300
had two-row. Significant statistical differences were noticed between tested barley
varieties, except between the following genotypes: Hit, Egej, Perun, Orfej, Zagorec,
and Petra. On the other hand, the genotypes Line 1, Rex, and GK Stramm belong to
the same group which means that no statistical difference was recorded. Also, the
genotypes NS 525 and Kuber have similar values for zinc concentration, and they
didn’t differ between them. The genotypes with high value of zinc, after NS 589,
were Odisej and GK Judy (6.05 mg/kg and 6.01 mg/kg, respectively), and they also
didn’t show difference between them.
According to Newman and Newman (2008), the average values for copper, manganese, iron, and zinc content were 4.98 mg/kg, 19.43 mg/kg, 36.0 mg/kg, and
27.7 mg/kg, respectively, and they were much higher compared to the mean values
for the same elements from our research.
The essence of nickel as a micronutrient in plants has been established because
it is part of the active site of the enzyme urease, which hydrolyzes urea in plant tissues (Polacco 1977; Eskew et al. 1984). Nickel (Ni) concentration in barley varieties is given in Table 10.10. Nickel content ranges from 0.014 mg/kg in Univers
variety to 7.743 mg/kg in NS 525 genotype. Significant differences were obtained
between tested barley genotypes, except between Egej and Odisej (both two-row
barley varieties). Also, no statistically significant differences were noticed between
the following genotypes: Devinija, Somborac, and Liliana. The average value for
nickel content in all analyzed barley genotypes was 1.223 mg/kg.
Jâkobsone et al. (2015) investigated the concentration of macro- and trace elements in cereals (rye, barley, wheat, triticale, and oats) cultivated in Latvia.
According to this research, the copper and zinc concentrations were very variable in
barley (1.71–5.9 mg/kg and 16–53 mg/kg, respectively). The content of nickel
(1.088 mg/kg) and sodium concentration (107.4 mg/kg) were the highest in barley
cultivars compared to other cereals. Aluminum was 3.242 mg/kg, cooper 3.607 mg/
kg, calcium 375.6 mg/kg, iron 37.8 mg/kg, magnesium 1157 mg/kg, and zinc
26.4 mg/kg, while the content of manganese (12.4 mg/kg) was the lowest in barley
samples compared to other tested cereals. The data from our research showed that
the concentrations of all tested elements were lower compared to results obtained
from Jâkobsone et al. (2015) study for all elements except for nickel and aluminum.
In Table 10.11 is given basic descriptive statistics for tested elements in barley
genotypes. Magnesium concentration showed the highest range, and the smallest
was recorded for cooper element. Sodium concentration ranges from 21.57 mg/kg
to 90.50 mg/kg, while Al content varies from 2.48 mg/kg to 9.01 mg/kg. The values
of elements P, Ca, Mn, Fe, Zn, and Ni were in the following ranges: 514.50–979.00 mg/
kg, 68.50–181.65 mg/kg, 3.77–6.53 mg/kg, 7.04–18.19 mg/kg, 3.27–6.38 mg/kg,
and 0.014–7.743 mg/kg, respectively.
Rubene and Kuka (2007) studied eight barley grain samples from different
regions of Latvia. According to those authors, the content of phosphorus ranges
from 3.30 to 4.10 g/kg, Ca from 0.50 to 0.62 g/kg, Mg from 1.20 to 1.40 g/kg, Na
from 43.50 to 49.40 mg/kg, Mn from 14.50 to 19.70 mg/kg, Cu from 4.66 to
6.01 mg/kg, Zn from 18.72 to 30.30 mg/kg, and Fe from 66 to 90.88 mg/kg. If we
N. Markova Ruzdik et al.
had two-row. Significant statistical differences were noticed between tested barley
varieties, except between the following genotypes: Hit, Egej, Perun, Orfej, Zagorec,
and Petra. On the other hand, the genotypes Line 1, Rex, and GK Stramm belong to
the same group which means that no statistical difference was recorded. Also, the
genotypes NS 525 and Kuber have similar values for zinc concentration, and they
didn’t differ between them. The genotypes with high value of zinc, after NS 589,
were Odisej and GK Judy (6.05 mg/kg and 6.01 mg/kg, respectively), and they also
didn’t show difference between them.
According to Newman and Newman (2008), the average values for copper, manganese, iron, and zinc content were 4.98 mg/kg, 19.43 mg/kg, 36.0 mg/kg, and
27.7 mg/kg, respectively, and they were much higher compared to the mean values
for the same elements from our research.
The essence of nickel as a micronutrient in plants has been established because
it is part of the active site of the enzyme urease, which hydrolyzes urea in plant tissues (Polacco 1977; Eskew et al. 1984). Nickel (Ni) concentration in barley varieties is given in Table 10.10. Nickel content ranges from 0.014 mg/kg in Univers
variety to 7.743 mg/kg in NS 525 genotype. Significant differences were obtained
between tested barley genotypes, except between Egej and Odisej (both two-row
barley varieties). Also, no statistically significant differences were noticed between
the following genotypes: Devinija, Somborac, and Liliana. The average value for
nickel content in all analyzed barley genotypes was 1.223 mg/kg.
Jâkobsone et al. (2015) investigated the concentration of macro- and trace elements in cereals (rye, barley, wheat, triticale, and oats) cultivated in Latvia.
According to this research, the copper and zinc concentrations were very variable in
barley (1.71–5.9 mg/kg and 16–53 mg/kg, respectively). The content of nickel
(1.088 mg/kg) and sodium concentration (107.4 mg/kg) were the highest in barley
cultivars compared to other cereals. Aluminum was 3.242 mg/kg, cooper 3.607 mg/
kg, calcium 375.6 mg/kg, iron 37.8 mg/kg, magnesium 1157 mg/kg, and zinc
26.4 mg/kg, while the content of manganese (12.4 mg/kg) was the lowest in barley
samples compared to other tested cereals. The data from our research showed that
the concentrations of all tested elements were lower compared to results obtained
from Jâkobsone et al. (2015) study for all elements except for nickel and aluminum.
In Table 10.11 is given basic descriptive statistics for tested elements in barley
genotypes. Magnesium concentration showed the highest range, and the smallest
was recorded for cooper element. Sodium concentration ranges from 21.57 mg/kg
to 90.50 mg/kg, while Al content varies from 2.48 mg/kg to 9.01 mg/kg. The values
of elements P, Ca, Mn, Fe, Zn, and Ni were in the following ranges: 514.50–979.00 mg/
kg, 68.50–181.65 mg/kg, 3.77–6.53 mg/kg, 7.04–18.19 mg/kg, 3.27–6.38 mg/kg,
and 0.014–7.743 mg/kg, respectively.
Rubene and Kuka (2007) studied eight barley grain samples from different
regions of Latvia. According to those authors, the content of phosphorus ranges
from 3.30 to 4.10 g/kg, Ca from 0.50 to 0.62 g/kg, Mg from 1.20 to 1.40 g/kg, Na
from 43.50 to 49.40 mg/kg, Mn from 14.50 to 19.70 mg/kg, Cu from 4.66 to
6.01 mg/kg, Zn from 18.72 to 30.30 mg/kg, and Fe from 66 to 90.88 mg/kg. If we
N. Markova Ruzdik et al.