بررسی تغییرات میزان کلروفیل تحت شرایط تنش شوری در ژنوتیپ گندم طبسی و لاینهای موتانت

Soil and irrigation water salinity are one of the considerable yield determinative agents in dry and semi-arid areas for crops. Identification of tolerant varieties and improvement of plant tolerance are the most effective ways for increasing yield. This experiment aimed on investigating the biochemical mechanisms of salt tolerance in wheat In order to determine the effects of salt stress on amount of a and b chlorophyll in leaves of two genotypes of Triticum aestivum including Tabasi and mutant lines (i.e. T-65-7-1, T-67-60), we performed this experiment in Yoshida in hydroponic method, in factorial and randomized complete design (RCD) with tree replicates. The result implied that a and b chlorophyll accumulation in T-65-7-1, T-67-60 have significant differences in contrast to Tabasi genotype. In the other word, mutant lines which have been under salt stress had more relative tolerance in contrast to Tabasi genotype.