چکیده
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Barley (Hordeum vulgare) grain stands out among other cereals due to its high nutritional value.
It results mainly from the high content of fiber and antioxidants, such as phenolic compounds. Barley
grains can also be an important source of unsaturated fatty acids and carotenoids that are beneficial
to health. This study assessed the effect of the foliar application of an amino-acid biostimulant on
the content of phenolic compounds, carotenoids, and the composition of fatty acids in the grain of
alternative, black-grain barley genotypes, and the commonly used ‘Soldo’ cultivar, grown in conventional
and organic farming systems. The dark-pigmented grains contained significantly more phenolic acids
and flavonoids than the yellow seed of the traditional cultivar and were characterized by a significantly
higher proportion of unsaturated fatty acids. The application of the biostimulant significantly increased
the concentration of phenolic compounds in grains, especially of alternative genotypes.
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