| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Hortaliças. |
|
Data corrente: |
05/10/2012 |
|
Data da última atualização: |
05/10/2012 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SILVA, G. O. da; VIEIRA, J. V.; CARVALHO, A. D. F. de. |
|
Afiliação: |
GIOVANI OLEGARIO DA SILVA, CNPH; JAIRO VIDAL VIEIRA, CNPH; AGNALDO DONIZETE FERREIRA DE CARVAL, CNPH. |
|
Título: |
Ganhos genéticos para caracteres de raiz em populações de cenoura nos sistemas orgânico e convencional de produção. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
Horticultura Brasileira, Brasília, DF, v. 30, n. 3, p. 473-479, jul./set. 2012. |
|
ISSN: |
0102-0536 |
|
Idioma: |
Português |
|
Palavras-Chave: |
Cultivo convencional; Cultivo orgânico; Ganho genético. |
|
Thesagro: |
Cenoura; Daucus Carota; Raiz. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 00682naa a2200217 a 4500
001 1935721
005 2012-10-05
008 2012 bl uuuu u00u1 u #d
022 $a0102-0536
100 1 $aSILVA, G. O. da
245 $aGanhos genéticos para caracteres de raiz em populações de cenoura nos sistemas orgânico e convencional de produção.
260 $c2012
650 $aCenoura
650 $aDaucus Carota
650 $aRaiz
653 $aCultivo convencional
653 $aCultivo orgânico
653 $aGanho genético
700 1 $aVIEIRA, J. V.
700 1 $aCARVALHO, A. D. F. de
773 $tHorticultura Brasileira, Brasília, DF$gv. 30, n. 3, p. 473-479, jul./set. 2012.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Hortaliças (CNPH) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
17/06/2010 |
|
Data da última atualização: |
04/06/2018 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
PARENTONI, S. N.; SOUZA JUNIOR, C. L. de; ALVES, V. M. C.; GAMA, E. E. G. e; COELHO, A. M.; OLIVEIRA, A. C. de; GUIMARAES, P. E. de O.; GUIMARAES, C. T.; VASCONCELOS, M. J. V. de; PACHECO, C. A. P.; MEIRELLES, W. F.; MAGALHAES, J. V. de; GUIMARAES, L. J. M.; SILVA, A. R. da; MENDES, F. F.; SCHAFFERT, R. E. |
|
Afiliação: |
SIDNEY NETTO PARENTONI, CNPMS; CLAUDIO LOPES DE SOUZA JUNIOR, ESALQ; VERA MARIA CARVALHO ALVES, CNPMS; ELTO EUGENIO GOMES E GAMA, Pesquisador Aposentado CNPMS; ANTONIO MARCOS COELHO, CNPMS; ANTONIO CARLOS DE OLIVEIRA, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; MARIA JOSE VILACA DE VASCONCELOS, CNPMS; CLESO ANTONIO PATTO PACHECO, CNPMS; WALTER FERNANDES MEIRELLES, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS; LAURO JOSE MOREIRA GUIMARAES, CNPMS; ADELMO RESENDE DA SILVA, CNPMS; FLAVIA F. MENDES, UFLA; ROBERT EUGENE SCHAFFERT, CNPMS. |
|
Título: |
Inheritance and breeding strategies for phosphorus efficiency in tropical maize (Zea mays L.). |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
Maydica, Bergamo, v. 55, n. 1, p. 1-15, 2010. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Information available from full cycle maize trials regarding the inheritance of phosphorus (P) efficiency in tropical maize is limited. This type of information is essential to establish selection strategies for these characteristics. The objective of this study was to investigate the inheritance and relationships between characteristics related to phosphorus efficiency in tropical maize. Six tropical maize lines with contrasting P efficiency and seven F1 crosses derived from these lines were used in this study. The parental lines, the F1'S, F2'S, BC1P1, BC1P2, BC2P1 and BC2P2 from each of the seven crosses were evaluated in three low P and two high P environments. Efficiency traits evaluated were: grain yield (GY), stover yield, (SY), grain P concentration (GPC), stover P concentration (SPC), P acquisition efficiency (PAE), P internal utilization efficiency (PUTlL), P harvest index (PHI) and the quotient of P utilization (QunL). Anther silk interval (ASO, which has been related to drought tolerance, was also determined. For each trait, the following paramelers were estimated: mean effect (m), additive effects (a), dominam effects (d) and epistatic digenic effects (aa, ad, dd). A 47% mean yield reduction was observed at the low P level compared with the high P level in the soil. Dominance effects and epistatic effects (when detected) were more important than additive effects for the majority of the traits studied. A low correlation for PAE was observed between low and high P environments, suggesting that different mechanisms of soil P acquisition occur in low and high P environments. For the PUTlL a high correlation was observed between low and high P environments, suggesting that similar plant internal mechanisms occur in both soil P leveis. A medium and negative correlation was observed between ASI and GY at low P environments. Our results suggest that the selection criteria adequate to