The Evaluation of Tolerance of Six Triticum aestivum Genotypes to Salt Stress
Keywords:Triticum aestivum, Bread wheat, Durum wheat, Salinity tolerance, Salt stress
Soil salinity is one of the most environmental important obstacles facing the productivity and quality of wheat crops, However, the adverse effects of salinity could be mitigated by identifying salinity-tolerant genotypes. Therefore, this study was conducted with an aim of Evaluation of the tolerance of six Acsad wheat genotypes to salt stress, (Acsad 1398, Acsad 1508, and Acsad 1524) of bread wheat, and (Acsad 1595, Acsad 1671, and Acsad 1729) of durum wheat, under five levels of salt treatments (0, 50, 100,150, and 200 NaCl). The results indicate that salinity levels reveal significant (p ≤ 0.05) differences in germination percentage, radical /plumule length, and seedling fresh weight. In addition, there were non significant differences in the average of germination time. As noted genotype the A1508 genotype scored the highest average germination percentage reached (90.6 %), while genotype A1595 was superior to others in an average of radical /plumule length, and seedling fresh weight. Also, the result indicated that 200 mM NaCl of salinity stress was the most toxic for all wheat genotypes included in this study. finally, the results of this study categorize the wheat genotypes into tolerant genotypes include (A1508 and A1595), moderate tolerant genotypes include (A1398) and sensitive genotypes include (A1671, A1524, and A1729).
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