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Registro Completo |
Biblioteca(s): |
Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Pantanal; Embrapa Roraima. |
Data corrente: |
14/12/2000 |
Data da última atualização: |
15/09/2010 |
Autoria: |
SANTOS, P. C. T. C. dos; CARDOSO, A.; VIEIRA, L. S.; VIEIRA, M. de N. F.; PEREIRA, L. C.; COSTA, M. F. da; VALENTE, M. A. |
Título: |
Sistemas de produção para culturas alimentares consorciadas em várzeas do médio Amazonas. |
Ano de publicação: |
1984 |
Fonte/Imprenta: |
Belém, PA: FCAP, 1984. |
Páginas: |
40p. |
Série: |
(FCAP. Informe extensão, 5). |
Idioma: |
Português |
Conteúdo: |
Para as varzeas do Medio Amazonas foram caracterizados sistemas de producao para as culturas consorciadas de milho (Zea mays), arroz (Oryza sativa), caupi (Vigna unguiculata) e mandioca (Manihot esculenta) a serem implantados nos municipios de Obidos, Oriximina, Faro e Juruti. Sao destinados aos pequenos agricultores que utilizam um so sistema de manejo do solo. Sugere-se tambem utilizar irrigacao para as varzeas durante os periodos de estiagem acentuada. |
Palavras-Chave: |
Brasil; Caupi; Consorciação; Cultura alimentar; Cultural methods; Intercroping; Medio Amazonas; Pará; Planta alimenticia; Production of system. |
Thesagro: |
Agricultura; Arroz; Consorciação de Cultura; Mandioca; Milho; Pratica Cultural; Sistema de Produção; Várzea. |
Thesaurus Nal: |
agriculture; Amazonia; food crops; intercropping. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01683nam a2200469 a 4500 001 1382259 005 2010-09-15 008 1984 bl uuuu u0uu1 u #d 100 1 $aSANTOS, P. C. T. C. dos 245 $aSistemas de produção para culturas alimentares consorciadas em várzeas do médio Amazonas. 260 $aBelém, PA: FCAP$c1984 300 $a40p. 490 $a(FCAP. Informe extensão, 5). 520 $aPara as varzeas do Medio Amazonas foram caracterizados sistemas de producao para as culturas consorciadas de milho (Zea mays), arroz (Oryza sativa), caupi (Vigna unguiculata) e mandioca (Manihot esculenta) a serem implantados nos municipios de Obidos, Oriximina, Faro e Juruti. Sao destinados aos pequenos agricultores que utilizam um so sistema de manejo do solo. Sugere-se tambem utilizar irrigacao para as varzeas durante os periodos de estiagem acentuada. 650 $aagriculture 650 $aAmazonia 650 $afood crops 650 $aintercropping 650 $aAgricultura 650 $aArroz 650 $aConsorciação de Cultura 650 $aMandioca 650 $aMilho 650 $aPratica Cultural 650 $aSistema de Produção 650 $aVárzea 653 $aBrasil 653 $aCaupi 653 $aConsorciação 653 $aCultura alimentar 653 $aCultural methods 653 $aIntercroping 653 $aMedio Amazonas 653 $aPará 653 $aPlanta alimenticia 653 $aProduction of system 700 1 $aCARDOSO, A. 700 1 $aVIEIRA, L. S. 700 1 $aVIEIRA, M. de N. F. 700 1 $aPEREIRA, L. C. 700 1 $aCOSTA, M. F. da 700 1 $aVALENTE, M. A.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
23/02/2018 |
Data da última atualização: |
11/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
C - 0 |
Autoria: |
ALVES, G. F.; FIGUEIREDO, U. J. de; PANDOLFI FILHO, A. D.; BARRIOS, S. C. L.; VALLE, C. B. do. |
Afiliação: |
GEOVANI F. ALVES; ULISSES J. de FIGUEIREDO, Universidade Federal de Lavras; ANTÔNIO D. PANDOLFI FILHO, Universidade Federal do Espírito Santo; SANZIO CARVALHO LIMA BARRIOS, CNPGC; CACILDA BORGES DO VALLE, CNPGC. |
Título: |
Breeding strategies for Brachiaria spp. to improve productivity: an ongoing project. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Tropical Grassland - Forrajes Tropicales, v. 2, p. 1-3, 2014. |
ISSN: |
2346-3775 |
Idioma: |
Inglês |
Conteúdo: |
Two strategies have been used in the breeding of Brachiaria (syn. Urochloa) to produce new cultivars. The first involves exploring the natural variability exist-ing in nature, which is the selection of ecotypes, mostly apomicts, from the diversity in germplasm banks. This strategy proved efficient originally and the cultivars in use in Brazil were derived in this way, but progress with this strategy is limited in the medium to long term. The generation of novel variability through crossings is the alternative strategy to continue producing new improved varieties. This has been possible only through artificial chromosomal duplication of diploid and sexual B. ruziziensis and the fact that this species is cross-compatible with B. brizantha and B. decumbens, in Bra-zil the 2 most important species for tropical pastures. Crossings between species have been carried out at Embrapa Beef Cattle, Campo Grande, MS, Brazil, since 1988 (Valle et al. 1993, 2001; Valle 1997; Resende et al. 2007). The initial success in obtaining interspecific hy-brids in Brachiaria is indisputable and helped establish a practical methodology as