select for P efficiency indude GY under low P environments to determine PAE under low P soils, and grain P concentrarion under high P environments to determine PUTIL. MenosInformation available from full cycle maize trials regarding the inheritance of phosphorus (P) efficiency in tropical maize is limited. This type of information is essential to establish selection strategies for these characteristics. The objective of this study was to investigate the inheritance and relationships between characteristics related to phosphorus efficiency in tropical maize. Six tropical maize lines with contrasting P efficiency and seven F1 crosses derived from these lines were used in this study. The parental lines, the F1'S, F2'S, BC1P1, BC1P2, BC2P1 and BC2P2 from each of the seven crosses were evaluated in three low P and two high P environments. Efficiency traits evaluated were: grain yield (GY), stover yield, (SY), grain P concentration (GPC), stover P concentration (SPC), P acquisition efficiency (PAE), P internal utilization efficiency (PUTlL), P harvest index (PHI) and the quotient of P utilization (QunL). Anther silk interval (ASO, which has been related to drought tolerance, was also determined. For each trait, the following paramelers were estimated: mean effect (m), additive effects (a), dominam effects (d) and epistatic digenic effects (aa, ad, dd). A 47% mean yield reduction was observed at the low P level compared with the high P level in the soil. Dominance effects and epistatic effects (when detected) were more important than additive effects for the majority of the traits studied. A low correlation for PAE was observed between low and high P... Mostrar Tudo |
|
Thesagro: |
Fósforo; Melhoramento; Milho. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03069naa a2200337 a 4500
001 1855391
005 2018-06-04
008 2010 bl uuuu u00u1 u #d
100 1 $aPARENTONI, S. N.
245 $aInheritance and breeding strategies for phosphorus efficiency in tropical maize (Zea mays L.).$h[electronic resource]
260 $c2010
520 $aInformation available from full cycle maize trials regarding the inheritance of phosphorus (P) efficiency in tropical maize is limited. This type of information is essential to establish selection strategies for these characteristics. The objective of this study was to investigate the inheritance and relationships between characteristics related to phosphorus efficiency in tropical maize. Six tropical maize lines with contrasting P efficiency and seven F1 crosses derived from these lines were used in this study. The parental lines, the F1'S, F2'S, BC1P1, BC1P2, BC2P1 and BC2P2 from each of the seven crosses were evaluated in three low P and two high P environments. Efficiency traits evaluated were: grain yield (GY), stover yield, (SY), grain P concentration (GPC), stover P concentration (SPC), P acquisition efficiency (PAE), P internal utilization efficiency (PUTlL), P harvest index (PHI) and the quotient of P utilization (QunL). Anther silk interval (ASO, which has been related to drought tolerance, was also determined. For each trait, the following paramelers were estimated: mean effect (m), additive effects (a), dominam effects (d) and epistatic digenic effects (aa, ad, dd). A 47% mean yield reduction was observed at the low P level compared with the high P level in the soil. Dominance effects and epistatic effects (when detected) were more important than additive effects for the majority of the traits studied. A low correlation for PAE was observed between low and high P environments, suggesting that different mechanisms of soil P acquisition occur in low and high P environments. For the PUTlL a high correlation was observed between low and high P environments, suggesting that similar plant internal mechanisms occur in both soil P leveis. A medium and negative correlation was observed between ASI and GY at low P environments. Our results suggest that the selection criteria adequate to select for P efficiency indude GY under low P environments to determine PAE under low P soils, and grain P concentrarion under high P environments to determine PUTIL.
650 $aFósforo
650 $aMelhoramento
650 $aMilho
700 1 $aSOUZA JUNIOR, C. L. de
700 1 $aALVES, V. M. C.
700 1 $aGAMA, E. E. G. e
700 1 $aCOELHO, A. M.
700 1 $aOLIVEIRA, A. C. de
700 1 $aGUIMARAES, P. E. de O.
700 1 $aGUIMARAES, C. T.
700 1 $aVASCONCELOS, M. J. V. de
700 1 $aPACHECO, C. A. P.
700 1 $aMEIRELLES, W. F.
700 1 $aMAGALHAES, J. V. de
700 1 $aGUIMARAES, L. J. M.
700 1 $aSILVA, A. R. da
700 1 $aMENDES, F. F.
700 1 $aSCHAFFERT, R. E.
773 $tMaydica, Bergamo$gv. 55, n. 1, p. 1-15, 2010.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
