Effects of salinity stress on growth and photosynthetic activity of common basil plants (Ocimum basilicum L.)

The study evaluated basil plants’ response (var. Sweet Green) to increased concentrations of sodium chloride (NaCl) and macro- micronutrients in the medium. following variants were used: ½ Hoagland nutrient solution containing NaCl (0, 80 160 mM) 4/2 with 0 mM NaCl. Biometric physiological parameters measured 20 days after saline application. application caused suppression growth. height plants was decreased by 22% length roots less 60%. Control had 68% greater leaf area than those grown medium Compared control, reduced 43.4% 48.2%, respectively. A single plant’s highest fresh weight found control variant (17.78 g) lowest (5.14 g). negative effect on gas exchange salt-treated found. At same time, no influence salinity content photosynthetic pigments addition into did not affect maximum photochemical efficiency (Fv/Fm) but modified actual activity Photosystem II (PSII). Increasing concentration microelements (4/2 NaCl) a significantly lower growth plants.