well as allowed for the identi-fication of apomictic parents with good combining abil-ity. However, a comprehensive genetic improvement strategy to benefit from gains in quantitative characteris-tics associated with the majority of agronomic traits of economic interest in these species had not been started. Therefore, 3 methodologies are being used for this pur-pose: reciprocal recurrent selection; intra-population recurrent selection; and directed crosses between sexual and apomictic plants. The last 2 strategies are already underway and the strategies for agronomic evaluations are reported here. MenosTwo strategies have been used in the breeding of Brachiaria (syn. Urochloa) to produce new cultivars. The first involves exploring the natural variability exist-ing in nature, which is the selection of ecotypes, mostly apomicts, from the diversity in germplasm banks. This strategy proved efficient originally and the cultivars in use in Brazil were derived in this way, but progress with this strategy is limited in the medium to long term. The generation of novel variability through crossings is the alternative strategy to continue producing new improved varieties. This has been possible only through artificial chromosomal duplication of diploid and sexual B. ruziziensis and the fact that this species is cross-compatible with B. brizantha and B. decumbens, in Bra-zil the 2 most important species for tropical pastures. Crossings between species have been carried out at Embrapa Beef Cattle, Campo Grande, MS, Brazil, since 1988 (Valle et al. 1993, 2001; Valle 1997; Resende et al. 2007). The initial success in obtaining interspecific hy-brids in Brachiaria is indisputable and helped establish a practical methodology as well as allowed for the identi-fication of apomictic parents with good combining abil-ity. However, a comprehensive genetic improvement strategy to benefit from gains in quantitative characteris-tics associated with the majority of agronomic traits of economic interest in these species had not been started. Therefore, 3 methodologies are being used for this pur-pose... Mostrar Tudo |
Thesagro: |
Brachiaria; Produtividade. |
Thesaurus NAL: |
Apomixis; Interspecific hybridization; Tropical pastures. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02453naa a2200241 a 4500 001 2088118 005 2018-05-11 008 2014 bl uuuu u00u1 u #d 022 $a2346-3775 100 1 $aALVES, G. F. 245 $aBreeding strategies for Brachiaria spp. to improve productivity$ban ongoing project.$h[electronic resource] 260 $c2014 520 $aTwo strategies have been used in the breeding of Brachiaria (syn. Urochloa) to produce new cultivars. The first involves exploring the natural variability exist-ing in nature, which is the selection of ecotypes, mostly apomicts, from the diversity in germplasm banks. This strategy proved efficient originally and the cultivars in use in Brazil were derived in this way, but progress with this strategy is limited in the medium to long term. The generation of novel variability through crossings is the alternative strategy to continue producing new improved varieties. This has been possible only through artificial chromosomal duplication of diploid and sexual B. ruziziensis and the fact that this species is cross-compatible with B. brizantha and B. decumbens, in Bra-zil the 2 most important species for tropical pastures. Crossings between species have been carried out at Embrapa Beef Cattle, Campo Grande, MS, Brazil, since 1988 (Valle et al. 1993, 2001; Valle 1997; Resende et al. 2007). The initial success in obtaining interspecific hy-brids in Brachiaria is indisputable and helped establish a practical methodology as well as allowed for the identi-fication of apomictic parents with good combining abil-ity. However, a comprehensive genetic improvement strategy to benefit from gains in quantitative characteris-tics associated with the majority of agronomic traits of economic interest in these species had not been started. Therefore, 3 methodologies are being used for this pur-pose: reciprocal recurrent selection; intra-population recurrent selection; and directed crosses between sexual and apomictic plants. The last 2 strategies are already underway and the strategies for agronomic evaluations are reported here. 650 $aApomixis 650 $aInterspecific hybridization 650 $aTropical pastures 650 $aBrachiaria 650 $aProdutividade 700 1 $aFIGUEIREDO, U. J. de 700 1 $aPANDOLFI FILHO, A. D. 700 1 $aBARRIOS, S. C. L. 700 1 $aVALLE, C. B. do 773 $tTropical Grassland - Forrajes Tropicales$gv. 2, p. 1-3, 2014.
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Embrapa Gado de Corte (CNPGC) |
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