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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
18/07/2019 |
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Data da última atualização: |
18/07/2019 |
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Autoria: |
FRANCHINI, J. C.; MIYAZAWA, M.; PAVAN, M. A.; MALAVOLTA, E. |
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Afiliação: |
JÚLIO CEZAR FRANCHINI; MARIO MIYAZAWA, nstituto Agronômico do Paraná - IAPAR. Bolsista do CNPq; MARCOS ANTONIO PAVAN, Instituto Agronômico do Paraná - IAPAR. Bolsista do CNPq; EURIPEDES MALAVOLTA, Universidade de São Paulo - USP/Centro de Energia Nuclear na Agricultura - CENA/Seção de Nutrição Mineral de Plantas. |
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Título: |
Dinâmica de íons em solo ácido lixiviado com extratos de resíduos de adubos verdes e soluções puras de ácidos orgânicos. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 12, p. 2267-2276, nov. 1999 |
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Idioma: |
Português |
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Notas: |
Título em inglês: Dynamic of ions in acid soil leached with green manure residues extracts and pure solutions of organic acids. |
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Conteúdo: |
A influência da aplicação de resíduos vegetais na dinâmica de íons em solos ácidos é pouco conhecida. Neste estudo, a mobilidade de íons em amostra do horizonte Bw de um Latossolo Vermelho- Escuro álico lixiviado com soluções puras de ácidos cítrico e succínico e extratos aquosos de resíduos de nabo forrageiro (Raphanus sativus) e aveia-preta (Avena strigosa) foi avaliada em colunas de solo (5, 10, 20 e 40 cm de altura por 4 cm de diâmetro). Após a percolação das soluções e extratos pelas colunas de solo determinaram-se, nas soluções efluentes, os teores de Ca (Cas), Mg (Mgs), K (Ks), Al total (Alst), orgânico (Also), monomérico (Alsm) e carbono orgânico dissolvido. No solo, foram determinados os teores trocáveis de Ca (Catr), Mg (Mgtr), K (Ktr) e Al (Altr) e o pH (CaCl2). Os ácidos cítrico e succínico aumentaram os teores de Alst e Cas, respectivamente, causando reduções nas frações trocáveis desses elementos no solo. O extrato de aveia-preta foi mais efetivo na remoção do Catr e o de nabo forrageiro na do Altr. O decréscimo de Catr e Altr foi seguido do aumento do Ktr. A formação de complexos entre Cas e Altr com compostos orgânicos de baixo peso molecular foi sugerida como o provável mecanismo responsável pela mobilidade dos íons polivalentes no subsolo de solos ácidos após a aplicação dos extratos de resíduos vegetais e das soluções puras de ácidos orgânicos. |
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Palavras-Chave: |
Cation mobility; Complexo orgânico; Mobilidade de cátion; Organic complexes. |
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Thesagro: |
Alumínio; Cálcio. |
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Thesaurus Nal: |
Aluminum; Calcium. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199702/1/Dinamica-de-ions-em-solo-acido.pdf
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Marc: |
LEADER 02353naa a2200265 a 4500
001 2110729
005 2019-07-18
008 1999 bl uuuu u00u1 u #d
100 1 $aFRANCHINI, J. C.
245 $aDinâmica de íons em solo ácido lixiviado com extratos de resíduos de adubos verdes e soluções puras de ácidos orgânicos.
260 $c1999
500 $aTítulo em inglês: Dynamic of ions in acid soil leached with green manure residues extracts and pure solutions of organic acids.
