Leaf anatomy of emerald grass submitted to quantitative application of herbicides
Autor(a) principal: | |
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Data de Publicação: | 2016 |
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/21488 |
Resumo: | The aim of this work was to evaluate the selectivity of herbicides applied in post-emergence on Zoysia japonica Steud (Poaceae) and determine associations with the leaf anatomy of this grass. The experimental design was randomized blocks with four replications. The treatments were the application of the herbicides bentazon (720 g ha-1), nicosulfuron (50 g ha-1), halosulfuron (112.5 g ha-1), oxadiazon (875 g ha-1) and 2.4-D (698 g ha-1), plus a control treatment without herbicide application. Phytotoxicity was assessed every seven days after application (DAA) of the herbicides until the symptoms disappeared. Foliar anatomical analyses of the leaves in the collected grass were conducted until the 35th DAA. The quantitative characters of the keel and wing region of the blade of Z. japonica were assessed, as well as the biometric characters, which were submitted to an analysis of variance F test, and the averages were compared by Tukey’s test at a probability of 5%. The values of the anatomical characters of the foliar blade were tested by cluster analysis. The application of herbicides did not negatively influence the height of the plants but did reduce their dry mass. Toxic symptoms disappeared after 21 DAA, with the only symptoms of injury observed in plants treated with the herbicides oxadiazon and nicosulfuron. In addition, the cluster analysis indicated the formation of a unique discriminatory group. Thus, the results show that the herbicides applied to Z. japonica were selective for the species. |
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Semina. Ciências Agrárias (Online) |
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Leaf anatomy of emerald grass submitted to quantitative application of herbicidesAnatomia foliar quantitativa de grama esmeralda submetida à aplicação de herbicidasPlant anatomyLawnsSelectivityZoysia japonica.Anatomia vegetalGramadosSeletividadeZoysia japonica.The aim of this work was to evaluate the selectivity of herbicides applied in post-emergence on Zoysia japonica Steud (Poaceae) and determine associations with the leaf anatomy of this grass. The experimental design was randomized blocks with four replications. The treatments were the application of the herbicides bentazon (720 g ha-1), nicosulfuron (50 g ha-1), halosulfuron (112.5 g ha-1), oxadiazon (875 g ha-1) and 2.4-D (698 g ha-1), plus a control treatment without herbicide application. Phytotoxicity was assessed every seven days after application (DAA) of the herbicides until the symptoms disappeared. Foliar anatomical analyses of the leaves in the collected grass were conducted until the 35th DAA. The quantitative characters of the keel and wing region of the blade of Z. japonica were assessed, as well as the biometric characters, which were submitted to an analysis of variance F test, and the averages were compared by Tukey’s test at a probability of 5%. The values of the anatomical characters of the foliar blade were tested by cluster analysis. The application of herbicides did not negatively influence the height of the plants but did reduce their dry mass. Toxic symptoms disappeared after 21 DAA, with the only symptoms of injury observed in plants treated with the herbicides oxadiazon and nicosulfuron. In addition, the cluster analysis indicated the formation of a unique discriminatory group. Thus, the results show that the herbicides applied to Z. japonica were selective for the species.Objetivou-se com esse trabalho avaliar a seletividade de herbicidas aplicados em pós-emergência sobre grama Esmeralda – Zoysia japonica Steud (Poaceae), em associação com estudos da anatomia foliar dessa grama. O delineamento experimental foi em blocos ao acaso, com quatro repetições. Os tratamentos constituíram da aplicação dos herbicidas: bentazon (720 g ha-1), nicosulfuron (50 g ha-1), halosulfuron (112,5 g ha-1), oxadiazon (875 g ha-1) e 2,4-D (698 g ha-1), além de um tratamento controle, sem aplicação de herbicidas. As avaliações de fitointoxicação foram realizadas a cada sete dias após a aplicação dos herbicidas (DAA) até o desaparecimento dos sintomas. Realizaram-se análises anatômicas foliares da grama coletando-se folhas no 35th DAA. Avaliaram-se os caracteres quantitativos da região da quilha e da asa do limbo de Z. japonica, bem como os caracteres biométricos da grama, os quais foram submetidos à análise de variância pelo teste F, e as médias comparadas pelo teste de Tukey a 5%. Os valores dos caracteres anatômicos do limbo foliar foram submetidos ao teste de análise de agrupamento. A aplicação de herbicidas não influenciou negativamente a altura das plantas, porém reduziu massa seca. Os sintomas de fitointoxicação desapareceram