Water use efficiency by coffee arabica after glyphosate application
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/17830 |
Resumo: | Many coffee growers apply glyphosate in directed applications, but some phytotoxicity has been noted. It is believed some herbicides can exert a direct or indirect negative effect on photosynthesis by reducing the metabolic rate in a way that can affect the water use efficiency. The objective of this study was to investigate the variables related to water use among coffee cultivars subjected to the application of glyphosate and the effects of each dose. The experiment was conducted in a greenhouse using three varieties of coffee (Coffea arabica), Acaiá (MG-6851), Catucaí Amarelo (2SL) and Topázio (MG-1190), and three doses of glyphosate (0.0, 115.2 and 460.8 g acid equivalent ha-1), in a factorial 3 x 3 design. At 15 days after application, a reduction in stomatal conductance was observed, and smaller transpiration rate and water use efficiency were found in the fourth leaf at 15 days after application. There was a decrease in the transpiration rate at 45 DAA, with the Acaiá cultivar showing reductions with 115.2 g ha-1. There was transitory reduction in water use efficiency with glyphosate application, but can affect the growth and production. The Acaiá cultivar showed the highest tolerance to glyphosate because the water use efficiency after herbicide application. |
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Water use efficiency by coffee arabica after glyphosate applicationherbicideEPSPsCoffea arabicawater use efficiencytranspirationFitotecniaMany coffee growers apply glyphosate in directed applications, but some phytotoxicity has been noted. It is believed some herbicides can exert a direct or indirect negative effect on photosynthesis by reducing the metabolic rate in a way that can affect the water use efficiency. The objective of this study was to investigate the variables related to water use among coffee cultivars subjected to the application of glyphosate and the effects of each dose. The experiment was conducted in a greenhouse using three varieties of coffee (Coffea arabica), Acaiá (MG-6851), Catucaí Amarelo (2SL) and Topázio (MG-1190), and three doses of glyphosate (0.0, 115.2 and 460.8 g acid equivalent ha-1), in a factorial 3 x 3 design. At 15 days after application, a reduction in stomatal conductance was observed, and smaller transpiration rate and water use efficiency were found in the fourth leaf at 15 days after application. There was a decrease in the transpiration rate at 45 DAA, with the Acaiá cultivar showing reductions with 115.2 g ha-1. There was transitory reduction in water use efficiency with glyphosate application, but can affect the growth and production. The Acaiá cultivar showed the highest tolerance to glyphosate because the water use efficiency after herbicide application. Universidade Estadual de Maringá2014-07-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpesquisa empíricaapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1783010.4025/actasciagron.v36i3.17830Acta Scientiarum. Agronomy; Vol 36 No 3 (2014); 373-377Acta Scientiarum. Agronomy; v. 36 n. 3 (2014); 373-3771807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17830/pdf_30Carvalho, Felipe Paolinelli deFrança, André CabralSouza, Bruna PereiraFialho, Cíntia TeixeiraSantos, José BarbosaSilva, Antonio Albertoinfo:eu-repo/semantics/openAccess2014-08-21T14:49:19Zoai:periodicos.uem.br/ojs:article/17830Revistahttp://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:2014-08-21T14:49:19Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Water use efficiency by coffee arabica after glyphosate application |
title |
Water use efficiency by coffee arabica after glyphosate application |
spellingShingle |
Water use efficiency by coffee arabica after glyphosate application Carvalho, Felipe Paolinelli de herbicide EPSPs Coffea arabica water use efficiency transpiration Fitotecnia |
title_short |
Water use efficiency by coffee arabica after glyphosate application |
title_full |
Water use efficiency by coffee arabica after glyphosate application |
title_fullStr |
Water use efficiency by coffee arabica after glyphosate application |
title_full_unstemmed |
Water use efficiency by coffee arabica after glyphosate application |
title_sort |
Water use efficiency by coffee arabica after glyphosate application |
author |
Carvalho, Felipe Paolinelli de |
author_facet |
Carvalho, Felipe Paolinelli de França, André Cabral Souza, Bruna Pereira Fialho, Cíntia Teixeira Santos, José Barbosa Silva, Antonio Alberto |
author_role |
author |
author2 |
França, André Cabral Souza, Bruna Pereira Fialho, Cíntia Teixeira Santos, José Barbosa Silva, Antonio Alberto |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Carvalho, Felipe Paolinelli de França, André Cabral Souza, Bruna Pereira Fialho, Cíntia Teixeira Santos, José Barbosa Silva, Antonio Alberto |
dc.subject.por.fl_str_mv |
herbicide EPSPs Coffea arabica water use efficiency transpiration Fitotecnia |
topic |
herbicide EPSPs Coffea arabica water use efficiency transpiration Fitotecnia |
description |
Many coffee growers apply glyphosate in directed applications, but some phytotoxicity has been noted. It is believed some herbicides can exert a direct or indirect negative effect on photosynthesis by reducing the metabolic rate in a way that can affect the water use efficiency. The objective of this study was to investigate the variables related to water use among coffee cultivars subjected to the application of glyphosate and the effects of each dose. The experiment was conducted in a greenhouse using three varieties of coffee (Coffea arabica), Acaiá (MG-6851), Catucaí Amarelo (2SL) and Topázio (MG-1190), and three doses of glyphosate (0.0, 115.2 and 460.8 g acid equivalent ha-1), in a factorial 3 x 3 design. At 15 days after application, a reduction in stomatal conductance was observed, and smaller transpiration rate and water use efficiency were found in the fourth leaf at 15 days after application. There was a decrease in the transpiration rate at 45 DAA, with the Acaiá cultivar showing reductions with 115.2 g ha-1. There was transitory reduction in water use efficiency with glyphosate application, but can affect the growth and production. The Acaiá cultivar showed the highest tolerance to glyphosate because the water use efficiency after herbicide application. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07-07 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion pesquisa empírica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17830 10.4025/actasciagron.v36i3.17830 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17830 |
identifier_str_mv |
10.4025/actasciagron.v36i3.17830 |
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/17830/pdf_30 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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 36 No 3 (2014); 373-377 Acta Scientiarum. Agronomy; v. 36 n. 3 (2014); 373-377 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_ |
1799305908839251968 |