Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivars

Tarom region of Zanjan province is one the olive production centers in Iran, which faced a crisis salinity stress following salinization water resources. The selection tolerant cultivars using pivotal characteristics interesting challenges. This study was conducted to investigate behavior ‘Zard’, ‘Abou-satl’, and ‘Arbequina’ context marginal waters. Therefore, one-year-old self-rooted plants these were potted irrigated with 2, 5, 8, 12 dS/m saline for three months greenhouse, certain physiological morphological features studied. results show that ‘Zard’ ‘Abou-Satl’ tolerated 8 dS/m, maintained their photosynthesis medium (5 dS/m), grew well conditions. In contrast, cultivar exhibited extreme susceptibility salinity. high salinities, there lower slope increase Na+ concentration leaves cultivar. Also wet dry biomass this decreased much less than others. A more severe reduction transpiration indicated better efficiency retention mechanisms use efficiency. rate affected under stress. They reduced accumulation increased K+ leaves. These two had suitable responses recommended planting regions by