| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
26/08/2003 |
|
Data da última atualização: |
05/04/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
LOURENÇO JUNIOR, J. de B.; BATISTA, H. A. M.; COSTA, N. A. da; CARVALHO, L. O. D. de M.; DUTRA, S.; VASCONCELOS, I. M. M. P. |
|
Afiliação: |
JOSE DE BRITO LOURENCO JUNIOR, CPATU; HERIBERTO ANTONIO MARQUES BATISTA, CPATU; NORTON AMADOR DA COSTA, CPATU; LUIZ OCTAVIO DANIN DE M CARVALHO, CPATU; SATURNINO DUTRA, CPATU. |
|
Título: |
Influência de variáveis climáticas na concepção de búfalas Murrah. |
|
Ano de publicação: |
2001 |
|
Fonte/Imprenta: |
Revista Brasileira de Reprodução Animal, v. 25, n. 2, p. 138-140, 2001. |
|
Descrição Física: |
il. |
|
Idioma: |
Português |
|
Conteúdo: |
Foram analisados dados de fertilidade de uni rebanho de búfalos da raça Murrah, provenientes de sêmen importado da Bulgária, para determinar o efeito de variáveis climáticas na concepção. Foi utilizado o rebanho leiteiro de mestiços da raça Murrah da Embrapa Amazônia Oriental, em Belém, Pará, criados em pastagem cultivada no período de 1993 a 1998. A análise estatística foi efetuada através do programa SAS. Cerca de 83% das fecundações ocorreram entre maio e outubro, com 57% na época menos chuvosa. Houve associação negativa entre fecundação e precipitação pluviométrica e positiva com a insolação. A adequação do ambiente físico, em conjunto com a alimentação e manejo reprodutivo é imprescindível para se elevar os índices reprodutivos do rebanho bubalino na Amazônia. |
|
Palavras-Chave: |
Belém; Brasil; Pará; Variação climática. |
|
Thesagro: |
Biotecnologia; Búfalo; Fertilidade. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/403861/1/InfluenciaVariaveisClimaticasBufalasMurrahRBRA2001.pdf
|
|
Marc: |
LEADER 01600naa a2200277 a 4500
001 1403861
005 2024-04-05
008 2001 bl uuuu u00u1 u #d
100 1 $aLOURENÇO JUNIOR, J. de B.
245 $aInfluência de variáveis climáticas na concepção de búfalas Murrah.$h[electronic resource]
260 $c2001
300 $cil.
520 $aForam analisados dados de fertilidade de uni rebanho de búfalos da raça Murrah, provenientes de sêmen importado da Bulgária, para determinar o efeito de variáveis climáticas na concepção. Foi utilizado o rebanho leiteiro de mestiços da raça Murrah da Embrapa Amazônia Oriental, em Belém, Pará, criados em pastagem cultivada no período de 1993 a 1998. A análise estatística foi efetuada através do programa SAS. Cerca de 83% das fecundações ocorreram entre maio e outubro, com 57% na época menos chuvosa. Houve associação negativa entre fecundação e precipitação pluviométrica e positiva com a insolação. A adequação do ambiente físico, em conjunto com a alimentação e manejo reprodutivo é imprescindível para se elevar os índices reprodutivos do rebanho bubalino na Amazônia.
650 $aBiotecnologia
650 $aBúfalo
650 $aFertilidade
653 $aBelém
653 $aBrasil
653 $aPará
653 $aVariação climática
700 1 $aBATISTA, H. A. M.
700 1 $aCOSTA, N. A. da
700 1 $aCARVALHO, L. O. D. de M.
700 1 $aDUTRA, S.
700 1 $aVASCONCELOS, I. M. M. P.
