NaCl induced salinity stress showed significant effects on sodium, potassium and calcium content and sodium/ potassium ratio in rice. There was a positive rise of sodium and calcium content whereas potassium content got significantly reduced due to salt treatment. The general trend was same in all the cases, but the quantum of variation differed from cultivar to cultivar. The concentration of sodium and calcium got increased in relation to increase in salt stress and the concentration of potassium and sodium/potassium ratio got reduced in the same pattern. The cultivars show different levels of variations in the case of such responses and these mechanisms make them differentially adapted to salt stress.
