Evaluating of yield and morphological characters in tolerance and sensitive genotypes to salinity stress in rice

In order to evaluate the interaction of rice genotypes to salinity Stress, responses of 4 rice genotypes were assessed to 4 salinity levels (0, 4, 8, 12, ms/cm) through a split plot experiment in yield stage by CRD in 3 replications in green house plots. In this experiment was carried out 4 genotypes with 4 salt levels (0,4,8,12 ms/cm). Varieties that were used contain: PSBRC88: international salt tolerant, IR58025A/ IR60819R: salt susceptible, Gerdeh and Anbarboo: indigenous varieties. when seedlings were 21 day old, salinity treatments were carried out. characters such as: time of flowering to ripping, plant height, number of effective tiller, main panicle length, length of another panicles, weight of crucible, weight of straw, distance of biggest panicle knot to flag leaf sheath, number of empty and filled grain and total biomass were measured. The salinity had a significant efficient on those characters. Effect of genotype × salt had a significant effect on 8 character with the exception of plant height, number of effective tiller, and length of another panicle. weight of crucible of PSBRC88 and IR58025A/ IR60819R almost was decreased 53 % and 73% to control respectively. Anbarboo after PSBRC88 was selected as a more tolerance variety.