Banja Luka : Narodna i univerzitetska biblioteka Republike Srpske
Abstract
The experiments were performed on samples of biomass and grains of winter barley varieties
(Rekord and Zlatnik) for two years. The parameters of fertility and quality (yield, mass of 1000
grains and hectoliter mass, moisture, starch, lipids, ash, cellulose and β-glucan) were monitored.
The average grain yield ranged from 3,933 t ha-1 to 5,065 t ha-1. Grain yield differed
significantly between years and for all genotypes and on average was higher in the first year
compared to the second year of cultivation. Average mass values of 1000 grains ranged from
41.60 to 54.83 g. It was found that there are very significant differences in grain yield compared
to the year of testing, while the differences between the studied barley varieties were not
significant. The results of the chemical composition of barley grains have shown that the tested
parameters deviated between cultivars and years. The starch composition varied from 48.8% to
50.1%, while the composition of the crude protein varied from 10.5% to 11.3%. The average
composition of the lipids per dry matter was 1.68% for cultivar Rekord and 1.77% for cultivar
Zlatnik, respectively. In all tested samples, the composition of the crude cellulose varied from
3.27% to 3.82%. The obtained results showed that the lowest composition of the crude ashes was
recorded in the sample of cultivar Rekord (1.58%), while the highest was detected in the sample
of cultivar Zlatnik (1.70%). The composition of moisture ranged from 10.11% to 11.01%, while
composition of β-glucan varied from 3.9% to 4.23%
