| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Unidades Centrais. |
|
Data corrente: |
13/10/2010 |
|
Data da última atualização: |
30/04/2018 |
|
Autoria: |
OLIVEIRA, M. L. P. de; COSTA, M. G. C.; SILVA, C. V. da; OTONI, W. C. |
|
Afiliação: |
Maria Luiza Peixoto de Oliveira, Universidade Federal de Viçosa; Marcio Gilberto Cardoso Costa, Universidade Estadual de Santa Cruz; Crislene Viana da Silva, Universidade Federal de Viçosa; Wagner Campos Otoni, Universidade Federal de Viçosa. |
|
Título: |
Growth regulators, culture media and antibiotics in the in vitro shoot regeneration from mature tissue of citrus cultivars. |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 7, p.654-660, jul. 2010 |
|
Idioma: |
Inglês |
|
Notas: |
Título em português: Reguladores de crescimento, meio de cultura e antibióticos na regeneração in vitro de tecidos maduros de cultivares de citros. |
|
Conteúdo: |
The objective of this study was to evaluate the effects of 6-benzylaminopurine (BAP) and ?-naphthaleneacetic acid (NAA) combinations, basal media and beta-lactam antibiotics on in vitro organogenesis from mature stem segments of 'PÛra', 'ValÛncia' and 'Bahia' sweet oranges and 'Cravo' rangpur lime. For induction of shoot regeneration, the segments of the four cultivars were placed on Murashige and Skoog (MS) medium containing the following BAP/NAA concentrations: 0.0/0.0; 0.25/0.0; 0.25/0.25; 0.5/0.0; 0.5/0.5; 1.0/0.0; 2.0/0.0; 2.0/0.25; 2.0/0.5; and 2.0/1.0ámgáL-1. In order to test the influence of the culture media on shoot-bud induction, (MS), Murashige and Tucker (MT), and woody plant medium (WPM) formulations were evaluated, associated with the best combination of plant growth regulators obtained in the previous experiment. The influence of four beta-lactam antibiotics (timentin, cefotaxime sodium salt, meropenem trihydrate and augmentin) on shoot regeneration was determined. Better regeneration responses were achieved when internodal segments were cultured onto MS-based medium with 500 mg L-1 cefotaxime with the following BAP/NAA concentrations: 0.5 + 0.25 mg L-1 for 'Cravo', 1.0 + 0.25 mg L-1 for 'Valência' and 'Bahia', and 1.0 + 0.5 mg L-1 for 'Pêra'. Genotype, growth regulators, basal media and beta-lactam antibiotics affect the morphogenetic response in mature tissues of citrus. |
|
Palavras-Chave: |
Adult tissues; C sinensis. |
|
Thesagro: |
Citrus Limonia. |
|
Thesaurus Nal: |
Antibiotics; Organogenesis. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/105846/1/Growth-regulators.pdf
|
|
Marc: |
LEADER 02263naa a2200229 a 4500
001 1864099
005 2018-04-30
008 2010 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, M. L. P. de
245 $aGrowth regulators, culture media and antibiotics in the in vitro shoot regeneration from mature tissue of citrus cultivars.
260 $c2010
500 $aTítulo em português: Reguladores de crescimento, meio de cultura e antibióticos na regeneração in vitro de tecidos maduros de cultivares de citros.
520 $aThe objective of this study was to evaluate the effects of 6-benzylaminopurine (BAP) and ?-naphthaleneacetic acid (NAA) combinations, basal media and beta-lactam antibiotics on in vitro organogenesis from mature stem segments of 'PÛra', 'ValÛncia' and 'Bahia' sweet oranges and 'Cravo' rangpur lime. For induction of shoot regeneration, the segments of the four cultivars were placed on Murashige and Skoog (MS) medium containing the following BAP/NAA concentrations: 0.0/0.0; 0.25/0.0; 0.25/0.25; 0.5/0.0; 0.5/0.5; 1.0/0.0; 2.0/0.0; 2.0/0.25; 2.0/0.5; and 2.0/1.0ámgáL-1. In order to test the influence of the culture media on shoot-bud induction, (MS), Murashige and Tucker (MT), and woody plant medium (WPM) formulations were evaluated, associated with the best combination of plant growth regulators obtained in the previous experiment. The influence of four beta-lactam antibiotics (timentin, cefotaxime sodium salt, meropenem trihydrate and augmentin) on shoot regeneration was determined. Better regeneration responses were achieved when internodal segments were cultured onto MS-based medium with 500 mg L-1 cefotaxime with the following BAP/NAA concentrations: 0.5 + 0.25 mg L-1 for 'Cravo', 1.0 + 0.25 mg L-1 for 'Valência' and 'Bahia', and 1.0 + 0.5 mg L-1 for 'Pêra'. Genotype, growth regulators, basal media and beta-lactam antibiotics affect the morphogenetic response in mature tissues of citrus.
650 $aAntibiotics
650 $aOrganogenesis
650 $aCitrus Limonia
653 $aAdult tissues
653 $aC sinensis
700 1 $aCOSTA, M. G. C.
