Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
Skip to main content

The right combination of N-P-K fertilization may mitigate salt stress in custard apple (Annona squamosa L.)

  • Original Article
  • Published:
Acta Physiologiae Plantarum Aims and scope Submit manuscript

Abstract

Salt stress is the cause of low yield in many arid and semi-arid regions. Strategies to increase crop yields in salt stress conditions are very important, especially in systems with higher production costs, such as irrigated fruticulture. This study proposes to assess the photosynthetic efficiency and growth of Annona squamosa irrigated with saline water under different doses of nitrogen, phosphorus, and potassium fertilization. The assay was conducted in a greenhouse and consisted of two factors, which corresponded to two electrical conductivity of water (ECw) (0.8 and 3.0 dS m−1) and eight combinations of fertilization with nitrogen, phosphorus, and potassium ranging from 100 to 140% of the recommended dose, arranged in a 2 × 8 factorial scheme, with three replicates. Plants were evaluated for growth, chlorophyll a fluorescence, gas exchanges, and production over a period of 1 year. The photosynthetic efficiency in the vegetative stage of A. squamosa plants is the most affected by salt stress. Stomatal closure and damage to the quantum efficiency of photosystem II are the main factors responsible for the reduction of photosynthesis and growth. In the reproductive stage, A. squamosa plants acclimated to salt stress, with no effect of salinity on the photochemical efficiency and stomatal conductance, but the damage to photosynthesis was not reversed and contributed to reducing production. The fertilizer combination C6 (140:100:140% or 56:60:84 g plant−1 year−1 of N:P2O5:K2O) is recommended to mitigate salt stress and increase A. squamosa production.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
$34.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

Download references

Acknowledgements

This research was supported by the National Coordination Committee for Higher Educational Personnel (CAPES)-Financing Code 001, the National Council for the Development of Science and Technology (CNPq) and the National Institute of Science and Technology in Salinity (INCTSal).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Francisco Vanies da Silva Sá.

Ethics declarations

Conflict of interest

The corresponding author declares no conflict of interest on behalf of all authors.

Additional information

Communicated by S. Esposito.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

da Silva Sá, F.V., Gheyi, H.R., de Lima, G.S. et al. The right combination of N-P-K fertilization may mitigate salt stress in custard apple (Annona squamosa L.). Acta Physiol Plant 43, 59 (2021). https://doi.org/10.1007/s11738-021-03225-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s11738-021-03225-1

Keywords