Emergence and development of weeds according to the sowing depth and light intensity
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/10727 |
Resumo: | Understanding weed emergence and development aspects is essential in decision-making for management strategies. The study evaluated the effects of different sowing depths and light intensities on the emergence and development of the weeds Sida rhombifolia and Senna obtusifolia under field conditions. Each species constituted an experiment, and the experimental design used was completely randomized, with four replications. The treatments were arranged in a 6 x 4 factorial scheme, with the first factor corresponding to the six sowing depths (0.5; 1.0; 2.0; 4.0; 8.0, and 12.0 cm) and the second at four light intensities (100%, 70%, 50%, and 30% of sunlight). The seedling emergence was evaluated daily to obtain the emergence and emergence speed index. The height, time to floral induction, and dry matter of plants at flowering were also evaluated. When submitted to different levels of shading, S. rhombifolia seedlings emerge up to 12.0 cm deep. S. obtusifolia seedlings emerge at all sowing depths, even when subjected to different solar radiation intensities. Seedlings of S. rhombifolia and S. obtusifolia emerge less and slower in sowings between 8.0 and 12.0 cm depth and develop better under full sunlight in sowings between 1.0 and 4.0 cm depth. Therefore, greater depths delay the development of both species, which is important information for managing these weeds. |
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Emergence and development of weeds according to the sowing depth and light intensityEmergência e desenvolvimento de plantas daninhas em função da profundidade de semeadura e intensidade luminosaSida rhombifolia. Senna obtusifolia. Sombreamento. Luminosidade. Radiação solar.Sida rhombifolia. Senna obtusifolia. Shading. Luminosity. Solar radiation.Understanding weed emergence and development aspects is essential in decision-making for management strategies. The study evaluated the effects of different sowing depths and light intensities on the emergence and development of the weeds Sida rhombifolia and Senna obtusifolia under field conditions. Each species constituted an experiment, and the experimental design used was completely randomized, with four replications. The treatments were arranged in a 6 x 4 factorial scheme, with the first factor corresponding to the six sowing depths (0.5; 1.0; 2.0; 4.0; 8.0, and 12.0 cm) and the second at four light intensities (100%, 70%, 50%, and 30% of sunlight). The seedling emergence was evaluated daily to obtain the emergence and emergence speed index. The height, time to floral induction, and dry matter of plants at flowering were also evaluated. When submitted to different levels of shading, S. rhombifolia seedlings emerge up to 12.0 cm deep. S. obtusifolia seedlings emerge at all sowing depths, even when subjected to different solar radiation intensities. Seedlings of S. rhombifolia and S. obtusifolia emerge less and slower in sowings between 8.0 and 12.0 cm depth and develop better under full sunlight in sowings between 1.0 and 4.0 cm depth. Therefore, greater depths delay the development of both species, which is important information for managing these weeds.Compreender os aspectos de emergência e desenvolvimento de plantas daninhas é essencial na tomada de decisão para estratégias de manejo. Neste trabalho foram avaliados em condições de campo, os efeitos de diferentes profundidades de semeadura e intensidades luminosas na emergência e no desenvolvimento das plantas daninhas Sida rhombifolia e Senna obtusifolia. Cada espécie constituiu um experimento e o delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições. Os tratamentos foram dispostos em esquema fatorial 6 x 4, sendo o primeiro fator correspondente as seis profundidades de semeadura (0,5; 1,0; 2,0; 4,0; 8,0 e 12,0 cm) e o segundo a quatro intensidades luminosas (100%, 70%, 50% e 30% da luz solar). Avaliou-se diariamente a emergência das plântulas para obtenção da emergência e do índice de velocidade de emergência. A altura, o tempo até a indução floral e a matéria seca das plantas no florescimento também foram avaliadas. Quando submetidas a diferentes níveis de sombreamento as plântulas de S. rhombifolia emergem em até 12,0 cm de profundidade. As plântulas de S. obtusifolia emergem em todas as profundidades de semeadura, mesmo quando submetidas a diferentes intensidades de radiação solar. As plântulas das espécies S. rhombifolia e S. obtusifolia emergem menos e em menor velocidade em semeaduras entre 8,0 e 12,0 cm de profundidade e se desenvolvem melhor em condições de luz solar plena em semeaduras entre 1,0 e 4,0 cm de