Institute of Botany, ANAS
High yielding genotypes of Triticum durum Desf. (Barakatli-95 and Garagylchyg-2) and
Triticum avestivum L. (Azamatly-95 and Giymatly-2-17) were grown in the laboratory conditions at
different concentrations (0; 50; 100 and 200 mM) of NaCl. The growth of seedling and photochemical
activity of photosystem II (PSII) in leaves were evaluated depending on the concentration of salt in the
growth medium. At 100 mM concentration of the salt 40-60% less growth was observed in 10 day old
seedlings of all studied genotypes compared with control plants germinated in distilled water. The
photochemical activity of PSII also declined with the increasing salt concentration. At 200 mM
concentration of NaCl in 10 day old seedlings of all studied genotypes photochemical activity was
reduced 6-8% compared with control plants.
Key words:Wheat genotypes, salt stress, photosynthesis, chlorophyll fluorescence
