Hydroponic Cultivation of Laranja Cherry Tomatoes under Salt Stress and Foliar Application of Hydrogen Peroxide

Maria Amanda Guedes, André Alisson Rodrigues da Silva, Geovani Soares de Lima (), Hans Raj Gheyi, Lauriane Almeida dos Anjos Soares, Luderlândio de Andrade Silva, Valeska Karolini Nunes Oliveira, Reynaldo Teodoro de Fátima, Reginaldo Gomes Nobre, Jackson Silva Nóbrega, Carlos Alberto Vieira de Azevedo, Saulo Soares da Silva and Josivanda Palmeira Gomes
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Maria Amanda Guedes: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
André Alisson Rodrigues da Silva: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Geovani Soares de Lima: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Hans Raj Gheyi: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Lauriane Almeida dos Anjos Soares: Academic Unit of Agrarian Sciences, Federal University of Campina Grande, Pombal 58840-000, PB, Brazil
Luderlândio de Andrade Silva: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Valeska Karolini Nunes Oliveira: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Reynaldo Teodoro de Fátima: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Reginaldo Gomes Nobre: Department of Science and Technology, Federal Rural University of the Semi-Arid Region, Caraúbas 59780-000, RN, Brazil
Jackson Silva Nóbrega: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Carlos Alberto Vieira de Azevedo: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Saulo Soares da Silva: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil
Josivanda Palmeira Gomes: Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil

Agriculture, 2023, vol. 13, issue 9, 1-15

Abstract: The objective of this study was to evaluate the effect of the foliar application of hydrogen peroxide (H 2 O 2 ) in mitigating the effects of salt stress on cherry tomato cultivation in a hydroponic system. The experiment was conducted in a greenhouse, using a Nutrient Film Technique hydroponic system. The experimental design used was completely randomized in a split-plot scheme, with four levels of electrical conductivity of the nutrient solution—ECns (2.1, 2.8, 3.5, and 4.2 dS m −1 ), considered as plots, and five H 2 O 2 concentrations (0, 12, 24, 36, and 48 µM), regarded as subplots, with four replicates and two plants per plot. An increase in the electrical conductivity of the nutrient solution negatively affected the production components of cherry tomatoes. However, it did not affect the post-harvest quality of the fruits. Despite the reductions observed in the production components due to the increase in the electrical conductivity of the nutrient solution, foliar application of H 2 O 2 at concentrations esteemed between 22 and 25 µM attenuated the deleterious effects of salt stress on the number of fruits and ascorbic acid content and increased the total fruit production per plant of cherry tomatoes.

Keywords: Solanum lycopersicum L.; saline water; hydroponics; antioxidant substance (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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