PJB-2019-133
Physiological, biochemical, and antioxidant properties of two genotypes of Vicia faba grown under salinity stress
Saud M. Alzahrani, Ibrahim A. Alaraidh, Hussein Migdadi, Salem Alghamdi, Mohammad Altaf Khan and Parvaiz Ahmad
Abstract
The faba bean genotypes Hassawi-3 and ILB-4347 were evaluated under three different NaCl treatments (50 mM, 100 mM, and 150 mM) for growth, physiological parameters, and enzymatic and non-enzymatic antioxidants in leaves. Salinity stress significantly reduced the growth and biomass yield of both genotypes. Calcium (Ca2+), magnesium (Mg2+), and potassium (K+) contents were reduced, whereas sodium content was increased in both genotypes with increasing NaCl concentration. Higher levels of Ca2+, Mg2+, K+, and K+/Na+ ratio, along with lower Na+ accumulation were observed in ILB-4347 than those in the Hassawi-3 genotype. Chlorophyll, carotene, leaf relative water content (LRWC), proline, and protein content were reduced (by 54.61%, 51.51%, 42.33%, 105.19% and 44.80% in Hassawi-3 and 35.29%, 38.29%, 31.92%, 113.93% and 34.80% in ILB-4347) these effects were treatment and genotype dependent. Salinity stress significantly enhanced hydrogen peroxide (H2O2), malondialdehyde (MDA), and electrolyte leakage (EL) in both genotypes; however, Hassawi-3 showed more accumulation compared to ILB-4347. Both genotypes subjected to salt stress showed enhancement in total antioxidants, superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), and ascorbic acid (AsA) content. These results indicate that ILB-4347 is more tolerant than the Hassawi-3 genotype against salt stress and could be used as part of a better strategy to reclaim salt affected soils
To Cite this article:
Alzahrani, S.M., I.A. Alaraidh, H. Migdadi, S. Alghamdi, M.A. Khan and P. Ahmad. 2019. Physiological, biochemical, and antioxidant properties of two genotypes of Vicia faba grown under salinity stress. Pak. J. Bot., 51(3): DOI: http://dx.doi.org/10.30848/PJB2019-3(3)
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