Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.

Detalhes bibliográficos
Autor(a) principal: Queiroz, J. R G [UNESP]
Data de Publicação: 2013
Outros Autores: Romani, G. N. [UNESP], Carvalho, F. T. [UNESP], Pivetta, K. F L [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.actahort.org/books/1000/1000_34.htm
http://hdl.handle.net/11449/75971
Resumo: One of the major problems in landscaping in tropics is weed management. The herbaceous ornamental plant, Tagetes erecta L. (Asteraceae), is very popular for its beautiful flowers which can be used in landscape and also as cut flowers. The increase use of this plant and lack of selective herbicides led to the objective of this study to evaluate the herbicide metribuzin selectivity for this ornamental plant. The experimental design was completely randomized using four treatments (herbicide metribuzin doses: 0, 0.5, 1.0 and 1.5 L ha-1, equivalent to 0, 240, 480 and 720 g ha-1) and five replicates. The herbicide was applied over the seedling of T. erecta as pre-emergence of the weed seeds. Evaluations were performed at 7, 14, 21 and 28 days after application (DAA) by visual analysis of the toxicity symptoms over the ornamental, using the European Weed Research Council (EWRC) scale (1 to 9), where 1 is the total absence of symptoms and 9 to death plants. Polynomial regression statistical analysis was used. It was verified that, from the dose of 1.0 L ha-1, T. erecta plants died by 14 DAA, which the most of them had presented a very strong toxicity symptom; for the 0.5 L ha-1 treatment the plants had survived until 28 DAA. However, most of them already exhibited the high toxicity level, dying at 35 DAA. Thus, metribuzin was not suitable for T. erecta even at the lowest rate tested in this study.
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spelling Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.FloricultureMarigoldOrnamental cropsPhytotoxicityWeed controlOne of the major problems in landscaping in tropics is weed management. The herbaceous ornamental plant, Tagetes erecta L. (Asteraceae), is very popular for its beautiful flowers which can be used in landscape and also as cut flowers. The increase use of this plant and lack of selective herbicides led to the objective of this study to evaluate the herbicide metribuzin selectivity for this ornamental plant. The experimental design was completely randomized using four treatments (herbicide metribuzin doses: 0, 0.5, 1.0 and 1.5 L ha-1, equivalent to 0, 240, 480 and 720 g ha-1) and five replicates. The herbicide was applied over the seedling of T. erecta as pre-emergence of the weed seeds. Evaluations were performed at 7, 14, 21 and 28 days after application (DAA) by visual analysis of the toxicity symptoms over the ornamental, using the European Weed Research Council (EWRC) scale (1 to 9), where 1 is the total absence of symptoms and 9 to death plants. Polynomial regression statistical analysis was used. It was verified that, from the dose of 1.0 L ha-1, T. erecta plants died by 14 DAA, which the most of them had presented a very strong toxicity symptom; for the 0.5 L ha-1 treatment the plants had survived until 28 DAA. However, most of them already exhibited the high toxicity level, dying at 35 DAA. Thus, metribuzin was not suitable for T. erecta even at the lowest rate tested in this study.Departamento de Produção Vegetal Universidade Estadual Paulista UNESP/FCAV, Jaboticabal, São Paulo StateDepartamento de Produção Vegetal Universidade Estadual Paulista UNESP/FCAV, Jaboticabal, São Paulo StateUniversidade Estadual Paulista (Unesp)Queiroz, J. R G [UNESP]Romani, G. N. [UNESP]Carvalho, F. T. [UNESP]Pivetta, K. F L [UNESP]2014-05-27T11:29:57Z2014-05-27T11:29:57Z2013-07-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject257-260http://www.actahort.org/books/1000/1000_34.htmActa Horticulturae, v. 1000, p. 257-260.0567-7572http://hdl.handle.net/11449/75971WOS:0003337383000342-s2.0-848830449242212648941159028Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Horticulturae0,198info:eu-repo/semantics/openAccess2024-06-07T13:58:08Zoai:repositorio.unesp.br:11449/75971Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:23:05.144865Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.
title Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.
spellingShingle Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.
Queiroz, J. R G [UNESP]
Floriculture
Marigold
Ornamental crops
Phytotoxicity
Weed control
title_short Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.
title_full Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.
title_fullStr Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.
title_full_unstemmed Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.
title_sort Herbicide selectivity in herbaceous ornamental gardens of tagetes erecta L.
author Queiroz, J. R G [UNESP]
author_facet Queiroz, J. R G [UNESP]
Romani, G. N. [UNESP]
Carvalho, F. T. [UNESP]
Pivetta, K. F L [UNESP]
author_role author
author2 Romani, G. N. [UNESP]
Carvalho, F. T. [UNESP]
Pivetta, K. F L [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Queiroz, J. R G [UNESP]
Romani, G. N. [UNESP]
Carvalho, F. T. [UNESP]
Pivetta, K. F L [UNESP]
dc.subject.por.fl_str_mv Floriculture
Marigold
Ornamental crops
Phytotoxicity
Weed control
topic Floriculture
Marigold
Ornamental crops
Phytotoxicity
Weed control
description One of the major problems in landscaping in tropics is weed management. The herbaceous ornamental plant, Tagetes erecta L. (Asteraceae), is very popular for its beautiful flowers which can be used in landscape and also as cut flowers. The increase use of this plant and lack of selective herbicides led to the objective of this study to evaluate the herbicide metribuzin selectivity for this ornamental plant. The experimental design was completely randomized using four treatments (herbicide metribuzin doses: 0, 0.5, 1.0 and 1.5 L ha-1, equivalent to 0, 240, 480 and 720 g ha-1) and five replicates. The herbicide was applied over the seedling of T. erecta as pre-emergence of the weed seeds. Evaluations were performed at 7, 14, 21 and 28 days after application (DAA) by visual analysis of the toxicity symptoms over the ornamental, using the European Weed Research Council (EWRC) scale (1 to 9), where 1 is the total absence of symptoms and 9 to death plants. Polynomial regression statistical analysis was used. It was verified that, from the dose of 1.0 L ha-1, T. erecta plants died by 14 DAA, which the most of them had presented a very strong toxicity symptom; for the 0.5 L ha-1 treatment the plants had survived until 28 DAA. However, most of them already exhibited the high toxicity level, dying at 35 DAA. Thus, metribuzin was not suitable for T. erecta even at the lowest rate tested in this study.
publishDate 2013
dc.date.none.fl_str_mv 2013-07-15
2014-05-27T11:29:57Z
2014-05-27T11:29:57Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.actahort.org/books/1000/1000_34.htm
Acta Horticulturae, v. 1000, p. 257-260.
0567-7572
http://hdl.handle.net/11449/75971
WOS:000333738300034
2-s2.0-84883044924
2212648941159028
url http://www.actahort.org/books/1000/1000_34.htm
http://hdl.handle.net/11449/75971
identifier_str_mv Acta Horticulturae, v. 1000, p. 257-260.
0567-7572
WOS:000333738300034
2-s2.0-84883044924
2212648941159028
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Acta Horticulturae
0,198
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 257-260
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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