520 $aA influência da aplicação de resíduos vegetais na dinâmica de íons em solos ácidos é pouco conhecida. Neste estudo, a mobilidade de íons em amostra do horizonte Bw de um Latossolo Vermelho- Escuro álico lixiviado com soluções puras de ácidos cítrico e succínico e extratos aquosos de resíduos de nabo forrageiro (Raphanus sativus) e aveia-preta (Avena strigosa) foi avaliada em colunas de solo (5, 10, 20 e 40 cm de altura por 4 cm de diâmetro). Após a percolação das soluções e extratos pelas colunas de solo determinaram-se, nas soluções efluentes, os teores de Ca (Cas), Mg (Mgs), K (Ks), Al total (Alst), orgânico (Also), monomérico (Alsm) e carbono orgânico dissolvido. No solo, foram determinados os teores trocáveis de Ca (Catr), Mg (Mgtr), K (Ktr) e Al (Altr) e o pH (CaCl2). Os ácidos cítrico e succínico aumentaram os teores de Alst e Cas, respectivamente, causando reduções nas frações trocáveis desses elementos no solo. O extrato de aveia-preta foi mais efetivo na remoção do Catr e o de nabo forrageiro na do Altr. O decréscimo de Catr e Altr foi seguido do aumento do Ktr. A formação de complexos entre Cas e Altr com compostos orgânicos de baixo peso molecular foi sugerida como o provável mecanismo responsável pela mobilidade dos íons polivalentes no subsolo de solos ácidos após a aplicação dos extratos de resíduos vegetais e das soluções puras de ácidos orgânicos.
650 $aAluminum
650 $aCalcium
650 $aAlumínio
650 $aCálcio
653 $aCation mobility
653 $aComplexo orgânico
653 $aMobilidade de cátion
653 $aOrganic complexes
700 1 $aMIYAZAWA, M.
700 1 $aPAVAN, M. A.
700 1 $aMALAVOLTA, E.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 34, n. 12, p. 2267-2276, nov. 1999
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Algodão. Para informações adicionais entre em contato com cnpa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
04/02/2022 |
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Data da última atualização: |
04/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MARTINS, S. A.; SANTOS, R. C. dos; RAMOS, A. de R.; FIGUEIREDO, P. L. B.; SILVA, C. R. C. da; SILVA, J. K. R. da. |
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Afiliação: |
SILVANIA ALVES MARTINS, UNIVERSIDADE FEDERAL DA PARAÍBA; ROSEANE CAVALCANTI DOS SANTOS, CNPA; ALESSANDRA DE REZENDE RAMOS, UNIVERSIDADE FEDERAL SUL E SUDESTE DO PARÁ; PABLO LUIS BAIA FIGUEIREDO, UNIVERSIDADE DO ESTADO DO PARÁ; CARLIANE REBECA COELHO DA SILVA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; JOYCE KELLY R DA SILVA, UNIVERSIDADE FEDERAL DO PARÁ. |
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Título: |
Allelopathic potential and phytochemical screening of Piper divaricatum extracts on germination and growth of indicator plant (Lactuca sativa). |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
South African Journal of Botany, v. 138, p. 495-499, 2021. |
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Páginas: |
4 p. |
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ISSN: |
0254-6299 |
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DOI: |
10.1016/j.sajb.2021.01.014 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil is an outstanding agricultural exponent in the world market economy of food, fiber, and derivatives. Agricultural research has significantly contributed to technology increment, ensuring competitiveness and high production, especially for significant agricultural commodities. However, producers often encounter climatic difficulties that cause problems of an abiotic or biotic nature. The occurrence of pests (pathogens, insects, and weeds) is the most adverse factor for production, increasing their costs by acquiring agricultural inputs (Albuquerque et al., 2011; Shah et al., 2016). Weeds are considered the most harmful pests to commercial crops due to the broad diversification and competitive power. The usual control is through chemical pesticides, which, despite its efficiency, is more expensive and leads to severe losses to human health and the environment. The search for alternative forms of weed control has been the subject of studies focused on cheaper, more selfsustaining and agroecological management of crops (Albuquerque et al., 2011). The allelopathy fits in this segment because consists in prospection of plant metabolites with herbicidal action, with potential to inhibit or control the growth of other neighboring plants (Albuquerque et al., 2011; Shah et al., 2016). Literature displays several reports on biochemical processes involved in synthesis of allelochemicals and responses of target plants. Among the most reported classes are