EFFECT OF CULTIVAR AND INCREASED NITROGEN QUANTITIES ON SOME PRODUCTIVE TRAITS OF TRITICALE

Abstract

In the research carried out in the period from 2009–2012, in the north of Montenegro, the influence of cultivar and different amounts of nitrogen on the productive traits of winter triticale was examined. The research covered 5 cultivars of winter triticale (Odyssey, Kg-20, Triumph, Rtanj and Tango). The experiment was set up by random block system in four repetitions. Unfertilized plot (the control) and three steps of N fertilization (60, 90 and 120 kg ha-1 N) on the same level of phosphorus and potassium (80 kg ha-1 P2O5 + 80 kg ha-1 K2O) were applied. The results showed that genotypes respond to the application of mineral nutrients, as well as to the increased nitrogen levels by changing productive properties. Variety Tango had the highest average grain yield, while Kg-20 had the lowest. Also, Tango had the highest value of the 1000 grain weight, while variety Triumph had the highest value of hectolitre weight. The application of fertilizers has led to a very large and significant increase of yield compared to the control. Based on the analysis of variance, it can be concluded that there were highly significant differences in grain yield among years of the research and significant differences at the 1000 grain weight and hectolitre weight