Shoot regrowth potential and root development of Digitaria insularis subjected to mowing

Detalhes bibliográficos
Autor(a) principal: Gritti, Everton Bruno
Data de Publicação: 2024
Outros Autores: Bittencourt, Henrique von Hertwig, Bonome, Lisandro Tomas da Silva
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista Verde de Agroecologia e Desenvolvimento Sustentavel
Texto Completo: https://www.gvaa.com.br/revista/index.php/RVADS/article/view/10113
Resumo: Digitaria insularis is a Poaceae disseminated mainly by seeds that can cause problems in agroecosystems. The objective of this work was to evaluate the influence of the age of D. insularis submitted to mowing on morphophysiological characteristics. Plants were grown in a greenhouse and cut close to the substrate at 21, 35, 49 and 77 days after emergence (DAE) or uncut, with evaluation of the variables up to 105 DAE. Except for chlorophyll b, the other variables were influenced by the age of the plants when cutting (p<0.05). Plant height and number of leaves decreased with increasing cutting age. The highest chlorophyll a content was observed in the cut at 51 DAE. Epicuticular wax mass was greater in the 49 DAE (0.4 mg cm-2) cut. The shoot dry mass decreased with increasing age at the cut, reaching zero (0 g) after 54 DAE. The root dry mass reached the minimum point when the aerial part was cut at 57 DAE. Shoot water content decreased with increasing cutting age. The root water content showed a biphasic behavior, with the lowest water content (18.8%) in the cut at 49 DAE. These results suggest that mowing close to 21 DAE favors the development of D. insularis. Therefore, D. insularis plants in optimal development conditions should be managed by mowing priority between 49 and 60 DAE.
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spelling Shoot regrowth potential and root development of Digitaria insularis subjected to mowingRecrecimiento de brotes y desarrollo de raíces de Digitaria insularis sometida a corteRebrote de parte aérea e desenvolvimento radicular de Digitaria insularis submetida ao roço Ecologia de planta espontâneaManejo de planta espontâneaCapim-amargosoManejo orgânicoWeed ecologyWeed managementSourgrassOrganic managementEcología de malezasManejo de malezasPasto amargoManejo organicoDigitaria insularis is a Poaceae disseminated mainly by seeds that can cause problems in agroecosystems. The objective of this work was to evaluate the influence of the age of D. insularis submitted to mowing on morphophysiological characteristics. Plants were grown in a greenhouse and cut close to the substrate at 21, 35, 49 and 77 days after emergence (DAE) or uncut, with evaluation of the variables up to 105 DAE. Except for chlorophyll b, the other variables were influenced by the age of the plants when cutting (p<0.05). Plant height and number of leaves decreased with increasing cutting age. The highest chlorophyll a content was observed in the cut at 51 DAE. Epicuticular wax mass was greater in the 49 DAE (0.4 mg cm-2) cut. The shoot dry mass decreased with increasing age at the cut, reaching zero (0 g) after 54 DAE. The root dry mass reached the minimum point when the aerial part was cut at 57 DAE. Shoot water content decreased with increasing cutting age. The root water content showed a biphasic behavior, with the lowest water content (18.8%) in the cut at 49 DAE. These results suggest that mowing close to 21 DAE favors the development of D. insularis. Therefore, D. insularis plants in optimal development conditions should be managed by mowing priority between 49 and 60 DAE.Digitaria insularis es una Poaceae diseminada principalmente por semillas que puede causar problemas en los agroecosistemas. El objetivo de este trabajo fue evaluar la influencia de la edad de D. insularis sometida a siega sobre las características morfofisiológicas. Las plantas se cultivaron en invernadero y se cortaron cerca del sustrato a los 21, 35, 49 y 77 días después de la emergencia (DDE) o no fueran cortadas, con evaluación de las variables hasta los 105 DDE. A excepción de la clorofila b, las demás variables estuvieron influenciadas por la edad de las plantas en el corte (p<0.05). La altura de la planta y el número de hojas disminuyeron al aumentar la