TY - JOUR TI - Benchmarking of the Effects of Salinity on Antioxidant Enzymes Activities, Lipid Peroxidation and H2O2 Levels in the Leaves of Two Zinnia Species AB - In this study, it was aimed to investigate the effects of salinity, whichis an important environmental problem, in the cultivation ofornamental plants (such as zinnia) and irrigation with high saltwater, especially on the antioxidant defense mechanism. For thispurpose, the two Zinnia species were irrigated by differentconcentrations of saline water (50, 100, 150, 200 mM NaCl); effects ofsalinity on superoxide dismutase (SOD), catalase (CAT), glutathionereductase (GR) lipid peroxidation (MDA) and hydrogen peroxide(H2O2) in the leaves were determined. The results showed that salinityconspicuously increased SOD, CAT, GR, H2O2 and MDA content attwo Zinnia species compared to the control groups. It was found thatSOD and CAT enzyme activities increased remarkably with 150 mMNaCl in both Zinnia species, but decreased with 200 mMNaCl.The highest GR enzyme activity was observed in 200mM saltconcentration at Zinnia marylandica ‘Double Zahara Fire Improved’.MDA and H2O2 levels were observed higher in Zinnia elegans ‘ZinnitaScarlet’.To conclude; it may be said that these two Zinnia varieties cantolerate salt concentration up to 150 mM. AU - Guzel Deger, Aysin AU - Koksal, Nezihe AU - Çevik, Sertan AU - yasemin, sara DO - 10.18016/ksutarimdoga.vi.741890 PY - 2021 JO - Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi VL - 24 IS - 1 SN - 2619-9149 SP - 31 EP - 39 DB - TRDizin UR - http://search/yayin/detay/418678 ER -