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Biblioteca(s): |
Embrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Cerrados; Embrapa Clima Temperado; Embrapa Meio-Norte; Embrapa Milho e Sorgo; Embrapa Pantanal; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Rondônia; Embrapa Roraima; Embrapa Semiárido; Embrapa Tabuleiros Costeiros; Embrapa Unidades Centrais. MenosEmbrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Cerrados; Embrapa Clima Temperado; Embrapa Meio-Norte; Embrapa Milho e Sorgo; Embrapa Pantanal; Embrapa Recursos Genéticos e Biotecnologia... Mostrar Todas |
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Data corrente: |
05/03/2001 |
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Data da última atualização: |
04/07/2005 |
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Autoria: |
MIRANDA FILHO, J. B. de; NASS, L. L.; SANTOS, M. X. dos; REGITANO NETO, A. |
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Título: |
Avaliacao dos acessos de milho para resistencia a doencas foliares. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Brasilia: Embrapa Recursos Geneticos e Biotecnologia, 2000. |
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Páginas: |
147p. |
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Série: |
(Embrapa Recursos Geneticos e Biotecnologia. Circular Tecnica, 3). |
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Idioma: |
Português |
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Conteúdo: |
A cultura do milho e amplamente difundida no Brasil. O inicio da decada de 90 foi marcado pelo incremento da ocorrencia de doencas foliares na cultura do milho. As doencas avaliadas nesse projeto foram mancha por Exserohilum turcicum, ferrugem polysora, ferrugem tropical, mancha por Phaeosphaeria e complexo do enfezamento e viroses. O presente trabalho apresenta a caracterizacao da reacao de resistencia as principais doencas foliares dos acessos de milho disponiveis no Banco Ativo de Germoplasma de Milho (BAG-Milho), sendo tambem indicados os acessos mais promissores para futuros trabalhos de melhoramento genetico. |
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Palavras-Chave: |
Accession; Acesso; Avaliacao; Avaliação de acessos; Brasil; Brasilia; Disease; Diseases; Doença foliar; Doenças foliares; Evaluation; Foliar; Fungal diseases; Maize; Melhoramento genetico; Milho - Doença Foliar; Plant disease; Plant diseases; Reistance; Resistance; Resistencia a doenca. |
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Thesagro: |
Banco de Germoplasma; Doença; Doença de Planta; Ferrugem; Folha; Fungo; Germoplasma; Melhoramento Genético Vegetal; Milho; Resistência; Variedade Resistente; Zea Mays. |
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Thesaurus Nal: |
disease resistance; gene banks; germplasm; leaves; plant breeding; plant establishment. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal
G Melhoramento Genético |
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Marc: |
LEADER 02299nam a2200637 a 4500
001 1179949
005 2005-07-04
008 2000 bl uuuu 00u1 u #d
100 1 $aMIRANDA FILHO, J. B. de
245 $aAvaliacao dos acessos de milho para resistencia a doencas foliares.
260 $aBrasilia: Embrapa Recursos Geneticos e Biotecnologia$c2000
300 $a147p.
490 $a(Embrapa Recursos Geneticos e Biotecnologia. Circular Tecnica, 3).
520 $aA cultura do milho e amplamente difundida no Brasil. O inicio da decada de 90 foi marcado pelo incremento da ocorrencia de doencas foliares na cultura do milho. As doencas avaliadas nesse projeto foram mancha por Exserohilum turcicum, ferrugem polysora, ferrugem tropical, mancha por Phaeosphaeria e complexo do enfezamento e viroses. O presente trabalho apresenta a caracterizacao da reacao de resistencia as principais doencas foliares dos acessos de milho disponiveis no Banco Ativo de Germoplasma de Milho (BAG-Milho), sendo tambem indicados os acessos mais promissores para futuros trabalhos de melhoramento genetico.
