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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
05/04/2022 |
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Data da última atualização: |
11/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIBEIRO, B. L.; RIBEIRO, J. M.; TEIXEIRA, S. L.; OLIVEIRA, A. B. N.; PEIXOTO, A. R.; MENEZES, A. C. P.; SOUZA, J. C.; PAZ, C. D. da. |
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Afiliação: |
BRENDA LIMA RIBEIRO, UNIVERSIDADE DO ESTADO DA BAHIA; JULIANA MARTINS RIBEIRO, CPATSA; SILVIO LOPES TEIXEIRA; ANTÔNIO BRUNO NUNES OLIVEIRA, UNEB; ANA ROSA PEIXOTO, UNEB; ANNA CHRISTINA PASSOS MENEZES, UNEB; JOSELITA CARDOSO DE SOUZA, UNEB; CRISTIANE DOMINGOS DA PAZ, UNEB. |
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Título: |
Xanthan gum and sodium hypochlorite in vitro rooting of Gerbera hybrida cv. Essandre |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Research, Society and Development, v. 10, n. 4, e4811425143, 2022 |
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ISSN: |
2525-3409 |
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DOI: |
http://dx.doi.org/10.33448/rsd-v10i4.25143 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to check the use of the following gelling agents: the xanthan gum ?Adicel®? and the stabilizer ?Super Liga Neutra®? to replace agar in the in vitro rooting phase of Gerbera hybrida cv. Essandre. Additionally, the possibility of using chemical sterilization of both culture media and glassware with sodium hypochlorite to replace autoclaving was analyzed. The gelling agents, xanthan gum ?Adicel®? and the stabilizer ?Super Liga Neutra®? were tested at the following concentrations (g L-1 ): 7; 9; 11; 13; 15; 17; 19; and 21. No concentrations of Super Liga Neutra® provided effective solidification. Concentrations of 17 and 21 g of Adicel® provided a good gelling of the culture medium, which was compared to the medium containing agar (control) with two types of sterilization: autoclaving (for 20 and 40 minutes) and chemical sterilization. Autoclaving for 20 minutes did not provide effective elimination of contamination in the culture medium containing xanthan gum; this only occurred when autoclaving time increased to 40 minutes. Plant development in culture media containing 17 and 21 g of xanthan gum, either sterilized by autoclaving for 40 minutes or at a concentration of 17 g xanthan gum using sodium hypochlorite, was statistically the same as the control that contained agar. However, plant development at a concentration of 21g of xanthan gum in a sterilized medium using sodium hypochlorite was lower than that observed in media containing agar. |
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Palavras-Chave: |
Agentes geleificante; Goma xantana; Liga neutra. |
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Thesagro: |
Custo de Produção; Meio de Cultura; Micropropagação; Reagente Químico. |
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Thesaurus Nal: |
Culture media; Micropropagation. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02497naa a2200337 a 4500
001 2141863
005 2022-04-11
008 2022 bl uuuu u00u1 u #d
022 $a2525-3409
024 7 $ahttp://dx.doi.org/10.33448/rsd-v10i4.25143$2DOI
100 1 $aRIBEIRO, B. L.
245 $aXanthan gum and sodium hypochlorite in vitro rooting of Gerbera hybrida cv. Essandre$h[electronic resource]
260 $c2022
520 $aThe aim of this study was to check the use of the following gelling agents: the xanthan gum ?Adicel®? and the stabilizer ?Super Liga Neutra®? to replace agar in the in vitro rooting phase of Gerbera hybrida cv. Essandre. Additionally, the possibility of using chemical sterilization of both culture media and glassware with sodium hypochlorite to replace autoclaving was analyzed. The gelling agents, xanthan gum ?Adicel®? and the stabilizer ?Super Liga Neutra®? were tested at the following concentrations (g L-1 ): 7; 9; 11; 13; 15; 17; 19; and 21. No concentrations of Super Liga Neutra® provided effective solidification. Concentrations of 17 and 21 g of Adicel® provided a good gelling of the culture medium, which was compared to the medium containing agar (control) with two types of sterilization: autoclaving (for 20 and 40 minutes) and chemical sterilization. Autoclaving for 20 minutes did not provide effective elimination of contamination in the culture medium containing xanthan gum; this only occurred when autoclaving time increased to 40 minutes. Plant development in culture media containing 17 and 21 g of xanthan gum, either sterilized by autoclaving for 40 minutes or at a concentration of 17 g xanthan gum using sodium hypochlorite, was statistically the same as the control that contained agar. However, plant development at a concentration of 21g of xanthan gum in a sterilized medium using sodium hypochlorite was lower than that observed in media containing agar.
