Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species

Detalhes bibliográficos
Autor(a) principal: Sousa, Bruno Teixeira de
Data de Publicação: 2022
Outros Autores: Pereira, Anderson do Espirito Santo [UNESP], Fraceto, Leonardo Fernandes [UNESP], Oliveira, Halley Caixeta, Dalazen, Giliardi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.heliyon.2022.e09902
http://hdl.handle.net/11449/242074
Resumo: The encapsulation of atrazine into poly(epsilon-caprolactone) nanocapsules has been shown to improve the efficiency of the herbicide and decrease its environmental impacts. In the current work, we evaluated the efficiency of nanoatrazine in the post-emergence control of Alternanthera tenella Colla plants and performed a meta-analysis to compare the results with studies already published with other weeds. The first experiment was carried out in the field, where we observed that nanoatrazine (at 200 g a. i. ha−1) induced higher inhibition of the maximum quantum efficiency of photosystem II (up to 39%) than conventional atrazine at the same concentration. However, nanoencapsulation did not improve the visually-determined weed control by atrazine. To better understand the response of A. tenella plants to nanoatrazine, a second experiment was carried out in a greenhouse with four-leaf stage plants treated with nano and conventional atrazine at 200, 500, 1000, and 2000 g a. i. ha−1. Nanoatrazine showed higher efficiency (up to 33%) than commercial atrazine in inhibiting photosystem II activity at all doses until 48 h after application. Again, weed control and plant dry mass did not differ between formulations. From the meta-analysis, it was observed that A. tenella plants showed a response to nanoatrazine that differs from other target species, as the gain in efficiency resulting from the nanoencapsulation was restricted to the short-term analysis, and did not result in better weed control. These results reinforce that the efficiency of nanoatrazine is dependent on the studied species.
id UNSP_ac7814024260e9d315efc2e0a1ec1290
oai_identifier_str oai:repositorio.unesp.br:11449/242074
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed speciesAtrazineCalico plantMeta-analysisNanoherbicidesWeed controlThe encapsulation of atrazine into poly(epsilon-caprolactone) nanocapsules has been shown to improve the efficiency of the herbicide and decrease its environmental impacts. In the current work, we evaluated the efficiency of nanoatrazine in the post-emergence control of Alternanthera tenella Colla plants and performed a meta-analysis to compare the results with studies already published with other weeds. The first experiment was carried out in the field, where we observed that nanoatrazine (at 200 g a. i. ha−1) induced higher inhibition of the maximum quantum efficiency of photosystem II (up to 39%) than conventional atrazine at the same concentration. However, nanoencapsulation did not improve the visually-determined weed control by atrazine. To better understand the response of A. tenella plants to nanoatrazine, a second experiment was carried out in a greenhouse with four-leaf stage plants treated with nano and conventional atrazine at 200, 500, 1000, and 2000 g a. i. ha−1. Nanoatrazine showed higher efficiency (up to 33%) than commercial atrazine in inhibiting photosystem II activity at all doses until 48 h after application. Again, weed control and plant dry mass did not differ between formulations. From the meta-analysis, it was observed that A. tenella plants showed a response to nanoatrazine that differs from other target species, as the gain in efficiency resulting from the nanoencapsulation was restricted to the short-term analysis, and did not result in better weed control. These results reinforce that the efficiency of nanoatrazine is dependent on the studied species.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Agronomy Londrina State University (UEL), PR 445, km 380Institute of Science and Technology São Paulo State University (UNESP), Av. Três de Março 511Department of Animal and Plant Biology Londrina State University (UEL), PR 445, km 380Institute of Science and Technology São Paulo State University (UNESP), Av. Três de Março 511FAPESP: 2017/21004–5CNPq: 306583/2017–8CNPq: 311034/2020–9Universidade Estadual de Londrina (UEL)Universidade Estadual Paulista (UNESP)Sousa, Bruno Teixeira dePereira, Anderson do Espirito Santo [UNESP]Fraceto, Leonardo Fernandes [UNESP]Oliveira, Halley CaixetaDalazen, Giliardi2023-03-02T08:37:15Z2023-03-02T08:37:15Z2022-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.heliyon.2022.e09902Heliyon, v. 8, n. 7, 2022.2405-8440http://hdl.handle.net/11449/24207410.1016/j.heliyon.2022.e099022-s2.0-85134853238Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengHeliyoninfo:eu-repo/semantics/openAccess2023-03-02T08:37:15Zoai:repositorio.unesp.br:11449/242074Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-02T08:37:15Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
title Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
spellingShingle Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
Sousa, Bruno Teixeira de
Atrazine
Calico plant
Meta-analysis
Nanoherbicides
Weed control
title_short Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
title_full Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
title_fullStr Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
title_full_unstemmed Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
title_sort Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
author Sousa, Bruno Teixeira de
author_facet Sousa, Bruno Teixeira de
Pereira, Anderson do Espirito Santo [UNESP]
Fraceto, Leonardo Fernandes [UNESP]
Oliveira, Halley Caixeta
Dalazen, Giliardi
author_role author
author2 Pereira, Anderson do Espirito Santo [UNESP]
Fraceto, Leonardo Fernandes [UNESP]
Oliveira, Halley Caixeta
Dalazen, Giliardi
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual de Londrina (UEL)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Sousa, Bruno Teixeira de
Pereira, Anderson do Espirito Santo [UNESP]
Fraceto, Leonardo Fernandes [UNESP]
Oliveira, Halley Caixeta
Dalazen, Giliardi
dc.subject.por.fl_str_mv Atrazine
Calico plant
Meta-analysis
Nanoherbicides
Weed control
topic Atrazine
Calico plant
Meta-analysis
Nanoherbicides
Weed control
description The encapsulation of atrazine into poly(epsilon-caprolactone) nanocapsules has been shown to improve the efficiency of the herbicide and decrease its environmental impacts. In the current work, we evaluated the efficiency of nanoatrazine in the post-emergence control of Alternanthera tenella Colla plants and performed a meta-analysis to compare the results with studies already published with other weeds. The first experiment was carried out in the field, where we observed that nanoatrazine (at 200 g a. i. ha−1) induced higher inhibition of the maximum quantum efficiency of photosystem II (up to 39%) than conventional atrazine at the same concentration. However, nanoencapsulation did not improve the visually-determined weed control by atrazine. To better understand the response of A. tenella plants to nanoatrazine, a second experiment was carried out in a greenhouse with four-leaf stage plants treated with nano and conventional atrazine at 200, 500, 1000, and 2000 g a. i. ha−1. Nanoatrazine showed higher efficiency (up to 33%) than commercial atrazine in inhibiting photosystem II activity at all doses until 48 h after application. Again, weed control and plant dry mass did not differ between formulations. From the meta-analysis, it was observed that A. tenella plants showed a response to nanoatrazine that differs from other target species, as the gain in efficiency resulting from the nanoencapsulation was restricted to the short-term analysis, and did not result in better weed control. These results reinforce that the efficiency of nanoatrazine is dependent on the studied species.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-01
2023-03-02T08:37:15Z
2023-03-02T08:37:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.heliyon.2022.e09902
Heliyon, v. 8, n. 7, 2022.
2405-8440
http://hdl.handle.net/11449/242074
10.1016/j.heliyon.2022.e09902
2-s2.0-85134853238
url http://dx.doi.org/10.1016/j.heliyon.2022.e09902
http://hdl.handle.net/11449/242074
identifier_str_mv Heliyon, v. 8, n. 7, 2022.
2405-8440
10.1016/j.heliyon.2022.e09902
2-s2.0-85134853238
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Heliyon
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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
_version_ 1799965467871281152