Sowing depth and light intensity on the emergence and development of weeds
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5935/1806-6690.20220008 http://hdl.handle.net/11449/230036 |
Resumo: | Weeds are one of the ecological factors that directly affect agricultural costs. Thus, understanding the emergence and development of these species is essential for the decision-making on weed control strategies. This study aims to evaluate the effect of different sowing depths and luminous intensities under field conditions on the emergence and development of the Acanthospermum australe (Loefl.) Kuntze and Ipomoea grandifolia (Dammer) O’Donell. Each species constituted one experiment, and the completely randomized design with four repetitions was adopted. The treatments were arranged in a 6 x 4 factorial scheme, with six sowing depths (0.5; 1.0; 2.0; 4.0; 8.0; and 12.0 cm) associated with four luminous intensities (100%, 70%, 50%, and 30% sunlight) obtained using shade cloths. The emergence of seedlings was evaluated daily to obtain the emergence and the emergence speed index. Plant height(length), the period until flower induction, and the dry matter of plants during flowering were also analyzed. A. australe and I. grandifolia emerge under the luminous intensities of 100, 70, 50, and 30% of solar radiation and in sowings depths up to 12.0 cm. Nevertheless, A. australe is the only one affected by luminous intensity, sowing depth, and the interaction between both factors in all the analyzes conducted. Luminous intensity reduction leads to lower development of I. grandifolia. |
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Sowing depth and light intensity on the emergence and development of weedsProfundidade de semeadura e intensidade luminosa na emergência e desenvolvimento de espécies de plantas daninhasAcanthospermum australeIpomoea grandifoliaLuminosityShadingSolar radiationWeeds are one of the ecological factors that directly affect agricultural costs. Thus, understanding the emergence and development of these species is essential for the decision-making on weed control strategies. This study aims to evaluate the effect of different sowing depths and luminous intensities under field conditions on the emergence and development of the Acanthospermum australe (Loefl.) Kuntze and Ipomoea grandifolia (Dammer) O’Donell. Each species constituted one experiment, and the completely randomized design with four repetitions was adopted. The treatments were arranged in a 6 x 4 factorial scheme, with six sowing depths (0.5; 1.0; 2.0; 4.0; 8.0; and 12.0 cm) associated with four luminous intensities (100%, 70%, 50%, and 30% sunlight) obtained using shade cloths. The emergence of seedlings was evaluated daily to obtain the emergence and the emergence speed index. Plant height(length), the period until flower induction, and the dry matter of plants during flowering were also analyzed. A. australe and I. grandifolia emerge under the luminous intensities of 100, 70, 50, and 30% of solar radiation and in sowings depths up to 12.0 cm. Nevertheless, A. australe is the only one affected by luminous intensity, sowing depth, and the interaction between both factors in all the analyzes conducted. Luminous intensity reduction leads to lower development of I. grandifolia.Faculdade de Ciências Agronômicas Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Programa de Pós Graduação em Agronomia (Produção Vegetal) Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Faculdade de Tecnologia de Capão BonitoUniversidade Federal de Mato Grosso/UFMT, Campus do AraguaiaFaculdade de Ciências Agronômicas Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Programa de Pós Graduação em Agronomia (Produção Vegetal) Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Universidade Estadual Paulista (UNESP)Faculdade de Tecnologia de Capão BonitoUniversidade Federal de Mato Grosso/UFMTSouza, Guilherme Sasso Ferreira [UNESP]Marques, Ricardo Fagundes [UNESP]Pereira, Maria Renata Rochade Marchi, Sidnei RobertoMartins, Dagoberto [UNESP]2022-04-29T08:37:17Z2022-04-29T08:37:17Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.5935/1806-6690.20220008Revista Ciencia Agronomica, v. 53.1806-66900045-6888http://hdl.handle.net/11449/23003610.5935/1806-6690.202200082-s2.0-85120962419Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporRevista Ciencia Agronomicainfo:eu-repo/semantics/openAccess2024-06-07T13:56:41Zoai:repositorio.unesp.br:11449/230036Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-07T13:56:41Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Sowing depth and light intensity on the emergence and development of weeds Profundidade de semeadura e intensidade luminosa na emergência e desenvolvimento de espécies de plantas daninhas |