650 $aCulture media
650 $aMicropropagation
650 $aCusto de Produção
650 $aMeio de Cultura
650 $aMicropropagação
650 $aReagente Químico
653 $aAgentes geleificante
653 $aGoma xantana
653 $aLiga neutra
700 1 $aRIBEIRO, J. M.
700 1 $aTEIXEIRA, S. L.
700 1 $aOLIVEIRA, A. B. N.
700 1 $aPEIXOTO, A. R.
700 1 $aMENEZES, A. C. P.
700 1 $aSOUZA, J. C.
700 1 $aPAZ, C. D. da
773 $tResearch, Society and Development$gv. 10, n. 4, e4811425143, 2022
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Registro original: |
Embrapa Semiárido (CPATSA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Unidades Centrais. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
10/12/2012 |
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Data da última atualização: |
10/12/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ABREU, U. G. P. de; GOMES, E. G.; MELLO, J. C. C. B. S. de; SANTOS, S. A.; CATTO, D. F. |
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Afiliação: |
URBANO GOMES PINTO DE ABREU, CPAP; ELIANE GONCALVES GOMES, SGE; JOÃO CARLOS CORREIA BAPTISTA SOARES DE MELLO; SANDRA APARECIDA SANTOS, CPAP; DALTON FRANCISCO CATTO. |
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Título: |
Heifer retention program in the Pantanal: a study with data envelopment analysis (DEA) and malmquist index. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 41, n. 8, p. 1937-1943, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to propose Data Envelopment Analysis (DEA) models and non-parametric Malmquist indexes to evaluate the efficiency of 11 livestock farms in the Pantanal region. These farms took out a loan from ?Fundo Constitucional de Financiamento do Centro-Oeste? ? FCO (Constitutional Financial Fund for the Midwest), a line of credit for financing heifer retention. The beneficiaries were the farmers whose properties met the following conditions: farms located in the plain of Pantanal, with at least 50% of native pasture; farms that were part of managerial capacity building projects intended to ensure better management and animal performance indexes; and farms with pasture areas where the activity could potentially evolve. The management of the loan on 11 farms were studied in relation to the technology introduced in the period from 2004 to 2008. Five properties presented technical efficiency below 1, that is, the technical management efficiency with the objective to increase the cattle through heifer retention and the purchase of higher genetic quality heifers was not achieved. However, the index of technological progress was above 1 on all tested farms, which means that technology was in fact incorporated in all properties, which resulted in total factor productivity growth on all farms. The main objective was fully met, even on the technically inefficient farms. |
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Thesagro: |
Analise estatistica; Novilho. |
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Thesaurus NAL: |
Cattle; Mathematical models; Production technology. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02113naa a2200229 a 4500
001 1941892
005 2012-12-10
008 2012 bl uuuu u00u1 u #d
100 1 $aABREU, U. G. P. de
245 $aHeifer retention program in the Pantanal$ba study with data envelopment analysis (DEA) and malmquist index.$h[electronic resource]
260 $c2012
520 $aThe objective of this study was to propose Data Envelopment Analysis (DEA) models and non-parametric Malmquist indexes to evaluate the efficiency of 11 livestock farms in the Pantanal region. These farms took out a loan from ?Fundo Constitucional de Financiamento do Centro-Oeste? ? FCO (Constitutional Financial Fund for the Midwest), a line of credit for financing heifer retention. The beneficiaries were the farmers whose properties met the following conditions: farms located in the plain of Pantanal, with at least 50% of native pasture; farms that were part of managerial capacity building projects intended to ensure better management and animal performance indexes; and farms with pasture areas where the activity could potentially evolve. The management of the loan on 11 farms were studied in relation to the technology introduced in the period from 2004 to 2008. Five properties presented technical efficiency below 1, that is, the technical management efficiency with the objective to increase the cattle through heifer retention and the purchase of higher genetic quality heifers was not achieved. However, the index of technological progress was above 1 on all tested farms, which means that technology was in fact incorporated in all properties, which resulted in total factor productivity growth on all farms. The main objective was fully met, even on the technically inefficient farms.
650 $aCattle
650 $aMathematical models
650 $aProduction technology
650 $aAnalise estatistica
650 $aNovilho
700 1 $aGOMES, E. G.
700 1 $aMELLO, J. C. C. B. S. de
700 1 $aSANTOS, S. A.
700 1 $aCATTO, D. F.
773 $tRevista Brasileira de Zootecnia$gv. 41, n. 8, p. 1937-1943, 2012.
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