650 $adisease resistance
650 $agene banks
650 $agermplasm
650 $aleaves
650 $aplant breeding
650 $aplant establishment
650 $aBanco de Germoplasma
650 $aDoença
650 $aDoença de Planta
650 $aFerrugem
650 $aFolha
650 $aFungo
650 $aGermoplasma
650 $aMelhoramento Genético Vegetal
650 $aMilho
650 $aResistência
650 $aVariedade Resistente
650 $aZea Mays
653 $aAccession
653 $aAcesso
653 $aAvaliacao
653 $aAvaliação de acessos
653 $aBrasil
653 $aBrasilia
653 $aDisease
653 $aDiseases
653 $aDoença foliar
653 $aDoenças foliares
653 $aEvaluation
653 $aFoliar
653 $aFungal diseases
653 $aMaize
653 $aMelhoramento genetico
653 $aMilho - Doença Foliar
653 $aPlant disease
653 $aPlant diseases
653 $aReistance
653 $aResistance
653 $aResistencia a doenca
700 1 $aNASS, L. L.
700 1 $aSANTOS, M. X. dos
700 1 $aREGITANO NETO, A.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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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: |
11/01/2018 |
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Data da última atualização: |
05/02/2019 |
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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: |
REIS, A. F. de B.; ALMEIDA, R. E. M. de; LAGO, B. C.; TRIVELIN, P. C.; LINQUIST, B.; FAVARIN, J. L. |
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Afiliação: |
ANDRE FROES DE BORJA REIS, ESALQ; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; BRUNO COCCO LAGO, ESALQ; PAULO CESAR TRIVELIN, CENA; BRUCE LINQUIST, UNIVERSITY CALIFORNIA, Davis-CA; JOSE LAERCIO FAVARIN, ESALQ. |
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Título: |
Aerobic rice system improves water productivity, nitrogen recovery and crop performance in Brazilian weathered lowland soil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Field Crops Research, v. 218, p. 59-68, 2018. |
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ISSN: |
0378-4290 |
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DOI: |
10.1016/j.fcr.2018.01.002 |
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Idioma: |
Inglês |
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Conteúdo: |
Worldwide, rice systems are faced with the challenge of producing higher yields with less water. Water savings practices such as aerobic system and alternate wetting and drying (AWD) are being evaluated in lowland rice systems. However, few studies have been conducted on this subject in tropical South America where soils are highly weathered. Thus, a three-year field experiment was conducted in Brazil on a lowland Plinthaquults to investigate crop performance, water input productivity (WPin) and N recovery under five irrigation regimes: continuous flooding (CF); AWD with short cycle (AWDS); AWD with long cycle (AWDL); saturated soil without ponded water (SS); and aerobic (AR). The drying events in AWDS occurred more frequently than in AWDL. The experimental design was a split-plot with irrigation regimes in the main plot and N fertilizer rate, 0 or 150 kg N ha-1, in the subplot. 15N micro-plots were set up to examine the fate of N fertilizer. The highest grain yields for 150N and 0N treatments resulted from the AR irrigation regime and averaged 9.1 and 6.5 mg ha-1, respectively. Yields among the others irrigations regimes varied from year to the next, but the average was 8.5 and 5.4 mg ha-1 in the 150N and 0N treatments, respectively. Higher yields are attributed to higher N uptake and greater N recovery in the AR treatment. Apparent N recovery averaged 58% in the AR treatment compared to 34% in the other treatments. Similarly, total recovery (plant and soil) of 15N in the AR treatment was 82%, compared to 62, 61, 56, 56% in SS, AWDS, AWDL, CF respectively. Higher N recovery in the AR was likely the result of lower N losses. Irrigation inputs ranged from 15mm in the AR to 1337mm in the CF treatment. The WPin (kg m-3) averaged 0.8 in AR, and 0.5, 0.4, 0.5 and 0.4 in SS, CF, AWDS, AWDL and CF. Thus, in this environment, rice productivity, water productivity, and N use efficiency were all enhanced in aerobic systems relative to continuous flooding or any alternative irrigation regime. MenosWorldwide, rice systems are faced with the challenge of