GROWTH AND PHOTOSYNTHETIC EFFICIENCY OF Atriplex nummularia UNDER DIFFERENT SOIL MOISTURE AND SALINE TAILINGS
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
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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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 |
_version_ |
1797674027249041408 |