The effects of salinity stress on the growth and some physiological parameters of wheat (Triticum aestivum L.) seedlings

Salinity is one of the major abiotic stresses that adversely affects crop productivity and quality. In this study، an experiment was conducted to investigate the effects of salinity stress on some physiological parameters of wheat seedlings. Plants were subjected to three salt treatment i. e. 0 (control)، 100، 150 mM NaCl under controlled conditions. Results showed that increasing salinity caused significant decrease in shoot and root length and dry weight and leaf area، but in contrast، malondialdehyde (MDA) content and catalase (CAT) and guaiacol peroxidase (GPX) activity were increased. Also، increasing salinity significantly decreased K+ and NO3- and significantly increased Na+ and Cl- content.