Salicylic Acid as a Salt Stress Mitigator on Chlorophyll Fluorescence, Photosynthetic Pigments, and Growth of Precocious-Dwarf Cashew in the Post-Grafting Phase

Author:

Arruda Thiago Filipe de Lima1ORCID,Lima Geovani Soares de1ORCID,Silva André Alisson Rodrigues da1ORCID,Azevedo Carlos Alberto Vieira de1,Souza Allesson Ramos de1,Soares Lauriane Almeida dos Anjos2,Gheyi Hans Raj1,Lima Vera Lúcia Antunes de1,Fernandes Pedro Dantas1,Silva Francisco de Assis da1,Dias Mirandy dos Santos1,Chaves Lucia Helena Garófalo1,Saboya Luciano Marcelo Fallé1

Affiliation:

1. Post Graduate Program in Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, Brazil

2. Academic Unit of Agrarian Sciences, Federal University of Campina Grande, Pombal 58840-000, Brazil

Abstract

Salicylic acid is a phytohormone that has been used to mitigate the effects of saline stress on plants. In this context, the objective was to evaluate the effect of salicylic acid as a salt stress attenuator on the physiology and growth of precocious-dwarf cashew plants in the post-grafting phase. The study was carried out in a plant nursery using a randomized block design in a 5 × 4 factorial arrangement corresponding to five electrical conductivity levels of irrigation water (0.4, 1.2, 2.0, 2.8, and 3.6 dS m−1) and four salicylic acid concentrations (0, 1.0, 2.0, and 3.0 mM), with three replications. Irrigation water with electrical conductivity levels above 0.4 dS m−1 negatively affected the relative water content in the leaf blade, photosynthetic pigments, the fluorescence of chlorophyll a, and plant growth and increased electrolyte leakage in the leaf blade of precocious-dwarf cashew plants in the absence of salicylic acid. It was verified through the regression analysis that salicylic acid at a concentration of 1.1 mM attenuated the effects of salt stress on the relative water content and electrolyte leakage in the leaf blade, while the concentration of 1.7 mM increased the synthesis of photosynthetic pigments in precocious-dwarf cashew plants.

Funder

Fundação de Apoio à Pesquisa da Paraíba

Universidade Federal de Campina Grande–UFCG-CAPES

Publisher

MDPI AG

Subject

Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics

Reference60 articles.

1. Alocação de fitomassa e crescimento de clones de cajueiro irrigados com águas de diferentes salinidades;Nobre;Rev. Interdiscip. UFT,2020

2. Antioxidant protection of photosynthesis in two cashew progenies under salt stress;Silva;J. Agric. Sci.,2018

3. Caju: O sabor do Nordeste;Farias;Rev. Gastron.,2019

4. (2022, November 12). IBGE—Instituto Brasileiro de Geografia e Estatística, Available online: https://www.ibge.gov.br/explica/producao-agropecuaria/castanha-de-caju-cultivo/br.

5. Potassium fertilization in the cultivation of sour passion fruit under irrigation strategies with brackish water;Pinheiro;Rev. Bras. Eng. Agrícola Ambient.,2023

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