Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
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/32112 |
Resumo: | The application of N at the appropriate time and dose can increase oat crop efficiency by increasing grain yield through changes in production components. High doses of N, depending on the genotype and the environment, can result in plant lodging, which can be addressed with the use of growth retardants. The aim of this study was to evaluate the yield components, lodging, and productivity of white oat cultivars cultivated at two planting locations under different N levels with trinexapac-ethyl growth retardant. Two assays (with and without the application of the growth retardant agent) were used in the experiments, which were set up in the region of Londrina and Mauá da Serra, Parana State, Brazil, in a randomized block design with split plots and four replications. The plots consisted of four white oat cultivars (IPR Afrodite, IPR Artemis, URS Corona, and URS Guria) and the subplots of four doses of N (0, 30, 60, and 90 kg ha-1). Plant height, number of panicles per unit area, number of grains per panicle, thousand grain weight, lodging of plants, and grain yield were evaluated. For the conditions under which the experiments were conducted, the growth regulator decreased plant height and lodging. Furthermore, the growth regulator in combination with N topdressing increased the number of panicles per unit area. Thus, the increase in grain yield with the application of a growth retardant was dependent on the characteristics of the plant growth environment. The response of genotypes to N fertilization was also dependent on the soil and climatic characteristics of the environment. |
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Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethylDesempenho produtivo de cultivares de aveia branca em resposta à adubação nitrogenada e ao trinexapac-ethylAvena sativa L. Growth regulatorLodgingNitrogenProductivity.AcamamentoAvena sativa L. NitrogênioProdutividadeRedutor de crescimento.The application of N at the appropriate time and dose can increase oat crop efficiency by increasing grain yield through changes in production components. High doses of N, depending on the genotype and the environment, can result in plant lodging, which can be addressed with the use of growth retardants. The aim of this study was to evaluate the yield components, lodging, and productivity of white oat cultivars cultivated at two planting locations under different N levels with trinexapac-ethyl growth retardant. Two assays (with and without the application of the growth retardant agent) were used in the experiments, which were set up in the region of Londrina and Mauá da Serra, Parana State, Brazil, in a randomized block design with split plots and four replications. The plots consisted of four white oat cultivars (IPR Afrodite, IPR Artemis, URS Corona, and URS Guria) and the subplots of four doses of N (0, 30, 60, and 90 kg ha-1). Plant height, number of panicles per unit area, number of grains per panicle, thousand grain weight, lodging of plants, and grain yield were evaluated. For the conditions under which the experiments were conducted, the growth regulator decreased plant height and lodging. Furthermore, the growth regulator in combination with N topdressing increased the number of panicles per unit area. Thus, the increase in grain yield with the application of a growth retardant was dependent on the characteristics of the plant growth environment. The response of genotypes to N fertilization was also dependent on the soil and climatic characteristics of the environment.A aplicação de nitrogênio (N) no momento e dose adequados pode aumentar sua eficiência na cultura da aveia, incrementando o rendimento de grãos por meio de alterações nos componentes de produção. No entanto, altas doses deste nutriente podem resultar no acamamento das plantas, o que pode ser contornado com uso de redutores de crescimento. As respostas dos cereais as doses de N e ao redutor são variáveis de acordo com o genótipo e o ambiente de cultivo. Neste sentido, objetivou-se avaliar os componentes de rendimento, o acamamento e a produtividade de grãos de cultivares de aveia branca granífera cultivadas em dois ambientes, sob diferentes doses de nitrogênio, associadas ao redutor de crescimento trinexapac-ethyl. Os experimentos foram conduzidos nos municípios de Londrina e Mauá da Serra, Paraná, sob o delineamento experimental de blocos casualizados com parcelas subdivididas, com quatro repetições. As parcelas constaram de quatro cultivares de aveia branca (IPR Afrodite, IPR Artemis, URS Corona e URS Guria) e as subparcelas de quatro doses de nitrogênio (N) em cobertura (0, 30, 60 e 90 kg ha-1). Em cada local foram conduzidos dois experimentos, com e sem aplicação do redutor de crescimento. Foram avaliados: altura de plantas, número de panículas m-2, número de grãos por panícula, massa de mil grãos, acamamento de plantas e produtividade de grãos. Nas condições em que os experimentos foram conduzidos, a aplicação do redutor de crescimento diminui a altura e o