the effects of saliniry on the water potential , proline, Na and K accumulation in main stem leaves of 30 wheat cultivars at awn appereance and 20 day after flioering in a greenhouse experiment was investigated. in 20 DAA salinity stress increased proline proline concentration from 0.4 to 2.95 mg gfw and Na from 1.71 to 19.61 mg/gfw. but decreased water potential from -3.5 to -4.5 bar. the 30 cultivar were sorted on the basis of relative resistance index .
