Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops

Detalhes bibliográficos
Autor(a) principal: Yamagushi, Micaela Queiroz
Data de Publicação: 2011
Outros Autores: Gusman, Grasielle Soares, Vestena, Silvane
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5080
Resumo: Allelopathy is characterized by the harmful or benefic effects caused by secondary metabolites, that are produced by plants, microorganisms or fungi and are released in the environment, on the development of natural biological systems or implemented ones. This study aimed to evaluate the allelopathic effects of aqueous extracts of eucalypt (Eucalyptus globulus Labill.) and wild coffee (Casearia sylvestris Sw.) on the germination and initial development of mustard (Brassica campestris L.), cabbage (Brassica oleracea L. cv. capitata), broccoli (Brassica oleracea L. cv. italica), kale (Brassica pekinensis L.), lettuce (Lactuca sativa L. cv. grand rapids), tomato (Lycopersicum esculentum Miller), turnip (Brassica rapa L.), rucola (Eruca sativa L.) and radish (Raphanus sativus L.). Six concentrations of each aqueous extract were tested (10, 30, 50, 70, 90 and 100%) and compared to control (distilled water), with five replicates of each concentration, being ten seeds of each crop distributed in each replicate. The aqueous extracts of E. globulus and C. sylvestris reduced significantly the percentage of seed germination, the index of germination speed and the initial growth of the above ground part and roots of all cultivated species, being the reduction of these parameters higher with the increment of the aqueous extracts concentration, which led to thicker and atrophied roots with a higher number of absorbent hairs. Therefore, the results indicate an existence of allelopathic potential of E. globulus and C. sylvestris.
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spelling Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on cropsEfeito alelopático de extratos aquosos de Eucalyptus globulus Labill. e de Casearia sylvestris Sw. sobre espécies cultivadasAllelopathyGerminationGrowthEucalyptus globulesCasearia sylvestris.AlelopatiaGerminaçãoCrescimentoEucalyptus globulesCasearia sylvestris.Allelopathy is characterized by the harmful or benefic effects caused by secondary metabolites, that are produced by plants, microorganisms or fungi and are released in the environment, on the development of natural biological systems or implemented ones. This study aimed to evaluate the allelopathic effects of aqueous extracts of eucalypt (Eucalyptus globulus Labill.) and wild coffee (Casearia sylvestris Sw.) on the germination and initial development of mustard (Brassica campestris L.), cabbage (Brassica oleracea L. cv. capitata), broccoli (Brassica oleracea L. cv. italica), kale (Brassica pekinensis L.), lettuce (Lactuca sativa L. cv. grand rapids), tomato (Lycopersicum esculentum Miller), turnip (Brassica rapa L.), rucola (Eruca sativa L.) and radish (Raphanus sativus L.). Six concentrations of each aqueous extract were tested (10, 30, 50, 70, 90 and 100%) and compared to control (distilled water), with five replicates of each concentration, being ten seeds of each crop distributed in each replicate. The aqueous extracts of E. globulus and C. sylvestris reduced significantly the percentage of seed germination, the index of germination speed and the initial growth of the above ground part and roots of all cultivated species, being the reduction of these parameters higher with the increment of the aqueous extracts concentration, which led to thicker and atrophied roots with a higher number of absorbent hairs. Therefore, the results indicate an existence of allelopathic potential of E. globulus and C. sylvestris.A alelopatia caracteriza-se pelos efeitos danosos ou benéficos que metabólitos secundários produzidos por plantas, microrganismos ou fungos liberados no ambiente exercem sobre o desenvolvimento de sistemas biológicos naturais ou implantados. O objetivo do trabalho foi avaliar o efeito alelopático de extratos aquosos de eucalipto (Eucalyptus globulus Labill.) e guaçatonga (Casearia sylvestris Sw.) na germinação e no crescimento inicial de mostarda (Brassica campestris L.), repolho (Brassica oleracea L. cv. capitata), brócolis (Brassica oleracea L. cv. italica), couve (Brassica pekinensis L.), alface (Lactuca sativa L. cv. grand rapids), tomate (Lycopersicum esculentum Miller), nabo (Brassica rapa L.), rúcula (Eruca sativa L.) e rabanete (Raphanus sativus L.). Foram testadas seis concentrações de cada extrato aquoso (10, 30, 50, 70, 90 e 100%) e comparadas com controle (água destilada), com cinco repetições cada, sendo distribuídas dez sementes das espécies cultivadas em cada repetição. Os extratos