Effects of irrigation with desalinated seawater and hydroponic system on tomato quality

The use of desalinated seawater (DSW) as an alternative to conventional water resources is gradually gaining more interest due to the strong water deficit and increasing pressure on water resources in semi-arid regions. Furthermore, the combination of this alternative irrigation with the hydroponic...

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Authors: Antolinos López, Vera, Sánchez Martínez, María José, Maestre Valero, José Francisco, López Gómez, Antonio, Martínez Hernández, Ginés Benito
Format: article
Status:Published version
Publication Date:2020
Country:España
Institution:Universidad Politécnica de Cartagena(UPCT)
Repository:Repositorio Digital UPCT
OAI Identifier:oai:repositorio.upct.es:10317/9739
Online Access:http://hdl.handle.net/10317/9739
https://www.mdpi.com/2073-4441/12/2/518
Access Level:Open access
Keyword:Electrical conductivity
Lycopene
Vitamin C
Phenolic compounds
Antioxidant
5102.01 Agricultura
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oai_identifier_str oai:repositorio.upct.es:10317/9739
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repository_id_str
spelling Effects of irrigation with desalinated seawater and hydroponic system on tomato qualityAntolinos López, VeraSánchez Martínez, María JoséMaestre Valero, José FranciscoLópez Gómez, AntonioMartínez Hernández, Ginés BenitoElectrical conductivityLycopeneVitamin CPhenolic compoundsAntioxidant5102.01 AgriculturaThe use of desalinated seawater (DSW) as an alternative to conventional water resources is gradually gaining more interest due to the strong water deficit and increasing pressure on water resources in semi-arid regions. Furthermore, the combination of this alternative irrigation with the hydroponic cultivation system would allow continuous production almost through the whole year and hydroponic-related high crop yield. Nevertheless, the e_ects of DSW irrigation in hydroponic systems on the product quality need to be firstly studied to avoid product quality losses. In this study, we evaluated the e_ects on the quality of two tomato cvs. (Ramyle and Racymo) of three di_erent irrigation treatments (T1, DSW; T2, DSW/well water mix; and T3, well water) under hydroponic or traditional cultivation systems. The soluble solid content of samples (highly correlated to dry matter content) grown under hydroponic conditions and T3 irrigation showed the highest values (5.8 _Brix) although such di_erences (<0.6 _Brix) with T1 might not be sensorially appreciated. Similarly, although T3 samples showed higher acidity than T1 samples, such di_erences (0.06%) would be not appreciated by the consumer. Tomatoes grown in hydroponic conditions had 1.1–1.2-fold higher firmness than conventional soil conditions showing hydroponic T3 samples had the highest value (21–23 N). Tomato cv. Racymo displayed higher color index (chroma) than cv. Ramyle, registering hydroponic T1 samples the most intense red color correlated with the highest lycopene content of 41.1 mg/kg. T1 irrigation of tomatoes cv. Ramyle did not induce significant changes while di_erences lower than 10% were observed in the tomato cv. Racymo. The highest total antioxidant capacity, which was highly correlated to the total phenolic content (R2 = 0.80), was found for hydroponic T1 samples with 1637/1243 _mol/kg for the tomato cvs. Ramyle/Racymo. Conclusively, the use of DSW would not compromise the consumer acceptance of tomatoes due to the low (not appreciable) quality di_erences, with even the total antioxidant capacity of these samples being increased. Furthermore, the mix of DSW with conventional water resources (lower cost) would not compromise the tomato quality.This study was funded by the LIFE Program of the European Union through the DESEACROP project (LIFE16-ENV-ES-000341).MDPIUnión Europea202120212020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://hdl.handle.net/10317/9739https://www.mdpi.com/2073-4441/12/2/518reponame:Repositorio Digital UPCTinstname:Universidad Politécnica de Cartagena(UPCT)InglésLIFE16 ENV/ES/000341Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.upct.es:10317/97392026-05-15T06:39:02Z
dc.title.none.fl_str_mv Effects of irrigation with desalinated seawater and hydroponic system on tomato quality
title Effects of irrigation with desalinated seawater and hydroponic system on tomato quality
