Effect of genotype and environment on spring barley and oats quality.

The investigation was carried out on the experimental field of Small Grains Research Center, Kragujevac. This paper presents the results of Kragujevac cultivars of spring barley (Jadran and Dinarac) and spring varieties oats (Slavuj, Lovcen and Vranac). Grain yield, 1000 kernel weight and test weight in grain two cultivars of barley and three cultivars of oats was determined in a threeByear field experiment. Average grain yield of barley cultivars ranged from 1.925 t/ha to 5.667 t/ha, as well the oat cultivars ranged from 2.140 t/ha to 4.518 t/ha. Grain yield differed significantly between years and the average of all cultivars was higher in 2009. compared to 2010. and 2011. Average values of 1000 grain weight of barley cultivars varied in the range from 40.20 to 45.40 g, as well of oat cultivars varied of 25.58 to 30.90 g. Based on obtained data from variance, it could be concluded that there are very significant differences in grain yield regarding the year of investigation, while among the investigated barley cultivars the differences were not significant. Significant differences in 1000 grain weight at investigated oats cultivars were found relative to the cultivar and very significant differences at yield and grain test weight relative to environmental factors, respectively the year of investigation.