 6030 (11,068 kg ha-1), while the lowest yield in 2015 was achieved by the same hybrid (6,443 kg ha-1). The yields achieved in 2014 for all tested hybrids were significantly higher than the yields in 2015