Comprehensive raw data supporting the manuscript “Calcium Dominance, Ion Regulation, and Metabolic Defenses Underlie Salt Tolerance in the Halophyte Azima sarmentosa”

Comprehensive raw data supporting the manuscript “Calcium Dominance, Ion Regulation, and Metabolic Defenses Underlie Salt Tolerance in the Halophyte Azima sarmentosa.”The dataset includes:S1 – Soil properties (exchangeable cations, Cl⁻, SAR, ECe, pH, SOC, TON).S2 – Elemental concentrations (K, Na, Ca, Mg, K+/Na+ ratio, Ca2+/Na+ ratio) in stems, mature leaves, young leaves, and total plant tissues.S3 – Elemental weight percentages (C, Ca, Cl, K, Mg, Na, O, S) from SEM–EDX analysis.S4 – Photosynthetic pigments (Chl a, Chl b, total carotenoids).S5 – Osmoprotectants (proline, total soluble sugars).S6 – Antioxidant compounds (total phenolics and flavonoids in acetone and ethanol extracts).S7 – Z-score standardized dataset with correlation and PCA results.