edad de corte. El mayor contenido de clorofila a se observó en el corte a los 51 DDE. La masa de cera epicuticular fue mayor en el corte de 49 DDE (0.4 mg cm-2). La masa seca de los brotes disminuyó con el aumento de la edad en el corte, llegando a cero (0 g) después de 54 DDE. La masa seca de raíces alcanzó el punto mínimo cuando se cortó la parte aérea a los 57 DDE. El contenido de agua de los brotes disminuyó al aumentar la edad de corte. El contenido de agua radicular mostró un comportamiento bifásico, siendo el menor contenido de agua (18.8%) en el corte a los 49 DDE. Estos resultados sugieren que cortar cerca de los 21 DDE favorece el desarrollo de D. insularis. Por lo tanto, las plantas de D. insularis en condiciones óptimas de desarrollo deben manejarse con corte prioritario entre los 49 y 60 DAE.Digitaria insularis é uma Poaceae disseminada majoritariamente por sementes que pode ocasionar problemas em agroecossistemas. O objetivo deste trabalho foi avaliar a influência da idade de D. insularis submetida a roçada sobre características morfofisiológicas. Plantas foram cultivadas em casa de vegetação e cortadas rente ao substrato aos 21, 35, 49 e 77 dias após a emergência (DAE) ou não cortadas, com avaliação das variáveis até 105 DAE. Com exceção da clorofila b, as demais variáveis foram influenciadas pela idade das plantas no corte (p<0,05). A estatura das plantas e o número de folhas diminuiu com o aumento da idade no corte. O maior teor de clorofila a foi observado no corte aos 51 DAE. A massa de cera epicuticular foi maior no corte aos 49 DAE (0,4 mg cm-2). A massa seca de parte aérea diminuiu com o aumento da idade no corte, zerando (0 g) a partir dos 54 DAE. A massa seca de raiz atingiu ponto mínimo quando a parte aérea foi cortada aos 57 DAE. O teor de água de parte aérea diminuiu com o aumento da idade no corte. O teor de água da raiz apresentou comportamento bifásico, com o menor teor de água (18,8%) no corte aos 49 DAE. Estes resultados sugerem que a roçada próxima aos 21 DAE favorece o desenvolvimento de D. insularis. Portando, plantas de D. insularis em condições ótimas de desenvolvimento devem ser manejadas com roçada prioritariamente entre os 49 e 60 DAE.Editora Verde2024-02-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.gvaa.com.br/revista/index.php/RVADS/article/view/1011310.18378/rvads.v19i1.10113Revista Verde de Agroecologia e Desenvolvimento Sustentável; Vol. 19 No. 1 (2024); 45-51Revista Verde de Agroecologia e Desenvolvimento Sustentável; Vol. 19 Núm. 1 (2024); 45-51Revista Verde de Agroecologia e Desenvolvimento Sustentável; v. 19 n. 1 (2024); 45-511981-8203reponame:Revista Verde de Agroecologia e Desenvolvimento Sustentavelinstname:Grupo Verde de Agroecologia e Abelhas (GVAA)instacron:GVAAporhttps://www.gvaa.com.br/revista/index.php/RVADS/article/view/10113/12272Copyright (c) 2024 Everton Bruno Gritti et al.https://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessGritti, Everton BrunoBittencourt, Henrique von HertwigBonome, Lisandro Tomas da Silva2024-02-14T13:38:28Zoai:ojs.gvaa.com.br:article/10113Revistahttps://www.gvaa.com.br/revista/index.php/RVADS/PUBhttps://www.gvaa.com.br/revista/index.php/RVADS/oairvadsgvaa@gmail.com || patriciomaracaja@gmail.com || revistaverde1@gmail.com || suporte@antsoft.com.br1981-82031981-8203opendoar:2024-03-06T12:59:51.031773Revista Verde de Agroecologia e Desenvolvimento Sustentavel - Grupo Verde de Agroecologia e Abelhas (GVAA)false
dc.title.none.fl_str_mv Shoot regrowth potential and root development of Digitaria insularis subjected to mowing
Recrecimiento de brotes y desarrollo de raíces de Digitaria insularis sometida a corte
Rebrote de parte aérea e desenvolvimento radicular de Digitaria insularis submetida ao roço
title Shoot regrowth potential and root development of Digitaria insularis subjected to mowing
spellingShingle Shoot regrowth potential and root development of Digitaria insularis subjected to mowing
Gritti, Everton Bruno
Ecologia de planta espontânea
Manejo de planta espontânea
Capim-amargoso
Manejo orgânico
Weed ecology
Weed management
Sourgrass
Organic management
Ecología de malezas
Manejo de malezas
Pasto amargo
Manejo organico
title_short Shoot regrowth potential and root development of Digitaria insularis subjected to mowing
