Hydrogen peroxide in the mitigation of salt stress in bell pepper

Detalhes bibliográficos
Autor(a) principal: Aragão, Jéssica
Data de Publicação: 2023
Outros Autores: Lima, Geovani Soares de, Lima, Vera Lucia Antunes de, Silva, André Alisson Rodrigues da, Santos, Larissa Fernanda Sousa, Dias, Mirandy dos Santos, Arruda, Thiago Filipe de Lima, Souza, Allesson Ramos de, Soares , Lauriane Almeida dos Anjos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/47008
Resumo: Bell pepper is a vegetable of great socioeconomic importance in the Brazilian market. However, in the semi-arid region of northeast Brazil, its cultivation is limited by the high concentrations of salts in water sources. On this basis, this study was developed to determine the effect of foliar application of hydrogen peroxide in mitigating salt stress by evaluating gas exchange, photosynthetic pigments, and growth in 'All Big' bell pepper plants. The experiment was conducted in greenhouse conditions in Campina Grande - PB, Brazil. Treatments were distributed in a randomized block design with a 5 × 5 factorial arrangement corresponding to five levels of irrigation-water electrical conductivity (ECw: 0.8, 1.2, 2.0, 2.6, and 3.2 dS m-1) and five concentrations of hydrogen peroxide (H2O2: 0, 15, 30, 45, and 60 µM), with three replicates and one plant per plot. Foliar application of hydrogen peroxide at the concentration of 15 µM attenuated the effects of salt stress in 'All Big' bell pepper plants irrigated with saline water at ECw of up to 1.4 dS m-1. Hydrogen peroxide at a concentration of 15 µM associated with water salinity of 0.8 dS m-1 increased stomatal conductance, CO2 assimilation rate, instantaneous carboxylation efficiency, and the growth of the bell pepper plants. Application of hydrogen peroxide at concentrations greater than 15 µM intensified the deleterious effects of salt stress in 'All big' bell pepper at 90 days after sowing.
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spelling Hydrogen peroxide in the mitigation of salt stress in bell pepperPeróxido de hidrogênio na mitigação do estresse salino em pimentão AclimataçãoCapsicum annuum L. Salinidade.AcclimatizationCapsicum annuum L. Salinity.Bell pepper is a vegetable of great socioeconomic importance in the Brazilian market. However, in the semi-arid region of northeast Brazil, its cultivation is limited by the high concentrations of salts in water sources. On this basis, this study was developed to determine the effect of foliar application of hydrogen peroxide in mitigating salt stress by evaluating gas exchange, photosynthetic pigments, and growth in 'All Big' bell pepper plants. The experiment was conducted in greenhouse conditions in Campina Grande - PB, Brazil. Treatments were distributed in a randomized block design with a 5 × 5 factorial arrangement corresponding to five levels of irrigation-water electrical conductivity (ECw: 0.8, 1.2, 2.0, 2.6, and 3.2 dS m-1) and five concentrations of hydrogen peroxide (H2O2: 0, 15, 30, 45, and 60 µM), with three replicates and one plant per plot. Foliar application of hydrogen peroxide at the concentration of 15 µM attenuated the effects of salt stress in 'All Big' bell pepper plants irrigated with saline water at ECw of up to 1.4 dS m-1. Hydrogen peroxide at a concentration of 15 µM associated with water salinity of 0.8 dS m-1 increased stomatal conductance, CO2 assimilation rate, instantaneous carboxylation efficiency, and the growth of the bell pepper plants. Application of hydrogen peroxide at concentrations greater than 15 µM intensified the deleterious effects of salt stress in 'All big' bell pepper at 90 days after sowing.O pimentão é uma hortícola de grande importância socioeconômica no mercado brasileiro. Contudo, no semiárido do Nordeste brasileiro seu cultivo é limitado devido a ocorrência de fontes hídricas com elevadas concentrações de sais. Deste modo, objetivou-se com o presente estudo, avaliar o efeito da aplicação foliar de peróxido de hidrogênio na mitigação do estresse salino nas trocas gasosas, nos pigmentos fotossintéticos e no crescimento das plantas de pimentão ‘All Big’. O experimento foi conduzido em condições de casa de vegetação, em Campina Grande-PB. Os tratamentos foram distribuídos no delineamento de blocos casualizados, em esquema fatorial 5 × 5, correspondendo a cinco níveis de condutividade elétrica da água de irrigação – CEa (0,8; 1,2; 2,0; 2,6 e 3,2 dS m-1) e cinco concentrações de peróxido de hidrogênio – H2O2 (0, 15, 30, 45 e 60 µM), com três repetições e uma planta por parcela. A aplicação foliar de peróxido de hidrogênio na concentração de 15 µM atenuou os efeitos do estresse salino em plantas de pimentão ‘All Big’ irrigadas com águas salinas em CEa de até 1,4 dS m-1. O peróxido de hidrogênio na concentração de 15 µM associado à salinidade da água de 0,8 dS m-1 proporcionou aumento na condutância estomática, na taxa de assimilação de CO2, na eficiência instantânea de carboxilação e no crescimento das plantas de pimentão. Aplicação de peróxido de hidrogênio em concentrações maiores que 15 µM, intensificou os efeitos deletérios do estresse salino em pimentão ‘All big’, aos 90 dias após o semeio.UEL2023-03-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4700810.5433/1679-0359.2023v44n1p217Semina: Ciências Agrárias; Vol. 44 No. 1 (2023); 217-236Semina: Ciências Agrárias; v. 44 n. 1 (2023); 217-2361679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/47008/48560Copyright (c) 2023 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessAragão, JéssicaLima, Geovani Soares de Lima, Vera Lucia Antunes de Silva, André Alisson Rodrigues daSantos, Larissa Fernanda Sousa Dias, Mirandy dos SantosArruda, Thiago Filipe de Lima Souza, Allesson Ramos de Soares , Lauriane Almeida dos Anjos2023-09-29T13:43:00Zoai:ojs.pkp.sfu.ca:article/47008Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-09-29T13:43Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Hydrogen peroxide in the mitigation of salt stress in bell pepper
Peróxido de hidrogênio na mitigação do estresse salino em pimentão
title Hydrogen peroxide in the mitigation of salt stress in bell pepper
spellingShingle Hydrogen peroxide in the mitigation of salt stress in bell pepper
Aragão, Jéssica
Aclimatação
Capsicum annuum L.
