Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44974 |
Resumo: | Desiccation practiced during the preharvest period contributes to mechanized seed harvesting. This work aimed to verify whether wheat preharvest desiccation influences the morphological and physiological characteristics of the seedlings produced from the seeds of desiccated plants. The preharvest treatments included a combination of herbicides (glufosinate-ammonium, glyphosate, and paraquat) and phenological application stages (Zadoks: 83, 85, 87, and 92), as well as a control treatment (without application). Two wheat cultivars were used (BRS Parrudo and TBIO Sinuelo). Herbicide applications were observed to decrease the length and projected area of the shoots by 52 and 46%, respectively, as well as reduce the length, surface area and root volume when compared to the control treatment without application. The hydrogen peroxide concentration, as well as the enzymatic activity of guaiacol peroxidase, was observed to rise only in the treatments where the herbicides were applied. Physiologically, an increased hydrogen peroxide output was revealed, while the guaiacol peroxidase enzymatic activity increased in both cultivars, but with no effect noted in the superoxide dismutase enzymatic activity. The shoot and root morphology were negatively influenced, showing a rise in the enzymatic activity and hydrogen peroxide concentration in the seedlings from the desiccated plants. |
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Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvestMorphology and enzymatic activity of seedlings from wheat desiccated in pre-harvestglufosinate-ammonium; glyphosate, paraquat; Triticum aestivum (L).5.00.00.00-45.01.03.00-85.01.03.06-7glufosinate-ammonium; glyphosate, paraquat; Triticum aestivum (L).5.01.03.00-85.01.03.06-7Desiccation practiced during the preharvest period contributes to mechanized seed harvesting. This work aimed to verify whether wheat preharvest desiccation influences the morphological and physiological characteristics of the seedlings produced from the seeds of desiccated plants. The preharvest treatments included a combination of herbicides (glufosinate-ammonium, glyphosate, and paraquat) and phenological application stages (Zadoks: 83, 85, 87, and 92), as well as a control treatment (without application). Two wheat cultivars were used (BRS Parrudo and TBIO Sinuelo). Herbicide applications were observed to decrease the length and projected area of the shoots by 52 and 46%, respectively, as well as reduce the length, surface area and root volume when compared to the control treatment without application. The hydrogen peroxide concentration, as well as the enzymatic activity of guaiacol peroxidase, was observed to rise only in the treatments where the herbicides were applied. Physiologically, an increased hydrogen peroxide output was revealed, while the guaiacol peroxidase enzymatic activity increased in both cultivars, but with no effect noted in the superoxide dismutase enzymatic activity. The shoot and root morphology were negatively influenced, showing a rise in the enzymatic activity and hydrogen peroxide concentration in the seedlings from the desiccated plants.Desiccation practiced during the preharvest period contributes to mechanized seed harvesting. This work aimed to verify whether wheat preharvest desiccation influences the morphological and physiological characteristics of the seedlings produced from the seeds of desiccated plants. The preharvest treatments included a combination of herbicides (glufosinate-ammonium, glyphosate, and paraquat) and phenological application stages (Zadoks: 83, 85, 87, and 92), as well as a control treatment (without application). Two wheat cultivars were used (BRS Parrudo and TBIO Sinuelo). Herbicide applications were observed to decrease the length and projected area of the shoots by 52 and 46%, respectively, as well as reduce the length, surface area and root volume when compared to the control treatment without application. The hydrogen peroxide concentration, as well as the enzymatic activity of guaiacol peroxidase, was observed to rise only in the treatments where the herbicides were applied. Physiologically, an increased hydrogen peroxide output was revealed, while the guaiacol peroxidase enzymatic activity increased in both cultivars, but with no effect noted in the superoxide dismutase enzymatic activity. The shoot and root morphology were negatively influenced, showing a rise in the enzymatic activity and hydrogen peroxide concentration in the seedlings from the