700 1 $aSILVA, C. V. da
700 1 $aOTONI, W. C.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 45, n. 7, p.654-660, jul. 2010
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Pecuária Sudeste. |
|
Data corrente: |
30/12/2020 |
|
Data da última atualização: |
11/01/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
ANDRADE, T. S. de; ALBERTINI, T. Z.; BARIONI, L. G.; MEDEIROS, S. R. de; MILLEN, D. D.; SANTOS, A. C. R. dos; GOULART, R. S.; LANNA, D. P. D. |
|
Afiliação: |
THIAGO SÉRGIO DE ANDRADE, Esalq/USP; TIAGO ZANETT ALBERTINI, @Tech; LUIS GUSTAVO BARIONI, CNPTIA; SERGIO RAPOSO DE MEDEIROS, CPPSE; DANILO DOMINGUES MILLEN, Unesp; ANTÔNIO CARLOS RAMOS DOS SANTOS, Esalq/USP; RODRIGO SILVA GOULART, FZEA/USP; DANTE PAZZANESE DUARTE LANNA, Esalq/USP. |
|
Título: |
Perception of consultants, feedlot owners, and packers regarding the optimal economic slaughter endpoint in feedlots: a national survey in Brazil (Part I). |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Canadian Journal of Animal Science, v. 100, n. 4, p. 745-758, 2020. |
|
DOI: |
https://doi.org/10.1139/cjas-2019-0219 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract. Little information exists regarding the optimal economic slaughter endpoint (OSE) for feedlot-finished cattle in Brazil. This study investigated the perceptions of Brazilian feeders regarding the optimal time for slaughter. A total of 52 interviews were conducted involving nutritionist-consultants (n=23), feedlot owners (n=21), and packer-owned feedlots (n=8). The results showed that 65% of the interviewees used weight and fat cover, both estimated visually, to determine the moment for slaughter. Identifying the ideal time for slaughter was considered a challenge for respondents, and 85% of them recognized that their current slaughter endpoint identification method needed improvements. Regarding decision support systems, 58% of respondents reported they would purchase a computer program to help identify OSE, and 73% would be interested in incorporating a prototype of such a system into their feedlots. Carcass dressing (38%) and price (25%) were the main factors driving the feeder´s choice of meatpacker, followed by carcass premiums (10%). Meat quality was found to be an irrelevant criterion for Brazilian meatpackers in awarding both premiums (5%) and deductions (3%). Slaughter endpoint is determined subjectively by the Brazilian feeders, based on a visual evaluation of both weight and fatness |
|
Palavras-Chave: |
Carcass; Feedlot; Management. |
|
Thesagro: |
Carcaça; Confinamento; Gado; Gado de Corte. |
|
Thesaurus NAL: |
Beef; Beef cattle; Cattle; Feedlots. |
|
Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 02363naa a2200349 a 4500
001 2128876
005 2021-01-11
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1139/cjas-2019-0219$2DOI
100 1 $aANDRADE, T. S. de
245 $aPerception of consultants, feedlot owners, and packers regarding the optimal economic slaughter endpoint in feedlots$ba national survey in Brazil (Part I).$h[electronic resource]
260 $c2020
520 $aAbstract. Little information exists regarding the optimal economic slaughter endpoint (OSE) for feedlot-finished cattle in Brazil. This study investigated the perceptions of Brazilian feeders regarding the optimal time for slaughter. A total of 52 interviews were conducted involving nutritionist-consultants (n=23), feedlot owners (n=21), and packer-owned feedlots (n=8). The results showed that 65% of the interviewees used weight and fat cover, both estimated visually, to determine the moment for slaughter. Identifying the ideal time for slaughter was considered a challenge for respondents, and 85% of them recognized that their current slaughter endpoint identification method needed improvements. Regarding decision support systems, 58% of respondents reported they would purchase a computer program to help identify OSE, and 73% would be interested in incorporating a prototype of such a system into their feedlots. Carcass dressing (38%) and price (25%) were the main factors driving the feeder´s choice of meatpacker, followed by carcass premiums (10%). Meat quality was found to be an irrelevant criterion for Brazilian meatpackers in awarding both premiums (5%) and deductions (3%). Slaughter endpoint is determined subjectively by the Brazilian feeders, based on a visual evaluation of both weight and fatness
650 $aBeef
650 $aBeef cattle
650 $aCattle
650 $aFeedlots
650 $aCarcaça
650 $aConfinamento
650 $aGado
650 $aGado de Corte
653 $aCarcass
653 $aFeedlot
653 $aManagement
700 1 $aALBERTINI, T. Z.
700 1 $aBARIONI, L. G.
700 1 $aMEDEIROS, S. R. de
700 1 $aMILLEN, D. D.
700 1 $aSANTOS, A. C. R. dos
700 1 $aGOULART, R. S.
700 1 $aLANNA, D. P. D.
773 $tCanadian Journal of Animal Science$gv. 100, n. 4, p. 745-758, 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
