https://socictopen.socict.org/files/original/5aeeedf68992aac3d92256694d38aa9c.pdf ab50de5589b1b7191e5a910a7e8e9812 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Allelopathic effects of orange (Citrus sinensis L.) peel essential oil Efeitos alelopáticos do óleo essencial da casca da laranja (Citrus sinensis L.) Creator An entity primarily responsible for making the resource Jose Pedro Nepomuceno Ribeiro, Maria Inês Salgueiro Lima Description An account of the resource Crop weeds are the main problem in agriculture, causing a worldwide annual loss of about US$95 billion. The principal method for control is the use of synthetic herbicides. The continued use of these products increases crop costs, reduces crop quality, and leaves toxic residues in the environment, which are a threat to human and livestock health. Therefore, there is a demand for environmentally friendly methods of weed control. The use of allelopathic compounds from crop residues is an alternative. Orange is one of the biggest crops in the world, and its cultivation generates large amounts of residues. There is strong evidence of bioactivity in orange peel essential oil. Therefore, the objective in this work was to verify the allelopathic proprieties of this oil. We extracted the oil from the peels of recently discarded oranges using water vapor flow with a Clevenger extractor, and tested it against the growth of Euphorbia heterophylla L. and Ipomoea grandifolia (Dammer) O'Donell seedlings when placed in contact with the oil vapor. The results were both quantitative and qualitative in the inhibition of the seedlings.Plantas daninhas são o principal problema da agricultura no mundo, causando anualmente um prejuízo de U$95 bilhões. A principal forma de combate às plantas daninhas são os herbicidas sintéticos. Entretanto, o uso continuado desses produtos encarece a produção, reduz a qualidade dos alimentos, deixa resíduos tóxicos no ambiente e ameaça a saúde humana e animal. Existe assim, uma demanda por técnicas menos agressivas de controle. O uso de compostos alelopáticos de descartes de culturas para esse fim é uma alternativa. A laranja é uma das maiores culturas do mundo, e gera grandes quantidades de resíduos. Existem evidências da bioatividade no óleo essencial da casca da laranja. Nesse trabalho, nosso objetivo foi verificar a existência de propriedades alelopáticas desse óleo. Para isto, extraímos o óleo por arraste de vapor de água utilizando o aparelho de Clevenger, e colocamos os produtos volatilizáveis do óleo essencial em contato com plântulas de Euphorbia heterophylla L. e Ipomoea grandifolia (Dammer) O'Donell. O resultado foi inibição tanto quantitativa quanto qualitativa das plântulas Date A point or period of time associated with an event in the lifecycle of the resource 2012 Subject The topic of the resource Agricultura orgânica, Controle de pragas, Crop residues, Limonene, alelopatia, allelopathy, descartes de cultivos, limoneno, organic agriculture, plantas invasoras de culturas, weed controly, weeds Identifier An unambiguous reference to the resource within a given context 10.1590/S0102-33062012000100025 Source A related resource from which the described resource is derived Acta Botânica Brasílica Publisher An entity responsible for making the resource available Sociedade Botânica do Brasil Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Botany Relation A related resource <a href="http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0102-33062012000100025" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0102-33062012000100025</a>