Experimental analysis shows calcium and magnesium improve physio-hormonal attributes under drought stress in trigonella foenum-graecum, indicating potential for stress resistance.
Drought stress is one of the abiotic stresses thatadversely affect the plant growth parameters and physio-hormonal attributes. In the current work,we study the adverse effects of induced PEG drought stress in Trigonella foenum-graecum L. in the presence of calcium and magnesium concentration. The experiment was conducted in the botanical garden of Abdul Wali Khan University Mardan in a completelyrandom design. There are eight treatments and one control having each of the treesreplicated. The nutrients ofcalcium and magnesium ratio (4, 2, and 0.18) were added to the plant after 30 days addingthe polyethylene glycol of concentration of (0.6 Mpa and 0.2 MPa) for 8 days. The results show that drought stress induced by PEG had a significant effect on the growth and physio-hormonal indices of the plant. It was found that calcium and magnesium bothreduce the adverse effects of polyethylene glycol. All treatments helped ascorbic acid, salicylic acid,and auxins to give plant possible growth and development in due time reducing the effects of PEG. Similarly in enzymatic activities, the maximum lipid peroxidase contents at p >0.05 are found in calcium and magnesium ratio 0.18 and polyethylene glycol 0.2 Mpa. The maximum ascorbic acid peroxidase was found at p>0.05in Ca/Mg ratio 4. It is concluded from the study that the calcium and magnesium ratio mitigated the adverse effects of polyethylene glycol on Trigonella foenum-graecum L. growth by promoting hormones and enzymatic activities under PEG-induced drought stress.
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Yar et al. (2025) studied this question.
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