The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying

Bibliographic Details
Main Author: Pereira, Liese de Vargas
Publication Date: 2017
Other Authors: Carvalho, Leonardo Bianco de, Dal Magro, Taísa
Format: Article
Language: por
Source: Revista de Ciências Agroveterinárias (Online)
Download full: https://periodicos.udesc.br/index.php/agroveterinaria/article/view/223811711622017102
Summary: This work aimed to study alternatives to the chemical management of italian ryegrass (Lolium multiflorum), taking into account environmental and biological factors at the time of herbicide application, as well as the possible differential response among biotypes of the species. The objective of this study was to evaluate the influence of air temperature on the chemical control of two ryegrass biotypes. The experiment was conducted in a greenhouse, in a completely randomized design with four replicates and organized in a 2x2x10 factorial scheme (biotype, temperature and herbicide). One biotype was obtained from an area with annual crops and the other from a perennial crop. The tested herbicides were: clethodim, clodinafop-propargyl, fenoxaprop-p-ethyl+clethodim, glyphosate, iodosulfuron-methyl, paraquat, paraquat+diuron, sethoxydim and tepraloxydim. The application occurred in plants maintained in air temperature of 20-22 °C and 30-34 °C. The control was evaluated at 7, 14, 21 and 28 days after application of the treatments, assigning the percentage of 0 to 100 that corresponded to the absence of injury and death of the plants, respectively. The data was submitted to analysis of variance and the means were compared by the Tukey test (P=0.05). In general, herbicides were more effective at a temperature of 20-22 °C, and the temperature of 30-34 °C impaired ryegrass control. The susceptibility to the grass killers was dependent on the biotype in application under temperature of 30-34 °C.
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spelling The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of sprayingA eficácia do controle químico varia com o genótipo de azevém e a temperatura do ar no momento da aplicaçãoLolium multiflorumherbicidesenvironmental condition.Lolium multiflorumherbicidascondição ambiental.This work aimed to study alternatives to the chemical management of italian ryegrass (Lolium multiflorum), taking into account environmental and biological factors at the time of herbicide application, as well as the possible differential response among biotypes of the species. The objective of this study was to evaluate the influence of air temperature on the chemical control of two ryegrass biotypes. The experiment was conducted in a greenhouse, in a completely randomized design with four replicates and organized in a 2x2x10 factorial scheme (biotype, temperature and herbicide). One biotype was obtained from an area with annual crops and the other from a perennial crop. The tested herbicides were: clethodim, clodinafop-propargyl, fenoxaprop-p-ethyl+clethodim, glyphosate, iodosulfuron-methyl, paraquat, paraquat+diuron, sethoxydim and tepraloxydim. The application occurred in plants maintained in air temperature of 20-22 °C and 30-34 °C. The control was evaluated at 7, 14, 21 and 28 days after application of the treatments, assigning the percentage of 0 to 100 that corresponded to the absence of injury and death of the plants, respectively. The data was submitted to analysis of variance and the means were compared by the Tukey test (P=0.05). In general, herbicides were more effective at a temperature of 20-22 °C, and the temperature of 30-34 °C impaired ryegrass control. The susceptibility to the grass killers was dependent on the biotype in application under temperature of 30-34 °C.Este trabalho visou estudar alternativas para o manejo químico de azevém (Lolium multiflorum), levando em consideração fatores ambientais e biológicos no momento da aplicação dos herbicidas, bem como a possível resposta diferencial entre biótipos da espécie. Objetivou-se avaliar a influência da temperatura do ar no controle químico de dois biótipos de azevém. O experimento foi conduzido em casa de vegetação, em delineamento inteiramente casualizado com quatro repetições e organizado em esquema fatorial 2x2x10 (biótipo, temperatura e herbicida). Um biótipo foi proveniente de área com cultivos anuais e o outro, de cultivo perene. Os herbicidas testados foram: clethodim, clodinafop-propargyl, fenoxaprop-p-ethyl+clethodim, glyphosate, iodosulfuron-methyl, paraquat, paraquat+diuron, sethoxydim e tepraloxydim. A aplicação ocorreu em plantas mantidas sob temperatura do ar de 20-22 ºC e 30-34 ºC. O controle foi avaliado aos 7, 14, 21 e 28 dias após a aplicação dos tratamentos, atribuindo-se o percentual de 0 a 100 que correspondeu à ausência de injúria e morte das plantas, respectivamente. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey (P=0,05). Em geral, os herbicidas foram mais eficazes em temperatura de 20-22 ºC, sendo que a temperatura de 30-34 ºC prejudicou o controle do azevém. A suscetibilidade aos graminicidas foi dependente do biótipo em aplicação sob temperatura de 30-34 ºC.Universidade do Estado de Santa Catarina2017-06-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.udesc.br/index.php/agroveterinaria/article/view/22381171162201710210.5965/223811711622017102Revista de Ciências Agroveterinárias; Vol. 16 No. 2 (2017); 102-108Revista de Ciências Agroveterinárias; v. 16 n. 2 (2017); 102-1082238-1171reponame:Revista de Ciências Agroveterinárias (Online)instname:Universidade do Estado de Santa Catarina (UDESC)instacron:UDESCporhttps://periodicos.udesc.br/index.php/agroveterinaria/article/view/223811711622017102/pdfPereira, Liese de VargasCarvalho, Leonardo Bianco deDal Magro, Taísainfo:eu-repo/semantics/openAccess2019-12-13T12:05:26Zoai::article/9025Revistahttps://periodicos.udesc.br/index.php/agroveterinaria/PUBhttps://periodicos.udesc.br/index.php/agroveterinaria/oairca.cav@udesc.br | portal.periodicos@udesc.brhttps://doi.org/10.5965/223811712238-11711676-9732opendoar:2019-12-13T12:05:26Revista de Ciências Agroveterinárias (Online) - Universidade do Estado de Santa Catarina (UDESC)false
dc.title.none.fl_str_mv The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying
A eficácia do controle químico varia com o genótipo de azevém e a temperatura do ar no momento da aplicação
title The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying
spellingShingle The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying
Pereira, Liese de Vargas
Lolium multiflorum
herbicides
environmental condition.