Salinidade.
Acclimatization
Capsicum annuum L.
Salinity.
title_short Hydrogen peroxide in the mitigation of salt stress in bell pepper
title_full Hydrogen peroxide in the mitigation of salt stress in bell pepper
title_fullStr Hydrogen peroxide in the mitigation of salt stress in bell pepper
title_full_unstemmed Hydrogen peroxide in the mitigation of salt stress in bell pepper
title_sort Hydrogen peroxide in the mitigation of salt stress in bell pepper
author Aragão, Jéssica
author_facet Aragão, Jéssica
Lima, Geovani Soares de
Lima, Vera Lucia Antunes de
Silva, André Alisson Rodrigues da
Santos, Larissa Fernanda Sousa
Dias, Mirandy dos Santos
Arruda, Thiago Filipe de Lima
Souza, Allesson Ramos de
Soares , Lauriane Almeida dos Anjos
author_role author
author2 Lima, Geovani Soares de
Lima, Vera Lucia Antunes de
Silva, André Alisson Rodrigues da
Santos, Larissa Fernanda Sousa
Dias, Mirandy dos Santos
Arruda, Thiago Filipe de Lima
Souza, Allesson Ramos de
Soares , Lauriane Almeida dos Anjos
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Aragão, Jéssica
Lima, Geovani Soares de
Lima, Vera Lucia Antunes de
Silva, André Alisson Rodrigues da
Santos, Larissa Fernanda Sousa
Dias, Mirandy dos Santos
Arruda, Thiago Filipe de Lima
Souza, Allesson Ramos de
Soares , Lauriane Almeida dos Anjos
dc.subject.por.fl_str_mv Aclimatação
Capsicum annuum L.
Salinidade.
Acclimatization
Capsicum annuum L.
Salinity.
topic Aclimatação
Capsicum annuum L.
Salinidade.
Acclimatization
Capsicum annuum L.
Salinity.
description Bell pepper is a vegetable of great socioeconomic importance in the Brazilian market. However, in the semi-arid region of northeast Brazil, its cultivation is limited by the high concentrations of salts in water sources. On this basis, this study was developed to determine the effect of foliar application of hydrogen peroxide in mitigating salt stress by evaluating gas exchange, photosynthetic pigments, and growth in 'All Big' bell pepper plants. The experiment was conducted in greenhouse conditions in Campina Grande - PB, Brazil. Treatments were distributed in a randomized block design with a 5 × 5 factorial arrangement corresponding to five levels of irrigation-water electrical conductivity (ECw: 0.8, 1.2, 2.0, 2.6, and 3.2 dS m-1) and five concentrations of hydrogen peroxide (H2O2: 0, 15, 30, 45, and 60 µM), with three replicates and one plant per plot. Foliar application of hydrogen peroxide at the concentration of 15 µM attenuated the effects of salt stress in 'All Big' bell pepper plants irrigated with saline water at ECw of up to 1.4 dS m-1. Hydrogen peroxide at a concentration of 15 µM associated with water salinity of 0.8 dS m-1 increased stomatal conductance, CO2 assimilation rate, instantaneous carboxylation efficiency, and the growth of the bell pepper plants. Application of hydrogen peroxide at concentrations greater than 15 µM intensified the deleterious effects of salt stress in 'All big' bell pepper at 90 days after sowing.
publishDate 2023
dc.date.none.fl_str_mv 2023-03-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/47008
10.5433/1679-0359.2023v44n1p217
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/47008
identifier_str_mv 10.5433/1679-0359.2023v44n1p217
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/47008/48560
dc.rights.driver.fl_str_mv Copyright (c) 2023 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2023 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 44 No. 1 (2023); 217-236
Semina: Ciências Agrárias; v. 44 n. 1 (2023); 217-236
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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