Kosyan A. Optimization of garlic (Allium sativum L.) sulfur nutrition as the way of regulation of accumulation of pharmacologically active substances

Dissertation is dedicated for the studying of the features of garlic's sulfur nutrition. There were received the new data on the basis of which the regularities of alliin's and organic sulfides' (pharmacologically active substances) synthesis and their accumulation in garlic bulbs have been instituted. Garlic variety's peculiarity dependent on sulfur fertilizers feeding and associated with distinctions of its morphology has been instituted. On the basis of the theory regarding possible ways of sulfur reduction in plant organism that was proposed by the author, the complex studying of effect of lipoic acid on photosynthetic reduction of sulfate ions has been carried out. It was shown that treatment of garlic plants with the solution of lipoic acid optimizes the assimilation of sulfur fertilizers what advance the accumulation of alliin and organic sulfides in bulbs.