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Effect of salicylic acid on physiological parameters of wheat under zinc or copper deficiency

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Abstract

The effect of salicylic acid (SA) on some physiological parameters was investigated in spring wheat (Triticum aestivum L.) cv. Zlata under zinc (Zn) or copper (Cu) deficiency. Two types of SA applications were used: pre-sowing seeds priming by SA (10 µM) and foliar application by SA (100 µM) in tillering phase of wheat development. The seeds priming by SA under Zn or Cu deficiency caused an increase in stomatal conductance, photosynthesis rate and water content (WC) in roots of wheat. The foliar application by SA leads to an increase in photosynthetic pigments, chlorophyll а/b proportion and chlorophyll content in light harvesting complex II (LHCII) as well as a photosynthesis rate in wheat under trace elements deficiency. Under Zn deficiency the both SA applications resulted in an increase in WC of roots whereas at Cu deficiency SA applications promoted this parameter in shoots. Also, both SA applications (seeds priming and foliar application) caused a higher microelements (Zn and Cu) accumulation in wheat compared with untreated plants. The both SA applications positively affected on shoots height and dry weight of wheat under exposure to Zn or Cu deficiency. According to described above, the SA application is able to increase in tolerance and productivity of wheat under the microelements (Zn or Cu) deficiency in the soil.

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Funding

This work was supported by Russian Science Foundation (grant number 22-26-00168, https://rscf.ru/project/22-26-00168/).

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Correspondence to Natalia Kaznina.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Kaznina, N., Repkina, N., Ignatenko, A. et al. Effect of salicylic acid on physiological parameters of wheat under zinc or copper deficiency. Vegetos (2023). https://doi.org/10.1007/s42535-023-00687-1

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  • DOI: https://doi.org/10.1007/s42535-023-00687-1

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