2021
DOI: 10.17765/2176-9168.2021v14n2e8249
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Atividade alelopática de extratos de folhas e sementes de Prosopis juliflora na germinação de alface

Abstract: Prosopis juliflora é uma árvore invasora e que tem efeito alelopático negativo sobre várias espécies nativas da caatinga. O objetivo deste estudo foi verificar o efeito alelopático do extrato de folhas e sementes de algaroba sobre a germinação de alface. Para cada parte da planta foi obtido o extrato a 25 ºC e a 100 ºC. Foi usado o delineamento experimental inteiramente casualizado com cinco tratamentos constituídos pelas concentrações do extrato obtidas por diluição em água destilada (0, 25, 50, 75 e 100%), c… Show more

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Cited by 2 publications
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“…It can be inferred that the activity presented by the AcOEt fraction may be influenced by other metabolites present in this fraction as observed by CCD analysis. In a study conducted by Araújo et al, (2015), the fractions CHCl3, AcOEt and hydroalcoholic remainder of the leaves of O. pulchella showed toxic activity capable of causing mortality of the microcrustacean, suggesting bioactivity. A study using the fruits of the species O. heterochroma (CUCA et al, 2009) showed activity for the crude ethanolic extract, butanolic fraction and with the benzene fraction being considered with good bioactivity.…”
Section: Resultsmentioning
confidence: 99%
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“…It can be inferred that the activity presented by the AcOEt fraction may be influenced by other metabolites present in this fraction as observed by CCD analysis. In a study conducted by Araújo et al, (2015), the fractions CHCl3, AcOEt and hydroalcoholic remainder of the leaves of O. pulchella showed toxic activity capable of causing mortality of the microcrustacean, suggesting bioactivity. A study using the fruits of the species O. heterochroma (CUCA et al, 2009) showed activity for the crude ethanolic extract, butanolic fraction and with the benzene fraction being considered with good bioactivity.…”
Section: Resultsmentioning
confidence: 99%
“…The allelopathic action can occur in several ways, it can be in an allelochemical way, by the leaching process in plants, volatilization and exudation of roots, as well as by microbial activity and decomposition of dry residues (FAROOQ, et al 2011). In this context the allelopathic interaction can influence seed germination and seedling development, nutrient assimilation, photosynthesis, root growth, pest and disease control, among others (SILVA et al, 2013;SILVA et al, 2015;FONSECA et al, 2015;PINHEIRO et al, 2016). JUNGBLUTH, D. et al (2021) Sci.…”
Section: Introductionmentioning
confidence: 99%
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“…Devido sua capacidade de acumular grandes quantidades de biomassa, esta espécie também pode facilitar a ocorrência de incêndios (Ferreira & Maia-Barbosa, 2013). Já a P. juliflora é uma árvore originária das regiões semiáridas das Américas (Dias et al, 2018) que foi introduzida no Brasil como forrageira e produtora de madeira (Silveira et al, 2021). Ela afeta negativamente a estrutura da comunidade das áreas invadidas (Andrade et al, 2010), é capaz de alterar a química dos solos e reduzir os recursos hídricos (Dzikiti et al, 2013).…”
Section: Introductionunclassified