title |
Sowing depth and light intensity on the emergence and development of weeds |
spellingShingle |
Sowing depth and light intensity on the emergence and development of weeds Souza, Guilherme Sasso Ferreira [UNESP] Acanthospermum australe Ipomoea grandifolia Luminosity Shading Solar radiation |
title_short |
Sowing depth and light intensity on the emergence and development of weeds |
title_full |
Sowing depth and light intensity on the emergence and development of weeds |
title_fullStr |
Sowing depth and light intensity on the emergence and development of weeds |
title_full_unstemmed |
Sowing depth and light intensity on the emergence and development of weeds |
title_sort |
Sowing depth and light intensity on the emergence and development of weeds |
author |
Souza, Guilherme Sasso Ferreira [UNESP] |
author_facet |
Souza, Guilherme Sasso Ferreira [UNESP] Marques, Ricardo Fagundes [UNESP] Pereira, Maria Renata Rocha de Marchi, Sidnei Roberto Martins, Dagoberto [UNESP] |
author_role |
author |
author2 |
Marques, Ricardo Fagundes [UNESP] Pereira, Maria Renata Rocha de Marchi, Sidnei Roberto Martins, Dagoberto [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Faculdade de Tecnologia de Capão Bonito Universidade Federal de Mato Grosso/UFMT |
dc.contributor.author.fl_str_mv |
Souza, Guilherme Sasso Ferreira [UNESP] Marques, Ricardo Fagundes [UNESP] Pereira, Maria Renata Rocha de Marchi, Sidnei Roberto Martins, Dagoberto [UNESP] |
dc.subject.por.fl_str_mv |
Acanthospermum australe Ipomoea grandifolia Luminosity Shading Solar radiation |
topic |
Acanthospermum australe Ipomoea grandifolia Luminosity Shading Solar radiation |
description |
Weeds are one of the ecological factors that directly affect agricultural costs. Thus, understanding the emergence and development of these species is essential for the decision-making on weed control strategies. This study aims to evaluate the effect of different sowing depths and luminous intensities under field conditions on the emergence and development of the Acanthospermum australe (Loefl.) Kuntze and Ipomoea grandifolia (Dammer) O’Donell. Each species constituted one experiment, and the completely randomized design with four repetitions was adopted. The treatments were arranged in a 6 x 4 factorial scheme, with six sowing depths (0.5; 1.0; 2.0; 4.0; 8.0; and 12.0 cm) associated with four luminous intensities (100%, 70%, 50%, and 30% sunlight) obtained using shade cloths. The emergence of seedlings was evaluated daily to obtain the emergence and the emergence speed index. Plant height(length), the period until flower induction, and the dry matter of plants during flowering were also analyzed. A. australe and I. grandifolia emerge under the luminous intensities of 100, 70, 50, and 30% of solar radiation and in sowings depths up to 12.0 cm. Nevertheless, A. australe is the only one affected by luminous intensity, sowing depth, and the interaction between both factors in all the analyzes conducted. Luminous intensity reduction leads to lower development of I. grandifolia. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-29T08:37:17Z 2022-04-29T08:37:17Z 2022-01-01 |
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/10.5935/1806-6690.20220008 Revista Ciencia Agronomica, v. 53. 1806-6690 0045-6888 http://hdl.handle.net/11449/230036 10.5935/1806-6690.20220008 2-s2.0-85120962419 |
url |
http://dx.doi.org/10.5935/1806-6690.20220008 http://hdl.handle.net/11449/230036 |
identifier_str_mv |
Revista Ciencia Agronomica, v. 53. 1806-6690 0045-6888 10.5935/1806-6690.20220008 2-s2.0-85120962419 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
Revista Ciencia Agronomica |
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 |
|
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1803649990798606336 |