Evaluation of salinity stress on morphophysiological traits of four salin tolarant wheat cultivars

For assessment the effects of salinity on morphophysiological traits of wheat an experiment with four caltivars (Karchia, Sorkh tokhm, Sholeh and Roshan) and one line (1-66-22) in four salt concentrations(0, 60, 120, and 180 mM NaCl), were conducted by factorial analysis in a completely randomized design with three replications. The rate of leaf area were measured in four stages. In booting stage, relative chlorophyll content (SPAD meter), and in pollination phase the rate of Na+ and K+ iones in four leaves(up to down) were assessed and finally stem length and total dry matter were measured. Results showed that salinity reduced leaf area, total dry matter stem length of plants and relative chlorophyll content. With increasing of salinity the rate of Na+ were increased but the rate of K+ iones were decreased. Also the salt exclusion was observed at nodes of stem that of 1-66-22 was spot form.