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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
16/06/2015 |
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Data da última atualização: |
25/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSTA, E. M. R.; SILVA, K. J. D. e; ROCHA, M. de M.; MEDEIROS, A. M.; ANUNCIAÇÃO FILHO, C. J. |
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Afiliação: |
E.M.R. Costa, Universidade Federal Rural de Pernambuco, Departamento de Agronomia.; KAESEL JACKSON DAMASCENO E SILVA, CPAMN; MAURISRAEL DE MOURA ROCHA, CPAMN; A.M. Medeiros, Universidade Federal do Piauí.; C.J. Anunciação Filho, Universidade Federal Rural de Pernambuco, Departamento de Agronomia. |
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Título: |
Genetic divergence among African cowpea lines based on morphoagronomic traits. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Genetics and Molecular Research, Ribeirão Preto, v. 12, n. 4, p. 6773-6781, Dec. 2013. |
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DOI: |
http://dx.doi.org/10.4238/2013.December.16.3 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to estimate the genetic divergence between African cowpea lines from the Cowpea Germplasm Bank of Embrapa Meio-Norte, Brazil. The morphoagronomic diversity of 57 cowpea lines was assessed using multivariate analysis. The germplasm was evaluated in August 2009 using a randomized block design with three replications based on the following traits: number of pods per peduncle, pod length (PL), number of grains per pod (NGP), grain length (GRL), grain width, 100-grain weight (W100G), and yield. The heritability values of the traits PL, NGP, GRL, and W100G were all higher than 70%, indicating the possibility of genetic progress with selection. The crosses between the lines IT82D-889 and IT89KD-245, IT85F-1380 and IT89KD-245, and IT89KD-245 and IT98K-1092-1 could result in promising genetic combinations. The characteristics that contributed most to genetic divergence were W100G (49.7%), PL (16.7%), GRL (12.0%), and NGP (9.7%). |
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Palavras-Chave: |
Acessos de caupi; Cowpea accessions; Germplasm bank. |
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Thesagro: |
Banco de germoplasma; Feijao de corda; Método estatístico; Vigna unguiculata. |
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Thesaurus Nal: |
Multivariate analysis. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/125435/1/ArtigoKaeselGMR2013.pdf
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Marc: |
LEADER 01832naa a2200277 a 4500
001 2017735
005 2022-05-25
008 2013 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.4238/2013.December.16.3$2DOI
100 1 $aCOSTA, E. M. R.
245 $aGenetic divergence among African cowpea lines based on morphoagronomic traits.
260 $c2013
520 $aThe aim of this study was to estimate the genetic divergence between African cowpea lines from the Cowpea Germplasm Bank of Embrapa Meio-Norte, Brazil. The morphoagronomic diversity of 57 cowpea lines was assessed using multivariate analysis. The germplasm was evaluated in August 2009 using a randomized block design with three replications based on the following traits: number of pods per peduncle, pod length (PL), number of grains per pod (NGP), grain length (GRL), grain width, 100-grain weight (W100G), and yield. The heritability values of the traits PL, NGP, GRL, and W100G were all higher than 70%, indicating the possibility of genetic progress with selection. The crosses between the lines IT82D-889 and IT89KD-245, IT85F-1380 and IT89KD-245, and IT89KD-245 and IT98K-1092-1 could result in promising genetic combinations. The characteristics that contributed most to genetic divergence were W100G (49.7%), PL (16.7%), GRL (12.0%), and NGP (9.7%).
650 $aMultivariate analysis
650 $aBanco de germoplasma
650 $aFeijao de corda
650 $aMétodo estatístico
650 $aVigna unguiculata
653 $aAcessos de caupi
653 $aCowpea accessions
653 $aGermplasm bank
700 1 $aSILVA, K. J. D. e
700 1 $aROCHA, M. de M.
700 1 $aMEDEIROS, A. M.
700 1 $aANUNCIAÇÃO FILHO, C. J.
773 $tGenetics and Molecular Research, Ribeirão Preto$gv. 12, n. 4, p. 6773-6781, Dec. 2013.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pesca e Aquicultura. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
30/06/2020 |
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Data da última atualização: |
01/07/2020 |
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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: |
OLIVEIRA, S. M. de; CIAMPITTI, I. A.; ALMEIDA, R. E. M. de; PIEROZAN JUNIOR, C.; TRIVELIN, P. C. O.; FAVARIN, J. L. |
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Afiliação: |
SILAS MACIEL DE OLIVEIRA, ESALQ; IGNACIO A. CIAMPITTI, KANSAS STATE UNIVERSITY; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; CLOVIS PIEROZAN JUNIOR; PAULO CESAR OCHEUZE TRIVELIN, CENA; JOSE LAERCIO FAVARIN, ESALQ. |
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Título: |
Closing the nitrogen budget of intercropped maize and palisadegrass. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
European Journal of Agronomy, v. 119, 126093, 2020. |
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ISSN: |
1161-0301 |
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DOI: |
https://doi.org/10.1016/j.eja.2020.126093 |
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Idioma: |
Inglês |
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Conteúdo: |
