RESPONSE OF NON-ENZYMATIC ANTIOXIDANTS TO Phragmites australis (Cav.) Trin. ex. Steudel PLANTS OF THE ENVIRONMENTAL STRESSES IN BAHER ALNAJAF, IRAQ

This study included monthly eighteen physico-chemical parameters during the period from February 2015 to June 2015 at 4 sites are selected from Baher Alnajaf, Iraq. The results showed positive correlation between air and water temperature and positive correlation between annual precipitation with (DO, EC, TDS, TSS, SAL, pH, HCO3=, CO3-, Cl-, and SO4=) and negative correlation between annual precipitation with (BOD, PO4=, NO3=). Physico-chemical parameters are found significantly higher in site 2 compared to the other site. Pollutants concentration in spring higher than in winter season, this led to high contents of non-enzymatic antioxidant. Present study indicated that in a stressed ecosystem, the Phragmites australis plants overcome the stress by altering non enzymatic antioxidant activities, hence suggesting an evidence of adaptive mechanism to thrive in a stressful environment (as indicators), and suitability of Phragmites australis plants for altered environmental conditions.