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ABSTRACT
Salinity as a major abiotic stresses is one of the main challenges in world’s agricultural productions. The aim of this work was to study the effect of salinity on growth parameter and these ratio ionics responses of three cultivars pistachio. The experiment was arranged in a randomized complete block design consisting of a 3 × 4 factorial combination of three pistachio cultivars (Akbari, Aghaei, and Kalle-Ghuchi) and four salinity levels (1, 5, 10, and 15 dS/m sodium chloride) with three replications. The results showed that the Aghaei cultivars having a high ratio of potassium (K)/sodium (Na) and maintain this ratio at different levels of salinity and Akbari cultivars is sensitive to salinity because of the less ratio of K/Na.