Development of selection criteria for improving grain yield in wheat grown in different agro-ecological environments

Various statistical methods were applied in this research: analysis of genetic parameters, Pearson's correlation, genotypic and phenotypic correlations, Path analysis, with the aim creating a selection criterion for increasing wheat grain yield. A two-year experimental study was conducted twenty-seven genotypes, grown on two localities: Rimski Šančevi (Bačka, Vojvodina), Chernozem soil type; Kumane (Banat, Solonjec type. The highest values coefficient variation (CVp) had weight per plant (17.44% 13.81% Solonetz), while lowest value CVp thousand (8.12% 5.47% Solonetz). On Chernozem, (CVg) ranged from 1.51%, number grains spike, to 9.17% spike length, Solonetz, CVg (0.36%) height one (11.15%). At both localities, yield highly significant positive correlations all analyzed traits, except length. In favorable environmental conditions (Chernozem), revealed that directly depends (0.317**), (0.232**) (0.209**), other traits have indirect effect over mentioned traits. Under salinity stress conditions, direct (0.891**), which makes trait good breeding tolerance.