Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds

Detalhes bibliográficos
Autor(a) principal: Alencar, Ernandes Rodrigues de
Data de Publicação: 2021
Outros Autores: Jojoa, Wilson Anchico, Silva, Karine Noronha, Souza, Nara Oliveira Silva
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/40762
Resumo: Ozonation has been evaluated as an alternative method for seed treatment. In this context, the goal of this study was to evaluate the saturation process and kinetics of decomposition of ozone in a porous medium composed of quinoa BRS Syetetuba and possible changes in seed quality. Ozone concentration and saturation time in the porous medium and half-life were determined by adopting an inlet ozone concentration of 885 ppm and a flow rate of 5.0 L min-1 at 25 °C. The ozonation periods adopted were 0, 30, 60, 90, and 120 min. Regarding the physiological quality of the seeds, the germination percentage, germination speed index, electrical conductivity, and length of the shoot, root, and normal seedlings were analyzed. At the inlet ozone concentration of 885 ppm and a flow rate of 5.0 L min-1, the saturation concentration and saturation time in the porous medium composed of quinoa were 522.5 ppm and 12.0 min, respectively. The half-life of ozone in the porous medium was 6.08 min at 25 °C. Under these conditions, ozonation did not affect the physiological quality of quinoa BRS Syetetuba seeds for up to 120 min.
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spelling Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seedsOzonização de sementes de quinoa (Chenopodium quinoa Willd.): saturação e cinética de decomposição do ozônio e qualidade fisiológica das sementesGerminationHalf-lifeSaturation concentrationSaturation timeSeed treatment.Concentração de saturaçãoGerminaçãoMeia-vidaTempo de saturaçãoTratamento de sementes.Ozonation has been evaluated as an alternative method for seed treatment. In this context, the goal of this study was to evaluate the saturation process and kinetics of decomposition of ozone in a porous medium composed of quinoa BRS Syetetuba and possible changes in seed quality. Ozone concentration and saturation time in the porous medium and half-life were determined by adopting an inlet ozone concentration of 885 ppm and a flow rate of 5.0 L min-1 at 25 °C. The ozonation periods adopted were 0, 30, 60, 90, and 120 min. Regarding the physiological quality of the seeds, the germination percentage, germination speed index, electrical conductivity, and length of the shoot, root, and normal seedlings were analyzed. At the inlet ozone concentration of 885 ppm and a flow rate of 5.0 L min-1, the saturation concentration and saturation time in the porous medium composed of quinoa were 522.5 ppm and 12.0 min, respectively. The half-life of ozone in the porous medium was 6.08 min at 25 °C. Under these conditions, ozonation did not affect the physiological quality of quinoa BRS Syetetuba seeds for up to 120 min.A ozonização tem sido avaliada como método alternativo para tratamento de sementes. Nesse contexto, objetivou-se avaliar o processo de saturação e a cinética de decomposição do ozônio em meio poroso composto de quinoa, cv. BRS Syetetuba, e possíveis alterações na qualidade das sementes. Determinaram-se a concentração e o tempo de saturação do ozônio no meio poroso e a meia-vida, adotando-se concentração de entrada de 885 ppm, vazão de 5,0 L min-1, a 25 ºC. Os períodos de ozonização adotados foram 0, 30, 60, 90 e 120 min. Quanto à qualidade fisiológica das sementes, analisaram-se o percentual de germinação, índice de velocidade de germinação, condutividade elétrica e comprimentos da parte aérea, do sistema radicular e das plântulas normais. Para concentração de entrada do ozônio de 885 ppm e vazão de 5,0 L min-1, a concentração e o tempo de saturação do ozônio no meio poroso composto de quinoa foi de 522,5 ppm e 12,0 min, respectivamente. A meia-vida do ozônio em meio poroso foi de 6,08 min, a 25 ºC. Nas condições a adotadas, a ozonização não afeta a qualidade fisiológica das sementes de quinoa, cv. BRS Syetetuba, por até 120 min.UEL2021-03-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4076210.5433/1679-0359.2021v42n3p1019Semina: Ciências Agrárias; Vol. 42 No. 3 (2021); 1019-1032Semina: Ciências Agrárias; v. 42 n. 3 (2021); 1019-10321679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/40762/29162Copyright (c) 2021 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessAlencar, Ernandes Rodrigues deJojoa, Wilson AnchicoSilva, Karine NoronhaSouza, Nara Oliveira Silva2022-10-04T12:35:35Zoai:ojs.pkp.sfu.ca:article/40762Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-04T12:35:35Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds
Ozonização de sementes de quinoa (Chenopodium quinoa Willd.): saturação e cinética de decomposição do ozônio e qualidade fisiológica das sementes
title Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds
spellingShingle Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds
Alencar, Ernandes Rodrigues de
Germination
Half-life
Saturation concentration
Saturation time
Seed treatment.
Concentração de saturação
Germinação
Meia-vida
Tempo de saturação
Tratamento de sementes.
title_short Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds
title_full Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds
title_fullStr Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds
title_full_unstemmed Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds
title_sort Ozonation of quinoa seeds (Chenopodium quinoa Willd.): saturation and decomposition kinetics of ozone and physiological quality of seeds
author Alencar, Ernandes Rodrigues de
author_facet Alencar, Ernandes Rodrigues de
Jojoa, Wilson Anchico
Silva, Karine Noronha
Souza, Nara Oliveira Silva
author_role author
author2 Jojoa, Wilson Anchico
Silva, Karine Noronha
Souza, Nara Oliveira Silva
author2_role author
author
author
dc.contributor.author.fl_str_mv Alencar, Ernandes Rodrigues de
Jojoa, Wilson Anchico
Silva, Karine Noronha
Souza, Nara Oliveira Silva
dc.subject.por.fl_str_mv Germination
Half-life
Saturation concentration
Saturation time
Seed treatment.
Concentração de saturação
Germinação
Meia-vida
Tempo de saturação
Tratamento de sementes.
topic Germination
Half-life
Saturation concentration
Saturation time
Seed treatment.
Concentração de saturação
Germinação
Meia-vida
Tempo de saturação
Tratamento de sementes.
description Ozonation has been evaluated as an alternative method for seed treatment. In this context, the goal of this study was to evaluate the saturation process and kinetics of decomposition of ozone in a porous medium composed of quinoa BRS Syetetuba and possible changes in seed quality. Ozone concentration and saturation time in the porous medium and half-life were determined by adopting an inlet ozone concentration of 885 ppm and a flow rate of 5.0 L min-1 at 25 °C. The ozonation periods adopted were 0, 30, 60, 90, and 120 min. Regarding the physiological quality of the seeds, the germination percentage, germination speed index, electrical conductivity, and length of the shoot, root, and normal seedlings were analyzed. At the inlet ozone concentration of 885 ppm and a flow rate of 5.0 L min-1, the saturation concentration and saturation time in the porous medium composed of quinoa were 522.5 ppm and 12.0 min, respectively. The half-life of ozone in the porous medium was 6.08 min at 25 °C. Under these conditions, ozonation did not affect the physiological quality of quinoa BRS Syetetuba seeds for up to 120 min.
publishDate 2021
dc.date.none.fl_str_mv 2021-03-19
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/40762
10.5433/1679-0359.2021v42n3p1019
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/40762
identifier_str_mv 10.5433/1679-0359.2021v42n3p1019
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/40762/29162
dc.rights.driver.fl_str_mv Copyright (c) 2021 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2021 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. 42 No. 3 (2021); 1019-1032
Semina: Ciências Agrárias; v. 42 n. 3 (2021); 1019-1032
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
_version_ 1799306083427155968

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