Post-emergence herbicidal activity of nanoatrazine against Alternanthera tenella Colla plants compared to other weed species
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
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. |
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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:29462024-08-05T21:46:50.418264Repositório 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_ |
1808129356933890048 |