acamamento de plantas e, quando associado à adubação nitrogenada, eleva o número de panículas m-2. O aumento da produtividade de grãos, com a utilização de redutor de crescimento, depende das características do ambiente de cultivo, sendo observado somente em Mauá da Serra. A resposta das cultivares à fertilização nitrogenada de cobertura também depende das características edafoclimáticas dos locais de cultivo.UEL2019-08-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3211210.5433/1679-0359.2019v40n5Supl1p2121Semina: Ciências Agrárias; Vol. 40 No. 5Supl1 (2019); 2121-2136Semina: Ciências Agrárias; v. 40 n. 5Supl1 (2019); 2121-21361679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32112/25835Copyright (c) 2019 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessBazzo, José Henrique BizzarriRiede, Carlos RobertoArruda, Klever Márcio AntunesCardoso, Carolina PereiraFranzoni, IsabelaFonseca, Inês Cristina de BatistaZucareli, Claudemir2022-10-18T15:47:54Zoai:ojs.pkp.sfu.ca:article/32112Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-18T15:47:54Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl Desempenho produtivo de cultivares de aveia branca em resposta à adubação nitrogenada e ao trinexapac-ethyl |
title |
Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl |
spellingShingle |
Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl Bazzo, José Henrique Bizzarri Avena sativa L. Growth regulator Lodging Nitrogen Productivity. Acamamento Avena sativa L. Nitrogênio Produtividade Redutor de crescimento. |
title_short |
Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl |
title_full |
Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl |
title_fullStr |
Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl |
title_full_unstemmed |
Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl |
title_sort |
Performance of white oat cultivars in response to nitrogen fertilization and trinexapac-ethyl |
author |
Bazzo, José Henrique Bizzarri |
author_facet |
Bazzo, José Henrique Bizzarri Riede, Carlos Roberto Arruda, Klever Márcio Antunes Cardoso, Carolina Pereira Franzoni, Isabela Fonseca, Inês Cristina de Batista Zucareli, Claudemir |
author_role |
author |
author2 |
Riede, Carlos Roberto Arruda, Klever Márcio Antunes Cardoso, Carolina Pereira Franzoni, Isabela Fonseca, Inês Cristina de Batista Zucareli, Claudemir |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Bazzo, José Henrique Bizzarri Riede, Carlos Roberto Arruda, Klever Márcio Antunes Cardoso, Carolina Pereira Franzoni, Isabela Fonseca, Inês Cristina de Batista Zucareli, Claudemir |
dc.subject.por.fl_str_mv |
Avena sativa L. Growth regulator Lodging Nitrogen Productivity. Acamamento Avena sativa L. Nitrogênio Produtividade Redutor de crescimento. |
topic |
Avena sativa L. Growth regulator Lodging Nitrogen Productivity. Acamamento Avena sativa L. Nitrogênio Produtividade Redutor de crescimento. |
description |
The application of N at the appropriate time and dose can increase oat crop efficiency by increasing grain yield through changes in production components. High doses of N, depending on the genotype and the environment, can result in plant lodging, which can be addressed with the use of growth retardants. The aim of this study was to evaluate the yield components, lodging, and productivity of white oat cultivars cultivated at two planting locations under different N levels with trinexapac-ethyl growth retardant. Two assays (with and without the application of the growth retardant agent) were used in the experiments, which were set up in the region of Londrina and Mauá da Serra, Parana State, Brazil, in a randomized block design with split plots and four replications. The plots consisted of four white oat cultivars (IPR Afrodite, IPR Artemis, URS Corona, and URS Guria) and the subplots of four doses of N (0, 30, 60, and 90 kg ha-1). Plant height, number of panicles per unit area, number of grains per panicle, thousand grain weight, lodging of plants, and grain yield were evaluated. For the conditions under which the experiments were conducted, the growth regulator decreased plant height and lodging. Furthermore, the growth regulator in combination with N topdressing increased the number of panicles per unit area. Thus, the increase in grain yield with the application of a growth retardant was dependent on the characteristics of the plant growth environment. The response of genotypes to N fertilization was also dependent on the soil and climatic characteristics of the environment. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-08-07 |
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/32112 10.5433/1679-0359.2019v40n5Supl1p2121 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32112 |
identifier_str_mv |
10.5433/1679-0359.2019v40n5Supl1p2121 |
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/32112/25835 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 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. 40 No. 5Supl1 (2019); 2121-2136 Semina: Ciências Agrárias; v. 40 n. 5Supl1 (2019); 2121-2136 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_ |
1799306079241240576 |