spellingShingle Effects of irrigation with desalinated seawater and hydroponic system on tomato quality
Antolinos López, Vera
Electrical conductivity
Lycopene
Vitamin C
Phenolic compounds
Antioxidant
5102.01 Agricultura
title_short Effects of irrigation with desalinated seawater and hydroponic system on tomato quality
title_full Effects of irrigation with desalinated seawater and hydroponic system on tomato quality
title_fullStr Effects of irrigation with desalinated seawater and hydroponic system on tomato quality
title_full_unstemmed Effects of irrigation with desalinated seawater and hydroponic system on tomato quality
title_sort Effects of irrigation with desalinated seawater and hydroponic system on tomato quality
dc.creator.none.fl_str_mv Antolinos López, Vera
Sánchez Martínez, María José
Maestre Valero, José Francisco
López Gómez, Antonio
Martínez Hernández, Ginés Benito
author Antolinos López, Vera
author_facet Antolinos López, Vera
Sánchez Martínez, María José
Maestre Valero, José Francisco
López Gómez, Antonio
Martínez Hernández, Ginés Benito
author_role author
author2 Sánchez Martínez, María José
Maestre Valero, José Francisco
López Gómez, Antonio
Martínez Hernández, Ginés Benito
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Unión Europea
dc.subject.none.fl_str_mv Electrical conductivity
Lycopene
Vitamin C
Phenolic compounds
Antioxidant
5102.01 Agricultura
topic Electrical conductivity
Lycopene
Vitamin C
Phenolic compounds
Antioxidant
5102.01 Agricultura
description The use of desalinated seawater (DSW) as an alternative to conventional water resources is gradually gaining more interest due to the strong water deficit and increasing pressure on water resources in semi-arid regions. Furthermore, the combination of this alternative irrigation with the hydroponic cultivation system would allow continuous production almost through the whole year and hydroponic-related high crop yield. Nevertheless, the e_ects of DSW irrigation in hydroponic systems on the product quality need to be firstly studied to avoid product quality losses. In this study, we evaluated the e_ects on the quality of two tomato cvs. (Ramyle and Racymo) of three di_erent irrigation treatments (T1, DSW; T2, DSW/well water mix; and T3, well water) under hydroponic or traditional cultivation systems. The soluble solid content of samples (highly correlated to dry matter content) grown under hydroponic conditions and T3 irrigation showed the highest values (5.8 _Brix) although such di_erences (<0.6 _Brix) with T1 might not be sensorially appreciated. Similarly, although T3 samples showed higher acidity than T1 samples, such di_erences (0.06%) would be not appreciated by the consumer. Tomatoes grown in hydroponic conditions had 1.1–1.2-fold higher firmness than conventional soil conditions showing hydroponic T3 samples had the highest value (21–23 N). Tomato cv. Racymo displayed higher color index (chroma) than cv. Ramyle, registering hydroponic T1 samples the most intense red color correlated with the highest lycopene content of 41.1 mg/kg. T1 irrigation of tomatoes cv. Ramyle did not induce significant changes while di_erences lower than 10% were observed in the tomato cv. Racymo. The highest total antioxidant capacity, which was highly correlated to the total phenolic content (R2 = 0.80), was found for hydroponic T1 samples with 1637/1243 _mol/kg for the tomato cvs. Ramyle/Racymo. Conclusively, the use of DSW would not compromise the consumer acceptance of tomatoes due to the low (not appreciable) quality di_erences, with even the total antioxidant capacity of these samples being increased. Furthermore, the mix of DSW with conventional water resources (lower cost) would not compromise the tomato quality.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10317/9739
https://www.mdpi.com/2073-4441/12/2/518
url http://hdl.handle.net/10317/9739
https://www.mdpi.com/2073-4441/12/2/518
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv LIFE16 ENV/ES/000341
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositorio Digital UPCT
instname:Universidad Politécnica de Cartagena(UPCT)
instname_str Universidad Politécnica de Cartagena(UPCT)
reponame_str Repositorio Digital UPCT
collection Repositorio Digital UPCT
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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