Selection of wheat (Triticum aestivum L.) genotypes under salt stress condition

Wheat is a moderately tolerant plant to salinity stress, but its genotypes have difference in tolerance range in saline circumstance. In order to evaluate of breed wheat (Triticum aestivum L.) genotypes under saline and normal conditions, an experiment was conducted in 2004 in Golestan agriculture research center. In this research 25 genotypes were evaluated in lab and farm. In lab phase, germination test was arranged in randomized complete block design with three replication in two environments (saline by NaCl with 10dS/m and distilled water with 0 dS/m) and some seed and seedling characteristica as well as root and shoot length, root and shoot dry weight, germination percent were evaluated. In filed experiment seed yield, Cl-, Na+and K+ ions accumulation were measured and some parameters were consist of Stress Tolerance Index (STI), Sensitive Index (SSI) and TOL were calculated. Results indicated that there were significant difference in germination traits among genotype (P<0.05). It was shown that STI is the best parameters for tolerance in genotype selection. IAS58/4/KAL/BB//CJ71/3/ALD/5/CNR/6/BAU/7/BAU/8/BR23/PF, TNMU/SKAUZ SITE/ORL-9127 PRINIA//LIRA/TAN, OPATA85//VEE#5"S"/SARA, TAJAN genotypes have higher tolerance in saline condition and then it could be selected as superior genotypes.