PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY

Detalhes bibliográficos
Autor(a) principal: VIDAL, RIBAS A.
Data de Publicação: 1998
Outros Autores: HICKMAN, MICHAEL V., BAUMAN, THOMAS T.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Gaúcha (Online)
Texto Completo: http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/495
Resumo: Allelopathy could be used to reduce weed infestations, but adsorption of afielochemicals to soil can reduceits effects in agro-ecosystems. The objectives of this work were to study the effect of caffeic, ferulic, and salicilic acids, andcatechol on Selaria faberi (SETFA) germination in Petri-dish and soil bioassays, and to determine the adsorption of thesephenolic compounds to a silt clay loam soil. Petri-dish experimenta, using SETFA as the indicator species, showed that theallelopathic potential of the phenolics tested was: iferulic acid > catechol > salicilic acid > caffeic acid. Caffeic acid, up to 27mM, did not affect SETFA germination. SETFA germinated better in soils than in Petri-dish experimenta, suggesting thatadsorption plays an important role on the performance of the phenolic acida. Adsorption of the phenolics to soil ranged from10 to 40 % of the applied concentration. Caffeic acid and catechol had more affinity with the soil than salicilic and ferulicacids. The rate of these phenolics in 12 t/ha of wheat straw is not enough to reduce SETFA germination in the field. Theseresulta indicate that allelochemical activity may be limited by their adsorption to the soil.'
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spelling PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITYADSORÇÃO DE FENÓLICOS AO SOLO REDUZ SUA ATIVIDADE ALELOPÁTICAno-tillage, wheat, Selaria faberi, giant foxtailplantio direto, trigo, Selaria faberi, capim setária.Allelopathy could be used to reduce weed infestations, but adsorption of afielochemicals to soil can reduceits effects in agro-ecosystems. The objectives of this work were to study the effect of caffeic, ferulic, and salicilic acids, andcatechol on Selaria faberi (SETFA) germination in Petri-dish and soil bioassays, and to determine the adsorption of thesephenolic compounds to a silt clay loam soil. Petri-dish experimenta, using SETFA as the indicator species, showed that theallelopathic potential of the phenolics tested was: iferulic acid > catechol > salicilic acid > caffeic acid. Caffeic acid, up to 27mM, did not affect SETFA germination. SETFA germinated better in soils than in Petri-dish experimenta, suggesting thatadsorption plays an important role on the performance of the phenolic acida. Adsorption of the phenolics to soil ranged from10 to 40 % of the applied concentration. Caffeic acid and catechol had more affinity with the soil than salicilic and ferulicacids. The rate of these phenolics in 12 t/ha of wheat straw is not enough to reduce SETFA germination in the field. Theseresulta indicate that allelochemical activity may be limited by their adsorption to the soil.'Alelopatia poderia ser utilizada para reduzir infestações de plantas daninhas, mas a adsorção de aleloqufmicosao solo pode reduzir sua eficácia. Os objetivos deste trabalho foram avaliar o efeito de catecol e dos ácidos cafeico, ferúlicoe salicflico na inibição da germinação de Seta ria faberi (SETFA) em experimentos em placa de Petri e em vasos; e quantificara adsorção destes fenólicos num solo argiloso. Experimentos em placa de Petri, utilizando SETFA como espécie indicadora,demonstraram que o potencial alelopático dos fenólicos testados foi: ácido ferúlico > catecol > ácido salicfiico > ácidocafeico. Ácido cafeico, até 27 mM, não afetou a germinação de SETFA. Ocorreu melhor germinação de SETFA no solo doque em placas-de-petri, sugerindo que a adsorção afetou o desempenho dos fenólicos. A adsorção destes fenólicos ao solovariou entre 10 e 40% do total aplicado. Ácido cafeico e catecol tiveram maior afinidade pelo solo do que os ácidos salicilicoe fennico. A quantidade destes fenólicos em 12 tília de palha de trigo não foi suficiente para reduzir significativamente agerminação de SETFA no campo. Estes resultados indicam que os efeitos inibitórios dos aleloqufmicos são limitados pelasua dose e adsorção ao solo.Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural1998-12-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionTEXTOtextoapplication/pdfhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/495Pesquisa Agropecuária Gaúcha; Vol 4 No 2 (1998): PESQ. AGROP. GAÚCHA; 125-129Pesquisa Agropecuária Gaúcha; v. 4 n. 2 (1998): PESQ. AGROP. GAÚCHA; 125-1292595-76860104-9070reponame:Pesquisa Agropecuária Gaúcha (Online)instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulinstacron:SEAPDRporhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/495/460VIDAL, RIBAS A. HICKMAN, MICHAEL V.BAUMAN, THOMAS T.info:eu-repo/semantics/openAccess2024-04-22T12:04:11Zoai:ojs.revistapag.agricultura.rs.gov.br:article/495Revistahttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapagPUBhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/oaipag@agricultura.rs.gov.br||2595-76860104-9070opendoar:2024-04-22T12:04:11Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulfalse
dc.title.none.fl_str_mv PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY
ADSORÇÃO DE FENÓLICOS AO SOLO REDUZ SUA ATIVIDADE ALELOPÁTICA
title PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY
spellingShingle PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY
VIDAL, RIBAS A.
