Phosphorus and sodium distributions soybean [Glycine max] plants subjected to salt stress

An understanding of plant-nutrient relationship is essential if the production of soybean in the saline soils of the world is to be made viable. Radiophosphorus (32P) and radiosodium (22Na) were administered to greenhouse-grown soybean plants (average height : 25 cm) cultured in Hoagland solution to investigate the uptake of phosphorus (P) and sodium (Na) as a function of increasing salinity from zero to 120 mM NaCl. P uptake depends on the concentration of inorganic P (Pi) in the nutrient medium. The addition of 8 mM Pi to the saline medium enhanced P accumulation significantly (p