Description of new maize hybrids: NS 5073, NS 5120, NS 5021 i NS ALEKSANDRA

Abstract

Breeding of maize at the Institute of Field and Vegetable Crops, Novi Sad, based on heterosis phenomenon started in the middle of last century. The permanent goal in selection in past and future has been in increasing grain yield potential, reducing water content and improving adaptability to stressful conditions. New NS maize hybrids NS 5073, NS 5120, NS 5021 and NS ALEKSANDRA exceeded standard hybrid in yield by 0.984tha-1 in the average, which represents an increase at about 112 kg per cycle of selection. Besides higher grain yield, new hybrids have lower moisture content, better pest's resistance and stable performance in various conditions.

Oplemenjivanje kukuruza u Institutu zasnovano na heterozisu započeto je sredinom prošlog veka. Permanentan cilj u oplemenjivanju, do sada, a verovatno i u buduće je povećanje prinosa, smanjenje udela vlage u zrnu i povećanje adaptabilnosti na stresne uslove. Novi hibridi kukuruza: NS 5073, NS 5120, NS 5021 i NS ALEKSANDRA u odnosu na standard imaju veći prinos zrna za 0.984tha-1 u proseku što predstavlja povećanje od oko 112 kg po jednom ciklusu selekcije. Novi hibridi će dati značajan doprinos proizvodnji kukuruza, jer pored višeg prinosa zrna imaju niži sadržaj vlage u zrnu u berbi (naročito NS 5021 i NS ALEKSANDRA), otpornost prema glavnim prouzrokovačima bolesti na nivou ili bolju od standarda, čvršće stablo i dobru stabilnost.