Amelioration strategy of saline stress in wheat with salicylic acid: a review
Salinity, an adverse abiotic stress, is lowering the productivity of agricultural crops including wheat worldwide. It creates obstacles in normal crop growth and development. Salinity is affecting the morpho-physiology and productivity of wheat. It is also responsible for inducing oxidative, osmotic...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Firenze University Press
2025-03-01
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| Series: | Caryologia |
| Subjects: | |
| Online Access: | https://riviste.fupress.net/index.php/caryologia/article/view/2812 |
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| Summary: | Salinity, an adverse abiotic stress, is lowering the productivity of agricultural crops including wheat worldwide. It creates obstacles in normal crop growth and development. Salinity is affecting the morpho-physiology and productivity of wheat. It is also responsible for inducing oxidative, osmotic and ionic stress (high Na+/K+ ratio), while decreasing the K+ concentrations in plants. Many insights indicate a positive relationship between salicylic acid application and improvement of the morpho-physiological attributes and productivity of wheat both in saline and non-saline conditions. Salinity-induced morphological and physiological alterations have resulted in a drastic decline in wheat yields globally. Morpho-physiological parameters and yield contributing parameters are correlated with each other. Salinity stress reduces the shoot length, shoot fresh mass, root length, root fresh mass, leaf area, leaf fresh weight, number of tillers, shoot dry mass, root dry mass, leaf dry weight, chlorophyll contents (SPAD), leaf relative water content, stomatal conductance, photosynthetic rate, transpiration, CO2 assimilation rate, internal CO2 concentration, spikelets per spike, grain weight per spike, number of grains per spike grain yield, straw yield, biological yield, harvest index in wheat. It also induces autophagy and programmed cell death in wheat. Application of salicylic acid on saline stressed wheat significantly improves all the aforementioned parameters along with maintaining lower Na+ concentrations and a Na+/K+ ratio. Furthermore, salicylic acid alleviates the detrimental effects of salt stress ultimately promoting salt tolerance in wheat. Hence, this paper aims to provide a comprehensive review of major research advances on amelioration of salinity on morpho-physiology and productivity of wheat by the application of salicylic acid.
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| ISSN: | 0008-7114 2165-5391 |