no-tillage, wheat, Selaria faberi, giant foxtail
plantio direto, trigo, Selaria faberi, capim setária.
title_short PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY
title_full PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY
title_fullStr PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY
title_full_unstemmed PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY
title_sort PHENOLICS ADSORPTION TO SOIL REDUCES THEIR ALLELOCHEMICAL ACTIVITY
author VIDAL, RIBAS A.
author_facet VIDAL, RIBAS A.
HICKMAN, MICHAEL V.
BAUMAN, THOMAS T.
author_role author
author2 HICKMAN, MICHAEL V.
BAUMAN, THOMAS T.
author2_role author
author
dc.contributor.author.fl_str_mv VIDAL, RIBAS A.
HICKMAN, MICHAEL V.
BAUMAN, THOMAS T.
dc.subject.por.fl_str_mv no-tillage, wheat, Selaria faberi, giant foxtail
plantio direto, trigo, Selaria faberi, capim setária.
topic no-tillage, wheat, Selaria faberi, giant foxtail
plantio direto, trigo, Selaria faberi, capim setária.
description Allelopathy could be used to reduce weed infestations, but adsorption of afielochemicals to soil can reduceits effects in agro-ecosystems. The objectives of this work were to study the effect of caffeic, ferulic, and salicilic acids, andcatechol on Selaria faberi (SETFA) germination in Petri-dish and soil bioassays, and to determine the adsorption of thesephenolic compounds to a silt clay loam soil. Petri-dish experimenta, using SETFA as the indicator species, showed that theallelopathic potential of the phenolics tested was: iferulic acid > catechol > salicilic acid > caffeic acid. Caffeic acid, up to 27mM, did not affect SETFA germination. SETFA germinated better in soils than in Petri-dish experimenta, suggesting thatadsorption plays an important role on the performance of the phenolic acida. Adsorption of the phenolics to soil ranged from10 to 40 % of the applied concentration. Caffeic acid and catechol had more affinity with the soil than salicilic and ferulicacids. The rate of these phenolics in 12 t/ha of wheat straw is not enough to reduce SETFA germination in the field. Theseresulta indicate that allelochemical activity may be limited by their adsorption to the soil.'
publishDate 1998
dc.date.none.fl_str_mv 1998-12-26
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
TEXTO
texto
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/495
url http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/495
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/495/460
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural
publisher.none.fl_str_mv Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural
dc.source.none.fl_str_mv Pesquisa Agropecuária Gaúcha; Vol 4 No 2 (1998): PESQ. AGROP. GAÚCHA; 125-129
Pesquisa Agropecuária Gaúcha; v. 4 n. 2 (1998): PESQ. AGROP. GAÚCHA; 125-129
2595-7686
0104-9070
reponame:Pesquisa Agropecuária Gaúcha (Online)
instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
instacron:SEAPDR
instname_str Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
instacron_str SEAPDR
institution SEAPDR
reponame_str Pesquisa Agropecuária Gaúcha (Online)
collection Pesquisa Agropecuária Gaúcha (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
repository.mail.fl_str_mv pag@agricultura.rs.gov.br||
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