até os 21 DAA, sendo que os únicos sintomas de injúrias foram observados nas plantas tratadas com os herbicidas nicosulfuron e oxadiazon. Além disso, a análise de agrupamento indicou a formação de um único grupo discriminatório. Desta forma, os resultados demonstram que os herbicidas aplicados sobre Z. japonica foram seletivos à espécie.UEL2016-08-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empírica de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2148810.5433/1679-0359.2016v37n4p1767Semina: Ciências Agrárias; Vol. 37 No. 4 (2016); 1767-1778Semina: Ciências Agrárias; v. 37 n. 4 (2016); 1767-17781679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/21488/19633http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessMarques, Renata PereiraMartins, DagobertoRodella, Roberto AntonioCosta, Saulo Italo AlmeidaVitorino, Hermeson dos Santos2022-11-30T16:22:34Zoai:ojs.pkp.sfu.ca:article/21488Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-30T16:22:34Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Leaf anatomy of emerald grass submitted to quantitative application of herbicides Anatomia foliar quantitativa de grama esmeralda submetida à aplicação de herbicidas |
title |
Leaf anatomy of emerald grass submitted to quantitative application of herbicides |
spellingShingle |
Leaf anatomy of emerald grass submitted to quantitative application of herbicides Marques, Renata Pereira Plant anatomy Lawns Selectivity Zoysia japonica. Anatomia vegetal Gramados Seletividade Zoysia japonica. |
title_short |
Leaf anatomy of emerald grass submitted to quantitative application of herbicides |
title_full |
Leaf anatomy of emerald grass submitted to quantitative application of herbicides |
title_fullStr |
Leaf anatomy of emerald grass submitted to quantitative application of herbicides |
title_full_unstemmed |
Leaf anatomy of emerald grass submitted to quantitative application of herbicides |
title_sort |
Leaf anatomy of emerald grass submitted to quantitative application of herbicides |
author |
Marques, Renata Pereira |
author_facet |
Marques, Renata Pereira Martins, Dagoberto Rodella, Roberto Antonio Costa, Saulo Italo Almeida Vitorino, Hermeson dos Santos |
author_role |
author |
author2 |
Martins, Dagoberto Rodella, Roberto Antonio Costa, Saulo Italo Almeida Vitorino, Hermeson dos Santos |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Marques, Renata Pereira Martins, Dagoberto Rodella, Roberto Antonio Costa, Saulo Italo Almeida Vitorino, Hermeson dos Santos |
dc.subject.por.fl_str_mv |
Plant anatomy Lawns Selectivity Zoysia japonica. Anatomia vegetal Gramados Seletividade Zoysia japonica. |
topic |
Plant anatomy Lawns Selectivity Zoysia japonica. Anatomia vegetal Gramados Seletividade Zoysia japonica. |
description |
The aim of this work was to evaluate the selectivity of herbicides applied in post-emergence on Zoysia japonica Steud (Poaceae) and determine associations with the leaf anatomy of this grass. The experimental design was randomized blocks with four replications. The treatments were the application of the herbicides bentazon (720 g ha-1), nicosulfuron (50 g ha-1), halosulfuron (112.5 g ha-1), oxadiazon (875 g ha-1) and 2.4-D (698 g ha-1), plus a control treatment without herbicide application. Phytotoxicity was assessed every seven days after application (DAA) of the herbicides until the symptoms disappeared. Foliar anatomical analyses of the leaves in the collected grass were conducted until the 35th DAA. The quantitative characters of the keel and wing region of the blade of Z. japonica were assessed, as well as the biometric characters, which were submitted to an analysis of variance F test, and the averages were compared by Tukey’s test at a probability of 5%. The values of the anatomical characters of the foliar blade were tested by cluster analysis. The application of herbicides did not negatively influence the height of the plants but did reduce their dry mass. Toxic symptoms disappeared after 21 DAA, with the only symptoms of injury observed in plants treated with the herbicides oxadiazon and nicosulfuron. In addition, the cluster analysis indicated the formation of a unique discriminatory group. Thus, the results show that the herbicides applied to Z. japonica were selective for the species. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-08-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Empírica de Campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/21488 10.5433/1679-0359.2016v37n4p1767 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/21488 |
identifier_str_mv |
10.5433/1679-0359.2016v37n4p1767 |
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/21488/19633 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
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. 37 No. 4 (2016); 1767-1778 Semina: Ciências Agrárias; v. 37 n. 4 (2016); 1767-1778 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_ |
1799306073898745856 |