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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Meio Ambiente. |
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Data corrente: |
13/05/2022 |
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Data da última atualização: |
13/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOARES, J. P. G.; SALES, P. C. M.; SOUSA, T. C. R. de; MALAQUIAS, J. V.; RODRIGUES, G. S. |
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Afiliação: |
JOAO PAULO GUIMARAES SOARES, CPAC; PEDRO CANUTO MACEDO SALES; TITO CARLOS ROCHA DE SOUSA, CPAC; JUACI VITORIA MALAQUIAS, CPAC; GERALDO STACHETTI RODRIGUES, CNPMA. |
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Título: |
Environmental impacts of transition from conventional milk production to organic production. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Realização, v. 08, n. 16, 2021. |
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Páginas: |
p. 43-63 |
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ISSN: |
2358-3401 |
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DOI: |
DOI 10.30612/realizacao.v8i16.15218 |
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Idioma: |
Inglês
Português |
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Conteúdo: |
RESUMO:O objetivo deste estudo é avaliar os impactos ambientais da transição para as práticas de produção de leite orgânico. Sete propriedades familiares foram avaliadas no Distrito Federal e no entorno da Região de Desenvolvimento Integrado, com base no sistema de indicadores Ambitec-Agro da Embrapa. Os dados foram obtidos na agricultura familiar durante avaliações de campo realizadas em 2012 e 2013, junto aos familiares responsáveis pela produção. Os índices médios de desempenho ambiental foram -2,13 e 3,37 respectivamente, para os sistemas de produção convencional e orgânico. "Qualidade do solo" (19,1), "destinação de resíduos" (16,4), "Valor da propriedade" (15,1) e "geração de renda" (13,9) foram os indicadores que mais contribuíram para os índices de desempenho orgânico. O percentual de aumento no desempenho da tecnologia foi de 18,35%. |
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Palavras-Chave: |
Conversão agroecológica; Leite orgânico. |
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Thesagro: |
Agricultura Familiar; Leite; Produção Orgânica. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1142940/1/Joao-Paulo-Environmental-impacts-of-transition-from-conventional.pdf
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Marc: |
LEADER 01666naa a2200265 a 4500
001 2142940
005 2022-05-13
008 2021 bl uuuu u00u1 u #d
022 $a2358-3401
024 7 $aDOI 10.30612/realizacao.v8i16.15218$2DOI
100 1 $aSOARES, J. P. G.
245 $aEnvironmental impacts of transition from conventional milk production to organic production.$h[electronic resource]
260 $c2021
300 $ap. 43-63
520 $aRESUMO:O objetivo deste estudo é avaliar os impactos ambientais da transição para as práticas de produção de leite orgânico. Sete propriedades familiares foram avaliadas no Distrito Federal e no entorno da Região de Desenvolvimento Integrado, com base no sistema de indicadores Ambitec-Agro da Embrapa. Os dados foram obtidos na agricultura familiar durante avaliações de campo realizadas em 2012 e 2013, junto aos familiares responsáveis pela produção. Os índices médios de desempenho ambiental foram -2,13 e 3,37 respectivamente, para os sistemas de produção convencional e orgânico. "Qualidade do solo" (19,1), "destinação de resíduos" (16,4), "Valor da propriedade" (15,1) e "geração de renda" (13,9) foram os indicadores que mais contribuíram para os índices de desempenho orgânico. O percentual de aumento no desempenho da tecnologia foi de 18,35%.
650 $aAgricultura Familiar
650 $aLeite
650 $aProdução Orgânica
653 $aConversão agroecológica
653 $aLeite orgânico
700 1 $aSALES, P. C. M.
700 1 $aSOUSA, T. C. R. de
700 1 $aMALAQUIAS, J. V.
700 1 $aRODRIGUES, G. S.
