Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.sjbs.2022.103294 |
Licence  |
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| Title (Primary) | Combined effect of salicylic acid and potassium mitigates drought stress through the modulation of physio-biochemical attributes and key antioxidants in wheat |
| Author | Munsif, F.; Shah, T.; Arif, M.; Jehangir, M.; Afridi, M.Z.; Ahmad, I.; Jan, B.L.; Alansi, S. |
| Source Titel | Saudi Journal of Biological Sciences |
| Year | 2022 |
| Department | BOOEK |
| Volume | 29 |
| Issue | 6 |
| Page From | art. 103294 |
| Language | englisch |
| Topic | T5 Future Landscapes |
| Keywords | Drought stress; Potassium fertilization; Seed priming; Salicylic acid; Foliar spray; Plant pigments |
| Abstract | Improving physio-biochemical traits in wheat under drought stress conditions
has received more research attention in recent years for better adaptability
and higher yield. In this study, we explored the potential bio-physiological
mechanisms underlying improved plant growth and water use efficiency in wheat
following soil application of potassium (0 and 100 kg ha−1)
and seed primed salicylic acid (SA) (150 mg per L) and SA foliar
application (100 mg per L) under drought stresses (100%, 60% and 30% FC).
Two years' average data revealed that inducing drought stress resulted in a
decrease in plant pigments content, growth traits, and plant water status
however, the influence was substantially reduced with the combined application
of K and SA under drought stress conditions. The SA foliar spray in combination
with K had increased chlorophyll a (174% and 83%), chl b (130%
and 192%), chl a + b (156% and 120), carotenoid
(22% and 11%), proline contents (24% and 29%) leaf relative water content (24%
and 29%) while reduced leaf WSD (17% and 20%), WRC (6% and 7%), and WUC (23%
and 28%) under mild and severe drought stresses, respectively. The increase in
grain yield by 41% and 37% with enhanced water use efficiency was obtained with
combined foliar SA and K under mild and severe drought stress, respectively
indicating its vital role in overcoming the deleterious effects of drought via
regulation of osmotic and metabolic processes and stabilizes cell components.
RDA analysis revealed that the studied traits were completely discriminated
under severe stress than mild or no drought stress. A positive and significant
association was found between plant pigments with seed yield whereas a negative
and significant correlation existed between water leaf traits and plant
pigments. It was concluded that both foliar SA and seed primed SA with K
fertilization combat the adverse effects of drought and improved plant water
status as well as growth and bio-physiological traits of wheat under drought
stress conditions.
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| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26429 |
| Munsif, F., Shah, T., Arif, M., Jehangir, M., Afridi, M.Z., Ahmad, I., Jan, B.L., Alansi, S. (2022): Combined effect of salicylic acid and potassium mitigates drought stress through the modulation of physio-biochemical attributes and key antioxidants in wheat Saudi J. Biol. Sci. 29 (6), art. 103294 10.1016/j.sjbs.2022.103294 |
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