Vitamins are considered as the accessory nutrients, required in minute quantities. Most
of the vitamins are involved in enzyme systems. Vitamin contents of plants are also known to show
altered metabolism under the influence of salinity. Not much of work has been done on the
influence of salinity on the vitamin content in higher plants. Present study was carried out to study
the influence of NaCl salinity on vitamin content in the leaves of Amaranthus polygamous. The β-
carotene, a precursor of vitamin A, thiamine, riboflavin and ascorbic acid content were found to
decrease gradually with increase in the concentrations of NaCl.