Abstract
Authors dealed with the detection of free amino acids and amides present in various organs of wheat plants, at the earing period, cultured in plots supplied with different sources of nitrogen, by the paper chromatography method. The amino acids found in every organ of plants of every plot were aspartic acid, glutamic acid, serine and alanine, but valine and leucine were found only frequently. Also asparagine and glutamine were found in every part of plants. The physiological role of these amino acids and amides was discussed from the view point of amino acid metabolism.
