İki Zinnia Türünün Yapraklarında Tuzluluğun Antioksidan Enzim Aktiviteleri, Lipid Peroksidasyonu ve H2O2 Düzeyleri Üzerine Etkilerinin Karşılaştırılması

In this study, it was aimed to investigate the effects of salinity, which is an important environmental problem, in cultivation ornamental plants (such as zinnia) and irrigation with high salt water, especially on antioxidant defense mechanism. For purpose, two Zinnia species were irrigated by different concentrations saline water (50, 100, 150, 200 mM NaCl); salinity superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) lipid peroxidation (MDA) hydrogen peroxide (H2O2) leaves determined. The results showed that conspicuously increased SOD, CAT, GR, H2O2 MDA content at compared control groups. It found SOD CAT enzyme activities remarkably 150 NaCl both species, but decreased NaCl.The highest GR activity observed 200mM concentration marylandica ‘Double Zahara Fire Improved’. levels higher elegans ‘Zinnita Scarlet’.To conclude; may be said these varieties can tolerate up mM.