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Allelopathic effects of extracts from several plant species on seed germination and seedlings growth of Lactuca sativa L

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dc.contributor.authorGonçalves, Sandra
dc.contributor.authorFranco, J.
dc.contributor.authorRomano, Anabela
dc.date.accessioned2015-06-18T10:12:41Z
dc.date.available2015-06-18T10:12:41Z
dc.date.issued2008
dc.description.abstractThe ability of a plant species to inhibit germination of other plants is an untapped resource for weed control in crops that could revolutionize organic crop production. The main objective of this study was to evaluate the allelopathic potential of aqueous (5 and 10%, w/v) and methanolic (50mg ml-1) extracts from several plant species (Arbustus unedo L., Ericaceae; Daphne gnidium L., Thymeleaceae; Myrtus communis L., Myrtaceae; Olea europea L., Oleaceae; Pistacia lentiscus L., Anacardiacceae; Quercus suber L., Fagaceae; Ruscus aculeatus L., Liliaceae, Rhododendron ponticum subsp baeticum (Boissier & Reuter) Handel-Mazzetti, Ericaceae) on seed germination and seedling growth of Lactuca sativa. To test the phytotoxicity 500µl of the extract were added separately over filter papers (9cm diameter) in Petri dishes. It was observed that methanolic extracts from M. communis and R. aculeatus completely inhibited seed germination, and almost all the extracts tested reduced seed germination and/or seedling growth. The inhibition of root growth was generally higher than of shoot growth, with the highest percentages of root inhibition being observed with the aqueous extracts of D. gnidium (80 and 72% for the extract at 5 and 10%, respectively) and R. aculeatus (74 and 78%), and with the methanolic extract of Q. suber (74%). Besides inhibiting seedling growth other morphological abnormalities occurred in the presence of the extracts. Roots of treated plants were thicker with a brownish color as compared to controls. Studies are being conducted to investigate the phytotoxic effect of the extracts on physiological and biochemical processes during germination and seedlings growth.
dc.identifier.doihttp://dx.doi.org/10.1055/s-0028-1084714
dc.identifier.issn0032-0943
dc.identifier.otherAUT: ARO01015;
dc.identifier.urihttp://hdl.handle.net/10400.1/6455
dc.language.isoeng
dc.peerreviewedyes
dc.publisherGeorg Thieme Verlag
dc.relation.isbasedonP-003-YBK
dc.titleAllelopathic effects of extracts from several plant species on seed germination and seedlings growth of Lactuca sativa L
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F31534%2F2006/PT
oaire.citation.conferencePlaceAthens, Greece
oaire.citation.endPage1134
oaire.citation.issue9
oaire.citation.startPage1134
oaire.citation.titlePlanta Medica
oaire.citation.title7th Joint Meeting of the Association Francophone pour l'Enselgnement et la Recherche en Pharmacognosie/American Society of Pharmacognosy/Society for Medicinal Plant Research/Phytochem Society of Europe/Societa Italiana di Fitochimica
oaire.citation.volume74
oaire.fundingStreamSFRH
person.familyNameGonçalves
person.familyNameRomano
person.givenNameSandra
person.givenNameAnabela
person.identifier.ciencia-id9F19-E3AE-2C59
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.orcid0000-0002-3038-4434
person.identifier.orcid0000-0002-7204-7428
person.identifier.ridM-6988-2017
person.identifier.scopus-author-id8583003200
person.identifier.scopus-author-id56249997600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublicationa8b335b2-45cc-4578-89b0-153273014280
relation.isAuthorOfPublicatione3343b60-17d3-4f5e-a2bf-06f26da69206
relation.isAuthorOfPublication.latestForDiscoverye3343b60-17d3-4f5e-a2bf-06f26da69206
relation.isProjectOfPublication2358a018-231a-4ddc-8332-c85cced9ba57
relation.isProjectOfPublication.latestForDiscovery2358a018-231a-4ddc-8332-c85cced9ba57

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