Study the morphological and physiological behavior of two cultivars of barley to salt tolerance using hydroponic teqnique

Abstract

An experiment was carried out in the greenhouse of the department of Biology, College of Education Ibn Al- Haitham, University of Baghdad.The objective was to study the effect of increasing concentration of sodium chloride salt (0,50,100,150,200 mM/L) in some morphological and physiological characteristics of two barley cultivars (Nomar and Arivat) using hydroponic technique. Results indicated that increasing concentration of sodium chloride in growing solution caused a clear reducing in values of dry weight of shoots and roots, leaf area, absolute growth rate and chlorophyll content for both barley cultivars. However there was explicit deferences in the values of this characteristics between the two cultivars due to them salt tolerance ability. Nomar cultivar showed beter behavior under high concentrations of sodium chloride compared with Arivat. It can be concluded that Nomar is able to grow beter than Arivat in the nutrient solution with high salt concentration.