desiccated plants.Universidade Estadual de Maringá2020-08-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisaPesquisaapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4497410.4025/actasciagron.v43i1.44974Acta Scientiarum. Agronomy; Vol 43 (2021): Publicação contínua; e44974Acta Scientiarum. Agronomy; v. 43 (2021): Publicação contínua; e449741807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44974/751375150517Copyright (c) 2021 Acta Scientiarum. Agronomyhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessFipke, Glauber MonçonDeak, Evandro AdemirStecca, Jessica Deolinda LeivasBernardy, DanieleBerger, MirianTabaldi, Luciane AlmeriMartin, Thomas Newton2022-02-16T21:47:03Zoai:periodicos.uem.br/ojs:article/44974Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-02-16T21:47:03Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest |
title |
Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest |
spellingShingle |
Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest Fipke, Glauber Monçon glufosinate-ammonium; glyphosate, paraquat; Triticum aestivum (L). 5.00.00.00-4 5.01.03.00-8 5.01.03.06-7 glufosinate-ammonium; glyphosate, paraquat; Triticum aestivum (L). 5.01.03.00-8 5.01.03.06-7 |
title_short |
Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest |
title_full |
Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest |
title_fullStr |
Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest |
title_full_unstemmed |
Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest |
title_sort |
Morphology and enzymatic activity of seedlings from wheat desiccated in pre-harvest |
author |
Fipke, Glauber Monçon |
author_facet |
Fipke, Glauber Monçon Deak, Evandro Ademir Stecca, Jessica Deolinda Leivas Bernardy, Daniele Berger, Mirian Tabaldi, Luciane Almeri Martin, Thomas Newton |
author_role |
author |
author2 |
Deak, Evandro Ademir Stecca, Jessica Deolinda Leivas Bernardy, Daniele Berger, Mirian Tabaldi, Luciane Almeri Martin, Thomas Newton |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Fipke, Glauber Monçon Deak, Evandro Ademir Stecca, Jessica Deolinda Leivas Bernardy, Daniele Berger, Mirian Tabaldi, Luciane Almeri Martin, Thomas Newton |
dc.subject.por.fl_str_mv |
glufosinate-ammonium; glyphosate, paraquat; Triticum aestivum (L). 5.00.00.00-4 5.01.03.00-8 5.01.03.06-7 glufosinate-ammonium; glyphosate, paraquat; Triticum aestivum (L). 5.01.03.00-8 5.01.03.06-7 |
topic |
glufosinate-ammonium; glyphosate, paraquat; Triticum aestivum (L). 5.00.00.00-4 5.01.03.00-8 5.01.03.06-7 glufosinate-ammonium; glyphosate, paraquat; Triticum aestivum (L). 5.01.03.00-8 5.01.03.06-7 |
description |
Desiccation practiced during the preharvest period contributes to mechanized seed harvesting. This work aimed to verify whether wheat preharvest desiccation influences the morphological and physiological characteristics of the seedlings produced from the seeds of desiccated plants. The preharvest treatments included a combination of herbicides (glufosinate-ammonium, glyphosate, and paraquat) and phenological application stages (Zadoks: 83, 85, 87, and 92), as well as a control treatment (without application). Two wheat cultivars were used (BRS Parrudo and TBIO Sinuelo). Herbicide applications were observed to decrease the length and projected area of the shoots by 52 and 46%, respectively, as well as reduce the length, surface area and root volume when compared to the control treatment without application. The hydrogen peroxide concentration, as well as the enzymatic activity of guaiacol peroxidase, was observed to rise only in the treatments where the herbicides were applied. Physiologically, an increased hydrogen peroxide output was revealed, while the guaiacol peroxidase enzymatic activity increased in both cultivars, but with no effect noted in the superoxide dismutase enzymatic activity. The shoot and root morphology were negatively influenced, showing a rise in the enzymatic activity and hydrogen peroxide concentration in the seedlings from the desiccated plants. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Pesquisa |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44974 10.4025/actasciagron.v43i1.44974 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44974 |
identifier_str_mv |
10.4025/actasciagron.v43i1.44974 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44974/751375150517 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 43 (2021): Publicação contínua; e44974 Acta Scientiarum. Agronomy; v. 43 (2021): Publicação contínua; e44974 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305911322279936 |