title_full Shoot regrowth potential and root development of Digitaria insularis subjected to mowing
title_fullStr Shoot regrowth potential and root development of Digitaria insularis subjected to mowing
title_full_unstemmed Shoot regrowth potential and root development of Digitaria insularis subjected to mowing
title_sort Shoot regrowth potential and root development of Digitaria insularis subjected to mowing
author Gritti, Everton Bruno
author_facet Gritti, Everton Bruno
Bittencourt, Henrique von Hertwig
Bonome, Lisandro Tomas da Silva
author_role author
author2 Bittencourt, Henrique von Hertwig
Bonome, Lisandro Tomas da Silva
author2_role author
author
dc.contributor.author.fl_str_mv Gritti, Everton Bruno
Bittencourt, Henrique von Hertwig
Bonome, Lisandro Tomas da Silva
dc.subject.por.fl_str_mv Ecologia de planta espontânea
Manejo de planta espontânea
Capim-amargoso
Manejo orgânico
Weed ecology
Weed management
Sourgrass
Organic management
Ecología de malezas
Manejo de malezas
Pasto amargo
Manejo organico
topic Ecologia de planta espontânea
Manejo de planta espontânea
Capim-amargoso
Manejo orgânico
Weed ecology
Weed management
Sourgrass
Organic management
Ecología de malezas
Manejo de malezas
Pasto amargo
Manejo organico
description Digitaria insularis is a Poaceae disseminated mainly by seeds that can cause problems in agroecosystems. The objective of this work was to evaluate the influence of the age of D. insularis submitted to mowing on morphophysiological characteristics. Plants were grown in a greenhouse and cut close to the substrate at 21, 35, 49 and 77 days after emergence (DAE) or uncut, with evaluation of the variables up to 105 DAE. Except for chlorophyll b, the other variables were influenced by the age of the plants when cutting (p<0.05). Plant height and number of leaves decreased with increasing cutting age. The highest chlorophyll a content was observed in the cut at 51 DAE. Epicuticular wax mass was greater in the 49 DAE (0.4 mg cm-2) cut. The shoot dry mass decreased with increasing age at the cut, reaching zero (0 g) after 54 DAE. The root dry mass reached the minimum point when the aerial part was cut at 57 DAE. Shoot water content decreased with increasing cutting age. The root water content showed a biphasic behavior, with the lowest water content (18.8%) in the cut at 49 DAE. These results suggest that mowing close to 21 DAE favors the development of D. insularis. Therefore, D. insularis plants in optimal development conditions should be managed by mowing priority between 49 and 60 DAE.
publishDate 2024
dc.date.none.fl_str_mv 2024-02-12
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://www.gvaa.com.br/revista/index.php/RVADS/article/view/10113
10.18378/rvads.v19i1.10113
url https://www.gvaa.com.br/revista/index.php/RVADS/article/view/10113
identifier_str_mv 10.18378/rvads.v19i1.10113
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.gvaa.com.br/revista/index.php/RVADS/article/view/10113/12272
dc.rights.driver.fl_str_mv Copyright (c) 2024 Everton Bruno Gritti et al.
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2024 Everton Bruno Gritti et al.
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editora Verde
publisher.none.fl_str_mv Editora Verde
dc.source.none.fl_str_mv Revista Verde de Agroecologia e Desenvolvimento Sustentável; Vol. 19 No. 1 (2024); 45-51
Revista Verde de Agroecologia e Desenvolvimento Sustentável; Vol. 19 Núm. 1 (2024); 45-51
Revista Verde de Agroecologia e Desenvolvimento Sustentável; v. 19 n. 1 (2024); 45-51
1981-8203
reponame:Revista Verde de Agroecologia e Desenvolvimento Sustentavel
instname:Grupo Verde de Agroecologia e Abelhas (GVAA)
instacron:GVAA
instname_str Grupo Verde de Agroecologia e Abelhas (GVAA)
instacron_str GVAA
institution GVAA
reponame_str Revista Verde de Agroecologia e Desenvolvimento Sustentavel
collection Revista Verde de Agroecologia e Desenvolvimento Sustentavel
repository.name.fl_str_mv Revista Verde de Agroecologia e Desenvolvimento Sustentavel - Grupo Verde de Agroecologia e Abelhas (GVAA)
repository.mail.fl_str_mv rvadsgvaa@gmail.com || patriciomaracaja@gmail.com || revistaverde1@gmail.com || suporte@antsoft.com.br
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