773 $tRevista Brasileira de Reprodução Animal$gv. 25, n. 2, p. 138-140, 2001.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
11/04/2000 |
|
Data da última atualização: |
15/10/2004 |
|
Autoria: |
NEPOMUCENO, A. L.; NEUMAIER, N.; FARIAS, J. R. B.; CASAGRANDE, E. |
|
Título: |
Gene expression in brazilian soybean genotypes tolerant to water deficit. |
|
Ano de publicação: |
1999 |
|
Fonte/Imprenta: |
In: WORLD SOYBEAN RESEARCH CONFERENCE, 6., 1999, Chicago. Proceedings: invited and contributed papers and posters. Chicago: University of Illinois / Soybean Research & Development Council, 1999. |
|
Páginas: |
p.439. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abiotic stresses such as drought can significantly reduce crop yields and restrict the areas on which crops can be cultivated. The implications of this are tremendous since not only are producers affected but the entire society also. The development of new cultivars more tolerant to water deficits is one of the options to attenuate this problem. However, tolerance to drought in plants clearly is not a simple trait, but a complex of mechanisms working in combination to avoid or to tolerate water deficits. All mechanisms that plants use to tolerate drought do have a molecular/genetic basis. Comparison of gene expression in different genotypes and treatments should provide underlying information needed to analyze the biological processes that control how organisms respond to stress situations. This work has been conducted with the main objective of identifying, cloning and sequencing genes differentially expressed during water deficit in Brazilian soybean genotypes tolerant to drought. Physiological characterization results showed that cultivars BR-4 and OCEPAR 4 have a higher tolerance for periods of drought when compared with cultivars BR-16 and BRAGG. These four soybean genotypes are now been analyzed with the use of Differential Display (DD) a technique that uses mRNA as template to obtain representative cDNAs by reverse transcription and polymerase chain reaction. Differentially expressed cDNAs are extracted from the gel, cloned and sequenced. Earlier work conducted with cotton identified 52 mRNA transcripts differentially expressed during drought. Some of these transcript sequences were transformed in probes to survey Embrapa soybean germplasm bank to see if transcripts of these same gene families are expressed in soybean during water deficit. The differentially expressed mRNA transcripts identified in soybean can also be used as probes to screen germplasm. Plant physiological studies on responses to water deficit, molecular mapping of traits related to drought tolerance and the development of drought tolerant genotypes might be helped by these results. Furthermore, some of the identified genes may show a high potential for plant transformation studies. MenosAbiotic stresses such as drought can significantly reduce crop yields and restrict the areas on which crops can be cultivated. The implications of this are tremendous since not only are producers affected but the entire society also. The development of new cultivars more tolerant to water deficits is one of the options to attenuate this problem. However, tolerance to drought in plants clearly is not a simple trait, but a complex of mechanisms working in combination to avoid or to tolerate water deficits. All mechanisms that plants use to tolerate drought do have a molecular/genetic basis. Comparison of gene expression in different genotypes and treatments should provide underlying information needed to analyze the biological processes that control how organisms respond to stress situations. This work has been conducted with the main objective of identifying, cloning and sequencing genes differentially expressed during water deficit in Brazilian soybean genotypes tolerant to drought. Physiological characterization results showed that cultivars BR-4 and OCEPAR 4 have a higher tolerance for periods of drought when compared with cultivars BR-16 and BRAGG. These four soybean genotypes are now been analyzed with the use of Differential Display (DD) a technique that uses mRNA as template to obtain representative cDNAs by reverse transcription and polymerase chain reaction. Differentially expressed cDNAs are extracted from the gel, cloned and sequenced. Earlier work conducted with c... Mostrar Tudo |
|
Palavras-Chave: |
Brasil; Soybean; Tolerancia a seca. |
|
Thesagro: |
Soja. |
|
Thesaurus NAL: |
Brazil; soil water deficit. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02965naa a2200241 a 4500
001 1461655
005 2004-10-15
008 1999 bl uuuu u00u1 u #d
100 1 $aNEPOMUCENO, A. L.
245 $aGene expression in brazilian soybean genotypes tolerant to water deficit.
260 $c1999
300 $ap.439.
520 $aAbiotic stresses such as drought can significantly reduce crop yields and restrict the areas on which crops can be cultivated. The implications of this are tremendous since not only are producers affected but the entire society also. The development of new cultivars more tolerant to water deficits is one of the options to attenuate this problem. However, tolerance to drought in plants clearly is not a simple trait, but a complex of mechanisms working in combination to avoid or to tolerate water deficits. All mechanisms that plants use to tolerate drought do have a molecular/genetic basis. Comparison of gene expression in different genotypes and treatments should provide underlying information needed to analyze the biological processes that control how organisms respond to stress situations. This work has been conducted with the main objective of identifying, cloning and sequencing genes differentially expressed during water deficit in Brazilian soybean genotypes tolerant to drought. Physiological characterization results showed that cultivars BR-4 and OCEPAR 4 have a higher tolerance for periods of drought when compared with cultivars BR-16 and BRAGG. These four soybean genotypes are now been analyzed with the use of Differential Display (DD) a technique that uses mRNA as template to obtain representative cDNAs by reverse transcription and polymerase chain reaction. Differentially expressed cDNAs are extracted from the gel, cloned and sequenced. Earlier work conducted with cotton identified 52 mRNA transcripts differentially expressed during drought. Some of these transcript sequences were transformed in probes to survey Embrapa soybean germplasm bank to see if transcripts of these same gene families are expressed in soybean during water deficit. The differentially expressed mRNA transcripts identified in soybean can also be used as probes to screen germplasm. Plant physiological studies on responses to water deficit, molecular mapping of traits related to drought tolerance and the development of drought tolerant genotypes might be helped by these results. Furthermore, some of the identified genes may show a high potential for plant transformation studies.
650 $aBrazil
650 $asoil water deficit
650 $aSoja
653 $aBrasil
653 $aSoybean
653 $aTolerancia a seca
700 1 $aNEUMAIER, N.
700 1 $aFARIAS, J. R. B.
700 1 $aCASAGRANDE, E.
773 $tIn: WORLD SOYBEAN RESEARCH CONFERENCE, 6., 1999, Chicago. Proceedings: invited and contributed papers and posters. Chicago: University of Illinois / Soybean Research & Development Council, 1999.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