773 $tRealização$gv. 08, n. 16, 2021.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
26/09/2018 |
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Data da última atualização: |
26/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MAGALHAES, J. V. de; PIÑEROS, M. A.; MACIEL, L. S.; KOCHIAN, L. V. |
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Afiliação: |
JURANDIR VIEIRA DE MAGALHAES, CNPMS; Miguel A. Piñeros, Cornell University; Laiane S. Maciel, Universidade Federal de Minas Gerais; Leon V. Kochian, University of Saskatchewan. |
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Título: |
Emerging pleiotropic mechanisms underlying aluminum resistance and phosphorus acquisition on acidic soils. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Frontiers in Plant Science, v. 9. p. 1-12, 2018. |
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DOI: |
10.3389/fpls.2018.01420 |
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Idioma: |
Inglês |
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Notas: |
Article 1420. |
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Conteúdo: |
Aluminum (Al) toxicity on acidic soils significantly damages plant roots and inhibits root growth. Hence, crops intoxicated by Al become more sensitive to drought stress and mineral nutrient deficiencies, particularly phosphorus (P) deficiency, which is highly unavailable on tropical soils. Advances in our understanding of the physiological and genetic mechanisms that govern plant Al resistance have led to the identification of Al resistance genes, both in model systems and in crop species. It has long been known that Al resistance has a beneficial effect on crop adaptation to acidic soils. This positive effect happens because the root systems of Al resistant plants show better development in the presence of soil ionic Al3C and are, consequently, more efficient in absorbing sub-soil water and mineral nutrients. This effect of Al resistance on crop production, by itself, warrants intensified efforts to develop and implement, on a breeding scale, modern selection strategies to profit from the knowledge of the molecular determinants of plant Al resistance. Recent studies now suggest that Al resistance can exert pleiotropic effects on P acquisition, potentially expanding the role of Al resistance on crop adaptation to acidic soils. This appears to occur via both organic acid (OA)- and non-OA transporters governing a joint, iron-dependent interplay between Al resistance and enhanced P uptake, via changes in root system architecture. Current research suggests this interplay to be part of a P stress response, suggesting that this mechanism could have evolved in crop species to improve adaptation to acidic soils. Should this pleiotropism prove functional in crop species grown on acidic soils, molecular breeding based on Al resistance genes may have a much broader impact on crop performance than previously anticipated. To explore this possibility, here we review the components of this putative effect of Al resistance genes on P stress responses and P nutrition to provide the foundation necessary to discuss the recent evidence suggesting pleiotropy as a genetic linkage between Al resistance and P efficiency. We conclude by exploring what may be needed to enhance the utilization of Al resistance genes to improve crop production on acidic soils. MenosAluminum (Al) toxicity on acidic soils significantly damages plant roots and inhibits root growth. Hence, crops intoxicated by Al become more sensitive to drought stress and mineral nutrient deficiencies, particularly phosphorus (P) deficiency, which is highly unavailable on tropical soils. Advances in our understanding of the physiological and genetic mechanisms that govern plant Al resistance have led to the identification of Al resistance genes, both in model systems and in crop species. It has long been known that Al resistance has a beneficial effect on crop adaptation to acidic soils. This positive effect happens because the root systems of Al resistant plants show better development in the presence of soil ionic Al3C and are, consequently, more efficient in absorbing sub-soil water and mineral nutrients. This effect of Al resistance on crop production, by itself, warrants intensified efforts to develop and implement, on a breeding scale, modern selection strategies to profit from the knowledge of the molecular determinants of plant Al resistance. Recent studies now suggest that Al resistance can exert pleiotropic effects on P acquisition, potentially expanding the role of Al resistance on crop adaptation to acidic soils. This appears to occur via both organic acid (OA)- and non-OA transporters governing a joint, iron-dependent interplay between Al resistance and enhanced P uptake, via changes in root system architecture. Current research suggests this interplay to be ... Mostrar Tudo |
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Thesagro: |
Alumínio; Fósforo; Melhoramento Vegetal. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183518/1/Emerging-pleiotropic.pdf
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Marc: |
LEADER 02936naa a2200217 a 4500
001 2096304
005 2018-09-26
008 2018 bl uuuu u00u1 u #d
024 7 $a10.3389/fpls.2018.01420$2DOI
100 1 $aMAGALHAES, J. V. de
245 $aEmerging pleiotropic mechanisms underlying aluminum resistance and phosphorus acquisition on acidic soils.$h[electronic resource]
260 $c2018
500 $aArticle 1420.
520 $aAluminum (Al) toxicity on acidic soils significantly damages plant roots and inhibits root growth. Hence, crops intoxicated by Al become more sensitive to drought stress and mineral nutrient deficiencies, particularly phosphorus (P) deficiency, which is highly unavailable on tropical soils. Advances in our understanding of the physiological and genetic mechanisms that govern plant Al resistance have led to the identification of Al resistance genes, both in model systems and in crop species. It has long been known that Al resistance has a beneficial effect on crop adaptation to acidic soils. This positive effect happens because the root systems of Al resistant plants show better development in the presence of soil ionic Al3C and are, consequently, more efficient in absorbing sub-soil water and mineral nutrients. This effect of Al resistance on crop production, by itself, warrants intensified efforts to develop and implement, on a breeding scale, modern selection strategies to profit from the knowledge of the molecular determinants of plant Al resistance. Recent studies now suggest that Al resistance can exert pleiotropic effects on P acquisition, potentially expanding the role of Al resistance on crop adaptation to acidic soils. This appears to occur via both organic acid (OA)- and non-OA transporters governing a joint, iron-dependent interplay between Al resistance and enhanced P uptake, via changes in root system architecture. Current research suggests this interplay to be part of a P stress response, suggesting that this mechanism could have evolved in crop species to improve adaptation to acidic soils. Should this pleiotropism prove functional in crop species grown on acidic soils, molecular breeding based on Al resistance genes may have a much broader impact on crop performance than previously anticipated. To explore this possibility, here we review the components of this putative effect of Al resistance genes on P stress responses and P nutrition to provide the foundation necessary to discuss the recent evidence suggesting pleiotropy as a genetic linkage between Al resistance and P efficiency. We conclude by exploring what may be needed to enhance the utilization of Al resistance genes to improve crop production on acidic soils.
650 $aAlumínio
650 $aFósforo
650 $aMelhoramento Vegetal
700 1 $aPIÑEROS, M. A.
700 1 $aMACIEL, L. S.
700 1 $aKOCHIAN, L. V.
773 $tFrontiers in Plant Science$gv. 9. p. 1-12, 2018.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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