EFFECTS OF FERTILIZATION AND VARIETY ON YIELD AND YIELD COMPONENTS OF WINTER TRITICALE

In the research carried out in the vicinity of Bijelo Polje (Montenegro) for a period 2009-2012.the effect of fertilization and variety on yield and yield components of winter triticale.The trial was set in random complete block design with three replications and included the five varieties (Odisej, Kg-20, Trijumf, Rtanj i Tango).The soil on which the experiment was performed was of alluvium type and the size of the experimental plot was 6 m².Unfertilized plot (the control), the lowest rate of nitrogen (60 kg N ha -1 ) alone and three steps of N fertilization (60 + 90 +120 kg N ha -1 ) on the same level of P and K (80 kg P 2 O 5 + 80 kg K 2 O kg ha -1 ) were applied.Results of the study showed significant effect of fertilization and varieties on yield and yield components of winter triticale.Tango had the highest average grain yield (5,3 t ha -1 ) while Kg-20 had the lowest (4,4 t ha -1 ).Also, Tango had the highest value of the 1000 grain mass, while Triumph had the highest value of hectoliter weight.The application of fertilizers has led to a very large and significant increase of yield compared with the control.Accordingly, all studied cultivars had the highest yield when the three nutritious elements, N, P and K, were used (120 kg ha -1 N, 80 kg ha -1 P 2 O 5 and 80 kg ha -1 K 2 O).These results are evidence for importance and role of fertilization and variety in expression of yield and yield components of winter triticale.