Abstract
Rice plants were cultured in the nutrient solution containing 0.5% NaCl by sand culture. And paper chromatography represented free amino acids and amides in the leaves, stems and grains of the rice plants, at the different stages of growth. Distribution of free amino acids and amides was shown in table 2. In the leaves and stems, asparagine, glutamine and threonine were idenified in the chloride excess culture, but absent in the control at the different stages of growth. In the grains, asparagine, glutamine and glycine were observed at the heading stage, but absent or decreased at the mature stage. Serine was identified in the control but absent in the chloride excess culture at these two stages.