aquosos de E. globulus e C. sylvestris reduziram significativamente o percentual de germinação das sementes, o índice de velocidade de germinação, o crescimento inicial da parte aérea e do sistema radicular de todas as espécies cultivadas, com redução nestes parâmetros com aumento das concentrações utilizadas e, acarretando raízes mais espessas, atrofiadas e com maior número de pêlos absorventes. Assim, os resultados indicam a existência de potencial alelopático de E. globulus e C. sylvestris.UEL2011-10-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Experimentalapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/508010.5433/1679-0359.2011v32n4p1361Semina: Ciências Agrárias; Vol. 32 No. 4 (2011); 1361-1374Semina: Ciências Agrárias; v. 32 n. 4 (2011); 1361-13741679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5080/8900Yamagushi, Micaela QueirozGusman, Grasielle SoaresVestena, Silvaneinfo:eu-repo/semantics/openAccess2015-11-19T18:37:46Zoai:ojs.pkp.sfu.ca:article/5080Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:37:46Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops
Efeito alelopático de extratos aquosos de Eucalyptus globulus Labill. e de Casearia sylvestris Sw. sobre espécies cultivadas
title Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops
spellingShingle Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops
Yamagushi, Micaela Queiroz
Allelopathy
Germination
Growth
Eucalyptus globules
Casearia sylvestris.
Alelopatia
Germinação
Crescimento
Eucalyptus globules
Casearia sylvestris.
title_short Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops
title_full Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops
title_fullStr Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops
title_full_unstemmed Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops
title_sort Allelopathic effect of aqueous extracts of Eucalyptus globulus Labill. and of Casearia sylvestris Sw. on crops
author Yamagushi, Micaela Queiroz
author_facet Yamagushi, Micaela Queiroz
Gusman, Grasielle Soares
Vestena, Silvane
author_role author
author2 Gusman, Grasielle Soares
Vestena, Silvane
author2_role author
author
dc.contributor.author.fl_str_mv Yamagushi, Micaela Queiroz
Gusman, Grasielle Soares
Vestena, Silvane
dc.subject.por.fl_str_mv Allelopathy
Germination
Growth
Eucalyptus globules
Casearia sylvestris.
Alelopatia
Germinação
Crescimento
Eucalyptus globules
Casearia sylvestris.
topic Allelopathy
Germination
Growth
Eucalyptus globules
Casearia sylvestris.
Alelopatia
Germinação
Crescimento
Eucalyptus globules
Casearia sylvestris.
description Allelopathy is characterized by the harmful or benefic effects caused by secondary metabolites, that are produced by plants, microorganisms or fungi and are released in the environment, on the development of natural biological systems or implemented ones. This study aimed to evaluate the allelopathic effects of aqueous extracts of eucalypt (Eucalyptus globulus Labill.) and wild coffee (Casearia sylvestris Sw.) on the germination and initial development of mustard (Brassica campestris L.), cabbage (Brassica oleracea L. cv. capitata), broccoli (Brassica oleracea L. cv. italica), kale (Brassica pekinensis L.), lettuce (Lactuca sativa L. cv. grand rapids), tomato (Lycopersicum esculentum Miller), turnip (Brassica rapa L.), rucola (Eruca sativa L.) and radish (Raphanus sativus L.). Six concentrations of each aqueous extract were tested (10, 30, 50, 70, 90 and 100%) and compared to control (distilled water), with five replicates of each concentration, being ten seeds of each crop distributed in each replicate. The aqueous extracts of E. globulus and C. sylvestris reduced significantly the percentage of seed germination, the index of germination speed and the initial growth of the above ground part and roots of all cultivated species, being the reduction of these parameters higher with the increment of the aqueous extracts concentration, which led to thicker and atrophied roots with a higher number of absorbent hairs. Therefore, the results indicate an existence of allelopathic potential of E. globulus and C. sylvestris.
publishDate 2011
dc.date.none.fl_str_mv 2011-10-14
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5080
10.5433/1679-0359.2011v32n4p1361
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5080
identifier_str_mv 10.5433/1679-0359.2011v32n4p1361
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5080/8900
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 UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 32 No. 4 (2011); 1361-1374
Semina: Ciências Agrárias; v. 32 n. 4 (2011); 1361-1374
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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