XVI International Botanical Congess

The biochemical indexes like glycerolipids, carotene, xanthophyll content, lipid peroxidation and antioxidative activities were used for characterising plant adaptive peculiarities while high temperature and water deficit action. The comparing of the Egyptian and Ukrainian variety photosynthetic tissue adaptive indexes allows to characterise Egyptian varieties as more resistant. Increase of carotene, lutein, zeaxanthin and violaxanthin content accompanying by the decrease of the peroxidation in lipid-pigment complex in resistant to drought action wheat variety was observed. It was made a conclusion that adaptative reaction determined by genotype, in spite of some differences, displays as the lipid/pigment, lipid/protein relation increase and the accumulation of specific lipids - sulpholipids, galactolipids, phosphatidylglycerols, pigments.