Salicylic Acid’s Impact on Growth, Photosynthesis, and Antioxidant Enzyme Activity of Triticum aestivum When Exposed to Salt
2022
Pravej Alam | Thamer Al Balawi | Mohammad Faizan
Recently, the application of salicylic acid (SA) for improving a plant&rsquo:s resistance to abiotic stresses has increased. A large part of the irrigated land (2.1% out of 19.5%) is severely affected by salinity stress worldwide. In 2020, total production of wheat (Triticum aestivum) was 761 million tons, representing the second most produced cereal after maize: therefore, research on its salinity tolerance is of world concern. Photosynthetic attributes such as net photosynthetic rate (PN), stomatal conductance (gs), intercellular CO2 concentration (Ci), and transpiration rate (E) were increased significantly by the application of SA. Salt stress increased antioxidant enzyme activity: however, SA further boosted their activity along with proline level. We conclude that SA interacts with meristematic cells, thereby triggering biochemical pathways conductive to the increment in morphological parameters. Further research is required to dissect the mechanisms of SA within the wheat plants under stress.
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