SPIKE TRAITS AND YIELD PARAMETERS AMONG SOME WHEAT CULTIVARS UNDER AGRO-ECOLOGICAL CONDITION OF KOSOVO

Wheat yield is the complex trait, depending from genetic and environmental factors, level of applied technology and their interaction. Different wheat cultivars, from BC-Institute-Croatia, were evaluated for spike traits and grain yield. Field trials were conducted during the growing seasons 2010/11 and 2011/12, at the Plant Testing units of Seed company “Semenarna Kosovё” shpk, Prishtina, in Locality-Livadhi, located in geographical position: N42º05' 54", E 21º 06'36", and 581 M.A.S.L. The experimental design was complete random block with three replications (RCBD), according to combinations: (Years, Y-2 x Cultivars, C-13 x Replication, R-3 x Parameters, P-4) = 312 results. For data analysis were used ANOVA, and Multiple Comparisons with the Best, Fisher Method and Pearson correlation coefficient, according to the program MINITAB -16©. The aim of the research was to evaluate spike traits and grain yield for different wheat cultivars, from BC-Institute-Croatia. With this research was possible to determine the most promising wheat cultivars suitable to Kosova agricultural conditions. Two-year investigation, shown an average values for different parameters: Spike length (SL?=7.76 cm spike-1), Grain number per spike (GNS?= 40.75), Spike weight (SW?= 1.90 g spike-1) and Grain yield per square meters (GY?= 574.55 g m2). All evaluated parameters and interaction between genotype and years, showed significant difference for LSD 0.05 and 0.01 on level (P < 0.05 and 0.01).