profundidade. Portanto, maiores profundidades atrasam o desenvolvimento de ambas as espécies, sendo uma importante informação para o manejo dessas plantas daninhas.Universidade Federal Rural do Semi-Árido2023-07-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/1072710.1590/1983-21252023v36n303rcREVISTA CAATINGA; Vol. 36 No. 3 (2023); 502-512Revista Caatinga; v. 36 n. 3 (2023); 502-5121983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/10727/11277Copyright (c) 2023 Revista Caatingainfo:eu-repo/semantics/openAccessMarques, Ricardo FagundesSouza, Guilherme Sasso FerreiraMartins, Cibele Chalita Marchi, Sidnei Roberto deMartins, Dagoberto2023-07-18T12:28:05Zoai:ojs.periodicos.ufersa.edu.br:article/10727Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:58.155494Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
Emergence and development of weeds according to the sowing depth and light intensity Emergência e desenvolvimento de plantas daninhas em função da profundidade de semeadura e intensidade luminosa |
title |
Emergence and development of weeds according to the sowing depth and light intensity |
spellingShingle |
Emergence and development of weeds according to the sowing depth and light intensity Marques, Ricardo Fagundes Sida rhombifolia. Senna obtusifolia. Sombreamento. Luminosidade. Radiação solar. Sida rhombifolia. Senna obtusifolia. Shading. Luminosity. Solar radiation. |
title_short |
Emergence and development of weeds according to the sowing depth and light intensity |
title_full |
Emergence and development of weeds according to the sowing depth and light intensity |
title_fullStr |
Emergence and development of weeds according to the sowing depth and light intensity |
title_full_unstemmed |
Emergence and development of weeds according to the sowing depth and light intensity |
title_sort |
Emergence and development of weeds according to the sowing depth and light intensity |
author |
Marques, Ricardo Fagundes |
author_facet |
Marques, Ricardo Fagundes Souza, Guilherme Sasso Ferreira Martins, Cibele Chalita Marchi, Sidnei Roberto de Martins, Dagoberto |
author_role |
author |
author2 |
Souza, Guilherme Sasso Ferreira Martins, Cibele Chalita Marchi, Sidnei Roberto de Martins, Dagoberto |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Marques, Ricardo Fagundes Souza, Guilherme Sasso Ferreira Martins, Cibele Chalita Marchi, Sidnei Roberto de Martins, Dagoberto |
dc.subject.por.fl_str_mv |
Sida rhombifolia. Senna obtusifolia. Sombreamento. Luminosidade. Radiação solar. Sida rhombifolia. Senna obtusifolia. Shading. Luminosity. Solar radiation. |
topic |
Sida rhombifolia. Senna obtusifolia. Sombreamento. Luminosidade. Radiação solar. Sida rhombifolia. Senna obtusifolia. Shading. Luminosity. Solar radiation. |
description |
Understanding weed emergence and development aspects is essential in decision-making for management strategies. The study evaluated the effects of different sowing depths and light intensities on the emergence and development of the weeds Sida rhombifolia and Senna obtusifolia under field conditions. Each species constituted an experiment, and the experimental design used was completely randomized, with four replications. The treatments were arranged in a 6 x 4 factorial scheme, with the first factor corresponding to the six sowing depths (0.5; 1.0; 2.0; 4.0; 8.0, and 12.0 cm) and the second at four light intensities (100%, 70%, 50%, and 30% of sunlight). The seedling emergence was evaluated daily to obtain the emergence and emergence speed index. The height, time to floral induction, and dry matter of plants at flowering were also evaluated. When submitted to different levels of shading, S. rhombifolia seedlings emerge up to 12.0 cm deep. S. obtusifolia seedlings emerge at all sowing depths, even when subjected to different solar radiation intensities. Seedlings of S. rhombifolia and S. obtusifolia emerge less and slower in sowings between 8.0 and 12.0 cm depth and develop better under full sunlight in sowings between 1.0 and 4.0 cm depth. Therefore, greater depths delay the development of both species, which is important information for managing these weeds. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-18 |
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.ufersa.edu.br/caatinga/article/view/10727 10.1590/1983-21252023v36n303rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/10727 |
identifier_str_mv |
10.1590/1983-21252023v36n303rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/10727/11277 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 36 No. 3 (2023); 502-512 Revista Caatinga; v. 36 n. 3 (2023); 502-512 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
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1797674029553811456 |