terpenoids, coumarins, flavonoids, catechins, quinones, and tannins, found in several plant species, in varied concentrations. Once released into the soil by the donor plant, allelochemicals enter a complex plant-soil system in which diverse factors affect their availability, and consequently their effective influence on target plants (Kruse et al., 2000; Li et al., 2010; Nebo et al., 2014; Araniti et al., 2015; Gulzar et al., 2016). Several vegetal species with occurrence in Amazon present with broad agricultural and pharmaceutical potential, such as Piperaceae family, currently composed of six genera, including approximately 3,495 species (Roskiv et al., 2017). The genus Piper has been widely reported in literature due to secondary metabolites found in extract and essential oil, with broad antimicrobial, antifungal and allelopathic properties (Cunico et al., 2004; Lustosa et al., 2007; Silva and Bastos, 2007; Zacaroni et al., 2009; Bernuci et al., 2016; Silva et al., 2017). P. hispidinervum C. DC., P. aduncum L., P. nigrum L., P. arboreum Aubl., P. marginatum Jack., P. reticulatum L., and P. divaricatum G. Meyer are more reported. The most hold several kinds of compounds with biocidal properties, such as terpenes, phenylpropanoids, aldehydes, ketones, lignans and neolignans (Parmar et al., 1997; Lustosa et al., 2007; Zacaroni et al., 2009). P. divaricatum is a shrub known in Brazil as pau-de-angola or jaborandi-manso. The essential oil is rich in phenylpropanoids such as methyl eugenol, and eugenol presents mainly in the leaves, with high potential to pesticide industry due to activity as formicide on Solenopsis saevissima, and fungicide on Cladosporium cladosporioides, C. sphareospermum and Fusarium solani f. sp. piperis (Silva et al., 2010; Silva et al., 2014). Prospecting studies of plant species with pesticide potential, followed by the chemical identification of their compounds, are relevant especially in countries with vast biodiversity, such as Brazil. Preliminary studies of allelopathic potential of P. divaricatum aqueous extract showed high inhibition in vivo on emergence and growth of lettuce (Lactuca sativa), and weeds Cenchrus echinatus (Burger), Bidens pilosa (hair beggarticks) and Digitaria insularis (sourgrass) at 7.5% (Rafalski, 2017; Rafalski et al., 2016). Based on these results, we are reporting the prospecting of new allelopathic agents found in fractions of aqueous and other organic extracts of P. divaricatum, using lettuce as indicator plant. MenosBrazil is an outstanding agricultural exponent in the world market economy of food, fiber, and derivatives. Agricultural research has significantly contributed to technology increment, ensuring competitiveness and high production, especially for significant agricultural commodities. However, producers often encounter climatic difficulties that cause problems of an abiotic or biotic nature. The occurrence of pests (pathogens, insects, and weeds) is the most adverse factor for production, increasing their costs by acquiring agricultural inputs (Albuquerque et al., 2011; Shah et al., 2016). Weeds are considered the most harmful pests to commercial crops due to the broad diversification and competitive power. The usual control is through chemical pesticides, which, despite its efficiency, is more expensive and leads to severe losses to human health and the environment. The search for alternative forms of weed control has been the subject of studies focused on cheaper, more selfsustaining and agroecological management of crops (Albuquerque et al., 2011). The allelopathy fits in this segment because consists in prospection of plant metabolites with herbicidal action, with potential to inhibit or control the growth of other neighboring plants (Albuquerque et al., 2011; Shah et al., 2016). Literature displays several reports on biochemical processes involved in synthesis of allelochemicals and responses of target plants. Among the most reported classes are terpenoids, coumarins, fla... Mostrar Tudo |
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Thesagro: |
Composto Orgânico; Lactuca Sativa; Piperaceae. |
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Thesaurus NAL: |
Alkaloids; Coumarin; Organic compounds. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 04878naa a2200289 a 4500
001 2139668
005 2022-02-04
008 2021 bl uuuu u00u1 u #d
022 $a0254-6299
024 7 $a10.1016/j.sajb.2021.01.014$2DOI
100 1 $aMARTINS, S. A.
245 $aAllelopathic potential and phytochemical screening of Piper divaricatum extracts on germination and growth of indicator plant (Lactuca sativa).$h[electronic resource]
260 $c2021
300 $a4 p.
