GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS

Detalhes bibliográficos
Autor(a) principal: Oliveira, Aline Sheyla Leal de
Data de Publicação: 2019
Outros Autores: Souza, Eduardo Soares de, Pessoa, Luiz Guilherme Medeiros, Ferreira-Silva, Sérgio Luiz, Souza, Rodolfo Marcondes Silva, Antonino, Antonio Celso Dantas
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/7631
Resumo: The disposal of the tailings (wastes) from desalinators is a growing problem, especially in semi-arid regions, and it is necessary to study halophytes such as Atriplex nummularia for the reuse of these saline waters. Thus, the objective of this study was to evaluate the effect of the interaction between levels of soil water content and salinity of irrigation water, gas exchange and growth of Atriplex nummularia Lindl. The plants were cultivated in vases with soils under two moisture levels (50 and 100% of the field capacity) and irrigated with saline waters from dilution of the desalinator waste, to obtain the following electrical conductivities (EC) of 0.39; 1.54; 2.15; 2.79; and 3.63 dS m-1. The experiment was conducted in a greenhouse for 160 days, with a triple factorial arrangement of 2x5x3, in a randomized complete block design with four replications. The photosynthetic, biometric and plant biomass parameters were evaluated. Irrigation with saline water reduced the net photosynthetic rate (A), stomatal conductance (gs), the effective quantum yield of photosystem II (ΔF/Fm’), photochemical quenching (qP) and the electron transport rate (ETR) of the plants for the two conditions of soil moisture. However, it did not impair the efficiencies of water use (WUE) and carboxylation (EIC) of plants. Plant growth rate and leaf biomass were stimulated under irrigation with saline water (EC ≤ 3.63 dS m-1), and when associated with soil moisture of 100% FC leaf biomass gains > 100% were obtained.
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spelling GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGSCRESCIMENTO E EFICIÊNCIA FOTOSSINTÉTICA DE Atriplex nummularia SOB DIFERENTES UMIDADES DO SOLO E REJEITOS SALINOPhotosynthesis. Halophyte. Water reuse. Salinity.Fotossíntese. Halófita. Reuso de água. Salinidade.The disposal of the tailings (wastes) from desalinators is a growing problem, especially in semi-arid regions, and it is necessary to study halophytes such as Atriplex nummularia for the reuse of these saline waters. Thus, the objective of this study was to evaluate the effect of the interaction between levels of soil water content and salinity of irrigation water, gas exchange and growth of Atriplex nummularia Lindl. The plants were cultivated in vases with soils under two moisture levels (50 and 100% of the field capacity) and irrigated with saline waters from dilution of the desalinator waste, to obtain the following electrical conductivities (EC) of 0.39; 1.54; 2.15; 2.79; and 3.63 dS m-1. The experiment was conducted in a greenhouse for 160 days, with a triple factorial arrangement of 2x5x3, in a randomized complete block design with four replications. The photosynthetic, biometric and plant biomass parameters were evaluated. Irrigation with saline water reduced the net photosynthetic rate (A), stomatal conductance (gs), the effective quantum yield of photosystem II (ΔF/Fm’), photochemical quenching (qP) and the electron transport rate (ETR) of the plants for the two conditions of soil moisture. However, it did not impair the efficiencies of water use (WUE) and carboxylation (EIC) of plants. Plant growth rate and leaf biomass were stimulated under irrigation with saline water (EC ≤ 3.63 dS m-1), and when associated with soil moisture of 100% FC leaf biomass gains > 100% were obtained.O descarte do rejeito dos dessanilizadores é um problema crescente sobretudo nas regiões semiáridas, sendo necessário o estudo de plantas halófitas como a Atriplex nummularia para o reuso dessas águas salinas. Dessa forma, objetivou-se avaliar o efeito da interação entre níveis de teor de água solo e de salinidade da água de irrigação, nas trocas gasosas e no crescimento de Atriplex nummularia Lindl. As plantas foram cultivadas em vasos com solos sob dois níveis de umidade (50 e 100% da capacidade de campo) e irrigadas com águas salinas provenientes de diluição de rejeito de dessalinizador obtendo as seguintes condutividades elétricas (EC) de 0,39; 1,54; 2,15; 2,79; e 3,63 dS m-1. O experimento foi conduzido em casa de vegetação durante 160 dias, com o arranjo fatorial triplo de 2x5x3, em delineamento em blocos ao acaso, com quatro repetições. Foram avaliados os parâmetros fotossintéticos, biométricos e a biomassa das plantas. A irrigação com água salina reduziu a taxa fotossintética líquida (A), a condutância estomática (gs), o rendimento quântico efetivo do fotossistema II (ΔF/Fm’), o quenching fotoquímico (qP) e a taxa de transporte de elétrons (ETR) das plantas para as duas condições de umidade do solo. Contudo, não prejudicou a eficiência do uso de água (WUE) e de carboxilação (EIC) das plantas. A taxa de crescimento das plantas e a biomassa foliar foi estimulada sob irrigação com água salina (EC ≤ 3,63 dS m-1), e quando associada a umidade de solo de 100% FC obteve ganhos de biomassa foliar > 100%.Universidade Federal Rural do Semi-Árido2019-05-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/763110.1590/1983-21252019v32n222rcREVISTA CAATINGA; Vol. 32 No. 2 (2019); 493-505Revista Caatinga; v. 32 n. 2 (2019); 493-5051983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/7631/9965Copyright (c) 2019 Revista Caatingainfo:eu-repo/semantics/openAccessOliveira, Aline Sheyla Leal deSouza, Eduardo Soares dePessoa, Luiz Guilherme MedeirosFerreira-Silva, Sérgio LuizSouza, Rodolfo Marcondes SilvaAntonino, Antonio Celso Dantas2023-07-20T17:18:04Zoai:ojs.periodicos.ufersa.edu.br:article/7631Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:36.094045Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
CRESCIMENTO E EFICIÊNCIA FOTOSSINTÉTICA DE Atriplex nummularia SOB DIFERENTES UMIDADES DO SOLO E REJEITOS SALINO
title GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
spellingShingle GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
Oliveira, Aline Sheyla Leal de
Photosynthesis. Halophyte. Water reuse. Salinity.
Fotossíntese. Halófita. Reuso de água. Salinidade.
title_short GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
title_full GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
title_fullStr GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
title_full_unstemmed GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
title_sort GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
author Oliveira, Aline Sheyla Leal de
author_facet Oliveira, Aline Sheyla Leal de
Souza, Eduardo Soares de
Pessoa, Luiz Guilherme Medeiros
Ferreira-Silva, Sérgio Luiz
Souza, Rodolfo Marcondes Silva
Antonino, Antonio Celso Dantas
author_role author
author2 Souza, Eduardo Soares de
Pessoa, Luiz Guilherme Medeiros
Ferreira-Silva, Sérgio Luiz
Souza, Rodolfo Marcondes Silva
Antonino, Antonio Celso Dantas
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, Aline Sheyla Leal de
Souza, Eduardo Soares de
Pessoa, Luiz Guilherme Medeiros
Ferreira-Silva, Sérgio Luiz
Souza, Rodolfo Marcondes Silva
Antonino, Antonio Celso Dantas
dc.subject.por.fl_str_mv Photosynthesis. Halophyte. Water reuse. Salinity.
Fotossíntese. Halófita. Reuso de água. Salinidade.
topic Photosynthesis. Halophyte. Water reuse. Salinity.
Fotossíntese. Halófita. Reuso de água. Salinidade.
description The disposal of the tailings (wastes) from desalinators is a growing problem, especially in semi-arid regions, and it is necessary to study halophytes such as Atriplex nummularia for the reuse of these saline waters. Thus, the objective of this study was to evaluate the effect of the interaction between levels of soil water content and salinity of irrigation water, gas exchange and growth of Atriplex nummularia Lindl. The plants were cultivated in vases with soils under two moisture levels (50 and 100% of the field capacity) and irrigated with saline waters from dilution of the desalinator waste, to obtain the following electrical conductivities (EC) of 0.39; 1.54; 2.15; 2.79; and 3.63 dS m-1. The experiment was conducted in a greenhouse for 160 days, with a triple factorial arrangement of 2x5x3, in a randomized complete block design with four replications. The photosynthetic, biometric and plant biomass parameters were evaluated. Irrigation with saline water reduced the net photosynthetic rate (A), stomatal conductance (gs), the effective quantum yield of photosystem II (ΔF/Fm’), photochemical quenching (qP) and the electron transport rate (ETR) of the plants for the two conditions of soil moisture. However, it did not impair the efficiencies of water use (WUE) and carboxylation (EIC) of plants. Plant growth rate and leaf biomass were stimulated under irrigation with saline water (EC ≤ 3.63 dS m-1), and when associated with soil moisture of 100% FC leaf biomass gains > 100% were obtained.
publishDate 2019
dc.date.none.fl_str_mv 2019-05-21
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://periodicos.ufersa.edu.br/caatinga/article/view/7631
10.1590/1983-21252019v32n222rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/7631
identifier_str_mv 10.1590/1983-21252019v32n222rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/7631/9965
dc.rights.driver.fl_str_mv Copyright (c) 2019 Revista Caatinga
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Revista Caatinga
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 32 No. 2 (2019); 493-505
Revista Caatinga; v. 32 n. 2 (2019); 493-505
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
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