Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/943 |
Resumo: | The objective of this work was to evaluate the effect of doses and times of application of three growth regulators on wheat stem elongation. The experiments were conducted in Viçosa, Minas Gerais State, from May to September 2005, in a factorial and hierarchical randomized block design with four repetitions and a control treatment. Treatments consisted of 500, 1000 and 1500 g ha-1 of chlormequat; 62.5, 125.0 and 187.5 g ha-1 of trinexapac-ethyl and 40, 80 and 120 g ha-1 of paclobutrazol, applied either at the 6 or 8 stage of the Feeks and Large scale, with a control. Stem length with trinexapac-ethyl was smaller than with chlormequat, which was in its turn smaller than with paclobutrazol. Application of growth regulators at stage 1 produced shorter basal internodes, whereas the stage 2 application caused greater reduction in the peduncle. The increase in chlormequat and trinexapac-ethyl doses reduced length of stem and its parts. The increase in paclobutrazol doses had very small effects on wheat growth and its parts. |
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Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943Efeitos de reguladores de crescimento na elongação do colmo de trigo - DOI: 10.4025/actasciagron.v32i1.943Triticum aestivum L.chlormequattrinexapac-ethylpaclobutrazolTriticum aestivum L.clormequattrinexapac-etilpaclobutrazol5.01.03.01-6The objective of this work was to evaluate the effect of doses and times of application of three growth regulators on wheat stem elongation. The experiments were conducted in Viçosa, Minas Gerais State, from May to September 2005, in a factorial and hierarchical randomized block design with four repetitions and a control treatment. Treatments consisted of 500, 1000 and 1500 g ha-1 of chlormequat; 62.5, 125.0 and 187.5 g ha-1 of trinexapac-ethyl and 40, 80 and 120 g ha-1 of paclobutrazol, applied either at the 6 or 8 stage of the Feeks and Large scale, with a control. Stem length with trinexapac-ethyl was smaller than with chlormequat, which was in its turn smaller than with paclobutrazol. Application of growth regulators at stage 1 produced shorter basal internodes, whereas the stage 2 application caused greater reduction in the peduncle. The increase in chlormequat and trinexapac-ethyl doses reduced length of stem and its parts. The increase in paclobutrazol doses had very small effects on wheat growth and its parts.Objetivou-se com este trabalho avaliar o efeito de doses e épocas de aplicação de três reguladores de crescimento na elongação do colmo de plantas de trigo. O experimento, conduzido em Viçosa, Estado de Minas Gerais, de maio a setembro de 2005, foi instalado com tratamentos em esquema fatorial e hierárquico com uma testemunha, no delineamento em blocos casualizados com quatro repetições. Os tratamentos foram 500; 1.000 e 1.500 g há-1 de clormequat; 62,5; 125,0 e 187,5 g há-1 de trinexapac-etil e 40; 80 e 120 g há-1 de paclobutrazol, aplicados no estádio 6 ou 8 da escala Feeks e Large, e uma testemunha. O comprimento do colmo com trinexapac-etil foi menor do que com o clormequat, que, por sua vez, foi menor do que com o paclobutrazol. A aplicação de reguladores na época 1 promoveu maior redução dos entrenós basais, enquanto a aplicação na época 2 proporcionou maior influência no pedúnculo. O aumento das doses de clormequat e trinexapac-etil promoveu redução do comprimento do colmo e das partes que o formam. O aumento das doses de paclobutrazol promoveu respostas pouco expressivas no colmo e seus componentes.Universidade Estadual de Maringá2009-11-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/94310.4025/actasciagron.v32i1.943Acta Scientiarum. Agronomy; Vol 32 No 1 (2010); 109-116Acta Scientiarum. Agronomy; v. 32 n. 1 (2010); 109-1161807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/943/943Espindula, Marcelo CuritibaRocha, Valterley SoaresSouza, Leandro Torres deSouza, Moacil Alves deGrossi, José Antônio Saraivainfo:eu-repo/semantics/openAccess2022-11-23T18:37:17Zoai:periodicos.uem.br/ojs:article/943Revistahttp://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:2022-11-23T18:37:17Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943 Efeitos de reguladores de crescimento na elongação do colmo de trigo - DOI: 10.4025/actasciagron.v32i1.943 |
title |
Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943 |
spellingShingle |
Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943 Espindula, Marcelo Curitiba Triticum aestivum L. chlormequat trinexapac-ethyl paclobutrazol Triticum aestivum L. clormequat trinexapac-etil paclobutrazol 5.01.03.01-6 |
title_short |
Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943 |
title_full |
Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943 |
title_fullStr |
Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943 |
title_full_unstemmed |
Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943 |
title_sort |
Effect of growth regulators on wheat stem elongation - DOI: 10.4025/actasciagron.v32i1.943 |
author |
Espindula, Marcelo Curitiba |
author_facet |
Espindula, Marcelo Curitiba Rocha, Valterley Soares Souza, Leandro Torres de Souza, Moacil Alves de Grossi, José Antônio Saraiva |
author_role |
author |
author2 |
Rocha, Valterley Soares Souza, Leandro Torres de Souza, Moacil Alves de Grossi, José Antônio Saraiva |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Espindula, Marcelo Curitiba Rocha, Valterley Soares Souza, Leandro Torres de Souza, Moacil Alves de Grossi, José Antônio Saraiva |
dc.subject.por.fl_str_mv |
Triticum aestivum L. chlormequat trinexapac-ethyl paclobutrazol Triticum aestivum L. clormequat trinexapac-etil paclobutrazol 5.01.03.01-6 |
topic |
Triticum aestivum L. chlormequat trinexapac-ethyl paclobutrazol Triticum aestivum L. clormequat trinexapac-etil paclobutrazol 5.01.03.01-6 |
description |
The objective of this work was to evaluate the effect of doses and times of application of three growth regulators on wheat stem elongation. The experiments were conducted in Viçosa, Minas Gerais State, from May to September 2005, in a factorial and hierarchical randomized block design with four repetitions and a control treatment. Treatments consisted of 500, 1000 and 1500 g ha-1 of chlormequat; 62.5, 125.0 and 187.5 g ha-1 of trinexapac-ethyl and 40, 80 and 120 g ha-1 of paclobutrazol, applied either at the 6 or 8 stage of the Feeks and Large scale, with a control. Stem length with trinexapac-ethyl was smaller than with chlormequat, which was in its turn smaller than with paclobutrazol. Application of growth regulators at stage 1 produced shorter basal internodes, whereas the stage 2 application caused greater reduction in the peduncle. The increase in chlormequat and trinexapac-ethyl doses reduced length of stem and its parts. The increase in paclobutrazol doses had very small effects on wheat growth and its parts. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-11-04 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/943 10.4025/actasciagron.v32i1.943 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/943 |
identifier_str_mv |
10.4025/actasciagron.v32i1.943 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/943/943 |
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 32 No 1 (2010); 109-116 Acta Scientiarum. Agronomy; v. 32 n. 1 (2010); 109-116 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 |
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1799305903241953280 |