Review: Impact of salinity on physico-chemical properties of plants

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Review Paper 01/01/2021
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Review: Impact of salinity on physico-chemical properties of plants

Zohaib Ahmad, Qaiser Shakeel, Muhammad Rashid Shaheen, Muhammad Samsam Raza, Muhammad Abdulqadir Hassan Kharal, Rizwan Ghafar, Absar-ul-Haq Khalid, Warda Modassar Saddique, Muhammad Farooq Haider
J. Bio. Env. Sci.18( 1), 33-43, January 2021.
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Salinity is a major key issue in an agricultural system that is caused by poor agricultural practices. Salt stress has adverse effects on biomass production and the yield of the crops. The yield of cash crops is mostly affected by salt stress. Wheat and other vegetable crops that are an important part of our daily food are severely affected by salt stress. The gross production of these significant crops is decreased due to the high level of salt stress. Salt stress is responsible for decreasing the number of leaves per plant and the leaf area is adversely affected due to salinity as well. Photosynthetic pigments are also severely decreased due to salt stress. Inorganic ions are also affected due to salinity like the concentration of sodium (Na+) and chloride (Cl¯) ion increased under salt stress. While the concentration of potassium (k) and calcium Ca2+ is decreased. Salt stress also alters the physiology of the plants. In the biochemical process, malondialdehyde (MDA), hydrogen peroxide (H2O2), phenolics, catalase (CAT), peroxidase (POD), superoxide dismutase (SOD) and ascorbic acid are significantly elevated while glycine betaine (GB), leaf-free proline and total soluble proteins are decreased. Salinity affects the plant from germination to till its death. It is one of the important problems of abiotic stress that decreases the yield of agricultural commodities. It is a matter of immense to develop strategies to compete with this issue. Otherwise, severe yield losses have occurred and we may face the food shortage issue due to salinity.


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