The Kinetin Role and Compound Fertilizer NPKZn in the Effectiveness of some Antioxidants to Sweet Pepper Capsicum annuum L. subjected to Salt Stress

Abstract

The experiment was carried out in the green house of Biology Department, College of Education for Pure Science/ Ibn AL–Haitham, Baghdad University, during the growing season of 2013- 2014, to study the influence of foliar application of four concentrations of kinetine 25,50,75,100 ppm in addition to the control treatment, appling and non appling of 160 Kg.H^-1of NPKZn fertilizer, and two concentrations of sodium chloride 50,100mM.L^-1 instead of control treatment, and their interactions on Some Antioxidant Enzyme and non-Enzyme of vegetative part of Capscum annum L. The experiment was designed by using Randomized Complete Block Design (RCBD) with three replications. Results indicated that application of sodium chloride  caused a significant increase in the average enzyme activities (Superoxide dismutase, Peroxidase, Catalase) (unite mg protein^-1), vitamin C concentration, proline aced content (mg.L^-1) and Malondialialdehyde content (µM.gm F.W.^-1) compared with the control, on the contrary the spray of the kinetine and aplication of the fertilizer both individually or its interventions led to decrease the injury of sodium chloride and a significant reduction in rates of details mentioned above effect of. The surpass of 75ppm of the kinetine which agave the less mean of characteristics studied and superiority of the treatment (level 160 Kg.H^-1of NPKZn fertilizer and 75ppm of kinetine in giving the best averages of characteristics above.