Lolium multiflorum
herbicidas
condição ambiental.
title_short The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying
title_full The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying
title_fullStr The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying
title_full_unstemmed The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying
title_sort The efficiency of chemical control varies on the genotype of italian ryegrass and the air temperature at the time of spraying
author Pereira, Liese de Vargas
author_facet Pereira, Liese de Vargas
Carvalho, Leonardo Bianco de
Dal Magro, Taísa
author_role author
author2 Carvalho, Leonardo Bianco de
Dal Magro, Taísa
author2_role author
author
dc.contributor.author.fl_str_mv Pereira, Liese de Vargas
Carvalho, Leonardo Bianco de
Dal Magro, Taísa
dc.subject.por.fl_str_mv Lolium multiflorum
herbicides
environmental condition.
Lolium multiflorum
herbicidas
condição ambiental.
topic Lolium multiflorum
herbicides
environmental condition.
Lolium multiflorum
herbicidas
condição ambiental.
description This work aimed to study alternatives to the chemical management of italian ryegrass (Lolium multiflorum), taking into account environmental and biological factors at the time of herbicide application, as well as the possible differential response among biotypes of the species. The objective of this study was to evaluate the influence of air temperature on the chemical control of two ryegrass biotypes. The experiment was conducted in a greenhouse, in a completely randomized design with four replicates and organized in a 2x2x10 factorial scheme (biotype, temperature and herbicide). One biotype was obtained from an area with annual crops and the other from a perennial crop. The tested herbicides were: clethodim, clodinafop-propargyl, fenoxaprop-p-ethyl+clethodim, glyphosate, iodosulfuron-methyl, paraquat, paraquat+diuron, sethoxydim and tepraloxydim. The application occurred in plants maintained in air temperature of 20-22 °C and 30-34 °C. The control was evaluated at 7, 14, 21 and 28 days after application of the treatments, assigning the percentage of 0 to 100 that corresponded to the absence of injury and death of the plants, respectively. The data was submitted to analysis of variance and the means were compared by the Tukey test (P=0.05). In general, herbicides were more effective at a temperature of 20-22 °C, and the temperature of 30-34 °C impaired ryegrass control. The susceptibility to the grass killers was dependent on the biotype in application under temperature of 30-34 °C.
publishDate 2017
dc.date.none.fl_str_mv 2017-06-13
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://periodicos.udesc.br/index.php/agroveterinaria/article/view/223811711622017102
10.5965/223811711622017102
url https://periodicos.udesc.br/index.php/agroveterinaria/article/view/223811711622017102
identifier_str_mv 10.5965/223811711622017102
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.udesc.br/index.php/agroveterinaria/article/view/223811711622017102/pdf
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 do Estado de Santa Catarina
publisher.none.fl_str_mv Universidade do Estado de Santa Catarina
dc.source.none.fl_str_mv Revista de Ciências Agroveterinárias; Vol. 16 No. 2 (2017); 102-108
Revista de Ciências Agroveterinárias; v. 16 n. 2 (2017); 102-108
2238-1171
reponame:Revista de Ciências Agroveterinárias (Online)
instname:Universidade do Estado de Santa Catarina (UDESC)
instacron:UDESC
instname_str Universidade do Estado de Santa Catarina (UDESC)
instacron_str UDESC
institution UDESC
reponame_str Revista de Ciências Agroveterinárias (Online)
collection Revista de Ciências Agroveterinárias (Online)
repository.name.fl_str_mv Revista de Ciências Agroveterinárias (Online) - Universidade do Estado de Santa Catarina (UDESC)
repository.mail.fl_str_mv rca.cav@udesc.br | portal.periodicos@udesc.br
_version_ 1842261008389767168

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