520 $aBrazil is an outstanding agricultural exponent in the world market economy of food, fiber, and derivatives. Agricultural research has significantly contributed to technology increment, ensuring competitiveness and high production, especially for significant agricultural commodities. However, producers often encounter climatic difficulties that cause problems of an abiotic or biotic nature. The occurrence of pests (pathogens, insects, and weeds) is the most adverse factor for production, increasing their costs by acquiring agricultural inputs (Albuquerque et al., 2011; Shah et al., 2016). Weeds are considered the most harmful pests to commercial crops due to the broad diversification and competitive power. The usual control is through chemical pesticides, which, despite its efficiency, is more expensive and leads to severe losses to human health and the environment. The search for alternative forms of weed control has been the subject of studies focused on cheaper, more selfsustaining and agroecological management of crops (Albuquerque et al., 2011). The allelopathy fits in this segment because consists in prospection of plant metabolites with herbicidal action, with potential to inhibit or control the growth of other neighboring plants (Albuquerque et al., 2011; Shah et al., 2016). Literature displays several reports on biochemical processes involved in synthesis of allelochemicals and responses of target plants. Among the most reported classes are terpenoids, coumarins, flavonoids, catechins, quinones, and tannins, found in several plant species, in varied concentrations. Once released into the soil by the donor plant, allelochemicals enter a complex plant-soil system in which diverse factors affect their availability, and consequently their effective influence on target plants (Kruse et al., 2000; Li et al., 2010; Nebo et al., 2014; Araniti et al., 2015; Gulzar et al., 2016). Several vegetal species with occurrence in Amazon present with broad agricultural and pharmaceutical potential, such as Piperaceae family, currently composed of six genera, including approximately 3,495 species (Roskiv et al., 2017). The genus Piper has been widely reported in literature due to secondary metabolites found in extract and essential oil, with broad antimicrobial, antifungal and allelopathic properties (Cunico et al., 2004; Lustosa et al., 2007; Silva and Bastos, 2007; Zacaroni et al., 2009; Bernuci et al., 2016; Silva et al., 2017). P. hispidinervum C. DC., P. aduncum L., P. nigrum L., P. arboreum Aubl., P. marginatum Jack., P. reticulatum L., and P. divaricatum G. Meyer are more reported. The most hold several kinds of compounds with biocidal properties, such as terpenes, phenylpropanoids, aldehydes, ketones, lignans and neolignans (Parmar et al., 1997; Lustosa et al., 2007; Zacaroni et al., 2009). P. divaricatum is a shrub known in Brazil as pau-de-angola or jaborandi-manso. The essential oil is rich in phenylpropanoids such as methyl eugenol, and eugenol presents mainly in the leaves, with high potential to pesticide industry due to activity as formicide on Solenopsis saevissima, and fungicide on Cladosporium cladosporioides, C. sphareospermum and Fusarium solani f. sp. piperis (Silva et al., 2010; Silva et al., 2014). Prospecting studies of plant species with pesticide potential, followed by the chemical identification of their compounds, are relevant especially in countries with vast biodiversity, such as Brazil. Preliminary studies of allelopathic potential of P. divaricatum aqueous extract showed high inhibition in vivo on emergence and growth of lettuce (Lactuca sativa), and weeds Cenchrus echinatus (Burger), Bidens pilosa (hair beggarticks) and Digitaria insularis (sourgrass) at 7.5% (Rafalski, 2017; Rafalski et al., 2016). Based on these results, we are reporting the prospecting of new allelopathic agents found in fractions of aqueous and other organic extracts of P. divaricatum, using lettuce as indicator plant.
650 $aAlkaloids
650 $aCoumarin
650 $aOrganic compounds
650 $aComposto Orgânico
650 $aLactuca Sativa
650 $aPiperaceae
700 1 $aSANTOS, R. C. dos
700 1 $aRAMOS, A. de R.
700 1 $aFIGUEIREDO, P. L. B.
700 1 $aSILVA, C. R. C. da
700 1 $aSILVA, J. K. R. da
773 $tSouth African Journal of Botany$gv. 138, p. 495-499, 2021.
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