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Present research work was conducted to alleviate the salinity‐induced harmful effect on biomass production and physiochemical attributes of fenugreek by foliar application of salicylic acid. Two varieties (Deli Kabul and Kasuri) were grown in salt treated (100 mM NaCl) and untreated (0 mM NaCl) growth medium. Two levels of salicylic acid (0 mg L⁻¹ and 100 mg L⁻¹) were applied through foliar method. Salinity stress significantly reduced the growth biomass in both varieties. Higher shoot fresh weight was recorded in Deli Kabul, while lower in Kasuri. Such reduction in growth biomass was mitigated by the foliar application of SA in both plants. Salinity caused a marked reduction in gas exchange attributes including net CO₂ assimilation rate, transpiration rate, stomatal conductance, and substomatal CO₂ concentration. Exogenous applied salicylic acid also overcomes the reduction in gas exchange …