In tropical agriculture, maize (Zea mays L.) intercropped with palisadegrass (Brachiaria brizantha cv. Marandu) is considered a highly relevant cropping system to deliver both residue and forage. However, the benefits of inclusion of palisadegrass in maize systems and its influence on fertilizer dynamics and nitrogen (N) budget as well as the period after maize harvest for which palisadegrass continues to grow remain unclear. Thus, we conducted field studies to determine crop growth, end-season biomass, N fertilizer recovery, and overall N budget between an intercrop and a monoculture at two different sites during conventional and late-planted maize seasons. The cropping systems evaluated were maize and palisadegrass in monocultures and two intercrop patterns, serving as cover crop or forage with simulated grazing. From planting to grain harvest, intercrop patterns did not affect grain yield, final N content, and N fertilizer dynamics. Post-harvest, palisadegrass from intercrop patterns improved biomass from 1 to 10 Mg ha?1 and N content from 8 to 300 kg ha?1, relative to fallow after maize monoculture. Contribution of palisadegrass intercropping on N fertilizer recovery was low at approximately 4.5 kg ha-1 when both the crops were growing simultaneously and approximately 2.4 kg ha?1 following maize grain harvest. In three out of four sites over 2 years, intercrop patterns did not affect total N fertilizer recovery compared with their monocultures, averaging at approximately 51 %. Advantages of maize-palisadegrass intercropping on biomass, yield, and N cycling were documented at the site where maize was planted during the conventional season, despite the yearly variation in weather conditions. A negative N budget of ?230 kg ha?1 was estimated when grazing was simulated during the conventional maize planting season, suggesting greater N requirements of the intercropped palisadegrass when serving as forage. MenosIn tropical agriculture, maize (Zea mays L.) intercropped with palisadegrass (Brachiaria brizantha cv. Marandu) is considered a highly relevant cropping system to deliver both residue and forage. However, the benefits of inclusion of palisadegrass in maize systems and its influence on fertilizer dynamics and nitrogen (N) budget as well as the period after maize harvest for which palisadegrass continues to grow remain unclear. Thus, we conducted field studies to determine crop growth, end-season biomass, N fertilizer recovery, and overall N budget between an intercrop and a monoculture at two different sites during conventional and late-planted maize seasons. The cropping systems evaluated were maize and palisadegrass in monocultures and two intercrop patterns, serving as cover crop or forage with simulated grazing. From planting to grain harvest, intercrop patterns did not affect grain yield, final N content, and N fertilizer dynamics. Post-harvest, palisadegrass from intercrop patterns improved biomass from 1 to 10 Mg ha?1 and N content from 8 to 300 kg ha?1, relative to fallow after maize monoculture. Contribution of palisadegrass intercropping on N fertilizer recovery was low at approximately 4.5 kg ha-1 when both the crops were growing simultaneously and approximately 2.4 kg ha?1 following maize grain harvest. In three out of four sites over 2 years, intercrop patterns did not affect total N fertilizer recovery compared with their monocultures, averaging at approximately... Mostrar Tudo |
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Palavras-Chave: |
Difference method; Integrated farming; Nitrogen recovery efficiency. |
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Thesagro: |
Brachiaria Brizantha; Consorciação de Cultura; Milho; Nitrogênio; Zea Mays. |
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Thesaurus NAL: |
Corn; Nitrogen balance. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02892naa a2200325 a 4500
001 2123518
005 2020-07-01
008 2020 bl uuuu u00u1 u #d
022 $a1161-0301
024 7 $ahttps://doi.org/10.1016/j.eja.2020.126093$2DOI
100 1 $aOLIVEIRA, S. M. de
245 $aClosing the nitrogen budget of intercropped maize and palisadegrass.$h[electronic resource]
260 $c2020
520 $aIn tropical agriculture, maize (Zea mays L.) intercropped with palisadegrass (Brachiaria brizantha cv. Marandu) is considered a highly relevant cropping system to deliver both residue and forage. However, the benefits of inclusion of palisadegrass in maize systems and its influence on fertilizer dynamics and nitrogen (N) budget as well as the period after maize harvest for which palisadegrass continues to grow remain unclear. Thus, we conducted field studies to determine crop growth, end-season biomass, N fertilizer recovery, and overall N budget between an intercrop and a monoculture at two different sites during conventional and late-planted maize seasons. The cropping systems evaluated were maize and palisadegrass in monocultures and two intercrop patterns, serving as cover crop or forage with simulated grazing. From planting to grain harvest, intercrop patterns did not affect grain yield, final N content, and N fertilizer dynamics. Post-harvest, palisadegrass from intercrop patterns improved biomass from 1 to 10 Mg ha?1 and N content from 8 to 300 kg ha?1, relative to fallow after maize monoculture. Contribution of palisadegrass intercropping on N fertilizer recovery was low at approximately 4.5 kg ha-1 when both the crops were growing simultaneously and approximately 2.4 kg ha?1 following maize grain harvest. In three out of four sites over 2 years, intercrop patterns did not affect total N fertilizer recovery compared with their monocultures, averaging at approximately 51 %. Advantages of maize-palisadegrass intercropping on biomass, yield, and N cycling were documented at the site where maize was planted during the conventional season, despite the yearly variation in weather conditions. A negative N budget of ?230 kg ha?1 was estimated when grazing was simulated during the conventional maize planting season, suggesting greater N requirements of the intercropped palisadegrass when serving as forage.
650 $aCorn
650 $aNitrogen balance
650 $aBrachiaria Brizantha
650 $aConsorciação de Cultura
650 $aMilho
650 $aNitrogênio
650 $aZea Mays
653 $aDifference method
653 $aIntegrated farming
653 $aNitrogen recovery efficiency
700 1 $aCIAMPITTI, I. A.
700 1 $aALMEIDA, R. E. M. de
700 1 $aPIEROZAN JUNIOR, C.
700 1 $aTRIVELIN, P. C. O.
700 1 $aFAVARIN, J. L.
773 $tEuropean Journal of Agronomy$gv. 119, 126093, 2020.
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Embrapa Pesca e Aquicultura (CNPASA) |
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