S. F. Al-jughaify, A., Sh. J. Alobaidy, B. (2024). RESPONSE TO SOME TOLERANCE STANDARDS OF SALINITY STRESS TO ADAPT THE SEEDS OF WHEAT VARIETIES WITH SALTY WATER AND GROWTH REGULATORS. , 22(1), 331-342. doi: 10.32649/ajas.2024.183733
A. S. F. Al-jughaify; B. Sh. J. Alobaidy. "RESPONSE TO SOME TOLERANCE STANDARDS OF SALINITY STRESS TO ADAPT THE SEEDS OF WHEAT VARIETIES WITH SALTY WATER AND GROWTH REGULATORS". , 22, 1, 2024, 331-342. doi: 10.32649/ajas.2024.183733
S. F. Al-jughaify, A., Sh. J. Alobaidy, B. (2024). 'RESPONSE TO SOME TOLERANCE STANDARDS OF SALINITY STRESS TO ADAPT THE SEEDS OF WHEAT VARIETIES WITH SALTY WATER AND GROWTH REGULATORS', , 22(1), pp. 331-342. doi: 10.32649/ajas.2024.183733
S. F. Al-jughaify, A., Sh. J. Alobaidy, B. RESPONSE TO SOME TOLERANCE STANDARDS OF SALINITY STRESS TO ADAPT THE SEEDS OF WHEAT VARIETIES WITH SALTY WATER AND GROWTH REGULATORS. , 2024; 22(1): 331-342. doi: 10.32649/ajas.2024.183733

RESPONSE TO SOME TOLERANCE STANDARDS OF SALINITY STRESS TO ADAPT THE SEEDS OF WHEAT VARIETIES WITH SALTY WATER AND GROWTH REGULATORS

Anbar Journal of Agricultural Sciences
Volume 22, Issue 1, June 2024, Pages 331-342    PDF (504.48 K)
Document Type: Research Paper
DOI: 10.32649/ajas.2024.183733
Authors
A. S. F. Al-jughaify1; B. Sh. J. Alobaidy2
1Department of field crops, College of Agriculture, University of Anbar, Ramadi, Iraq
2Department of Field Crops, College of Agriculture, University of Anbar
Abstract
Salinity is a significant environmental factor that prevents plant germination and growth, thus affecting agricultural productivity globally. Plant growth regulators, such as 6-benzylaminopurine, gibberellin, and melatonin, have been studied for their ability to mitigate the adverse effects of salt stress on wheat, a salt-tolerant staple crop cultivated worldwide. A field experiment was conducted before planting, involving three wheat varieties (Al-Ezz, Dijlah, and Al-Rasheed) subjected to different seed treatment combinations (salt tempering as control, salt tempering + benzyl stimulation, salt tempering + gibberellin stimulation, and salt tempering + melatonin stimulation), all irrigated with saline well water (6 ds m-2) except for the control group irrigated with river water. The findings highlighted the superior performance of the Al-Rasheed variety, exhibiting the highest levels of chlorophyll, relative water content, peroxidase enzyme, and catalase activity (1.993 mg g-1, 83.51%, 40.09 units ml-1, 34.54 units ml-1, respectively). The combination of salt-adaptation treatment and benzyl stimulation resulted in the highest chlorophyll content (2.117 mg g-1), while salt-adaptation treatment and melatonin stimulation showed the highest peroxidase and catalase activity (47.46 units ml-1, 42.71 units ml-1), along with increased grain yield (58.34 g) and harvest index (48.43%). Melatonin and benzylaminopurine have demonstrated potential in alleviating salt stress in plants by influencing various physiological traits.
Keywords
Wheat; Seed priming; Salinity stress; Growth regulators; Antioxidant enzyme
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