AMINO ACID CONTENTS IN GRAINS OF DIFFERENT WINTER WHEAT (Triticum aestivum L.) VARIETIES

In this investigation 6 divergent lines of winter wheat were analyzed by using method of chromatography for identification of presence of free amino acids. The method of spectrophotometry was used for establishing concentration of identified amino acids. Analysis of quantity of free amino acid indicated theirs high concentration (over the 100 mg/ml) in wheat KG-6, KG-3008-1, KG-3597 and, KG-3/7-93 and in wheat lines KG-1 (over 90 mg/ml). By using chromatography in wheat grain established that tryptophan, valine, norvaline, threonine, proline and glutamic acid were the most prevalent among free amino acids:. Analysis of content of single amino acid in wheat grains showed that concentration of glutamic acid was the highest in KG-3008-1 (8.75 mg/ml). The essential amino acids: valine, threonine present in ratio of concentration from 1.0 to 2.0 mg/ml. Presence of sarcozin, norvalin and tryptophan in KG-3597 wheat line was in low concentration i.e. in traces.