producing higher yields with less water. Water savings practices such as aerobic system and alternate wetting and drying (AWD) are being evaluated in lowland rice systems. However, few studies have been conducted on this subject in tropical South America where soils are highly weathered. Thus, a three-year field experiment was conducted in Brazil on a lowland Plinthaquults to investigate crop performance, water input productivity (WPin) and N recovery under five irrigation regimes: continuous flooding (CF); AWD with short cycle (AWDS); AWD with long cycle (AWDL); saturated soil without ponded water (SS); and aerobic (AR). The drying events in AWDS occurred more frequently than in AWDL. The experimental design was a split-plot with irrigation regimes in the main plot and N fertilizer rate, 0 or 150 kg N ha-1, in the subplot. 15N micro-plots were set up to examine the fate of N fertilizer. The highest grain yields for 150N and 0N treatments resulted from the AR irrigation regime and averaged 9.1 and 6.5 mg ha-1, respectively. Yields among the others irrigations regimes varied from year to the next, but the average was 8.5 and 5.4 mg ha-1 in the 150N and 0N treatments, respectively. Higher yields are attributed to higher N uptake and greater N recovery in the AR treatment. Apparent N recovery averaged 58% in the AR treatment compared to 34% in the other treatments. Similarly, total recovery (plant and soil) of 15N in the A... Mostrar Tudo |
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Palavras-Chave: |
Isotopic recovery; Water saving. |
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Thesagro: |
Arroz; Oryza sativa. |
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Thesaurus NAL: |
Nutrient use efficiency; Rice; Ultisols. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02866naa a2200289 a 4500
001 2085049
005 2019-02-05
008 2018 bl uuuu u00u1 u #d
022 $a0378-4290
024 7 $a10.1016/j.fcr.2018.01.002$2DOI
100 1 $aREIS, A. F. de B.
245 $aAerobic rice system improves water productivity, nitrogen recovery and crop performance in Brazilian weathered lowland soil.$h[electronic resource]
260 $c2018
520 $aWorldwide, rice systems are faced with the challenge of producing higher yields with less water. Water savings practices such as aerobic system and alternate wetting and drying (AWD) are being evaluated in lowland rice systems. However, few studies have been conducted on this subject in tropical South America where soils are highly weathered. Thus, a three-year field experiment was conducted in Brazil on a lowland Plinthaquults to investigate crop performance, water input productivity (WPin) and N recovery under five irrigation regimes: continuous flooding (CF); AWD with short cycle (AWDS); AWD with long cycle (AWDL); saturated soil without ponded water (SS); and aerobic (AR). The drying events in AWDS occurred more frequently than in AWDL. The experimental design was a split-plot with irrigation regimes in the main plot and N fertilizer rate, 0 or 150 kg N ha-1, in the subplot. 15N micro-plots were set up to examine the fate of N fertilizer. The highest grain yields for 150N and 0N treatments resulted from the AR irrigation regime and averaged 9.1 and 6.5 mg ha-1, respectively. Yields among the others irrigations regimes varied from year to the next, but the average was 8.5 and 5.4 mg ha-1 in the 150N and 0N treatments, respectively. Higher yields are attributed to higher N uptake and greater N recovery in the AR treatment. Apparent N recovery averaged 58% in the AR treatment compared to 34% in the other treatments. Similarly, total recovery (plant and soil) of 15N in the AR treatment was 82%, compared to 62, 61, 56, 56% in SS, AWDS, AWDL, CF respectively. Higher N recovery in the AR was likely the result of lower N losses. Irrigation inputs ranged from 15mm in the AR to 1337mm in the CF treatment. The WPin (kg m-3) averaged 0.8 in AR, and 0.5, 0.4, 0.5 and 0.4 in SS, CF, AWDS, AWDL and CF. Thus, in this environment, rice productivity, water productivity, and N use efficiency were all enhanced in aerobic systems relative to continuous flooding or any alternative irrigation regime.
650 $aNutrient use efficiency
650 $aRice
650 $aUltisols
650 $aArroz
650 $aOryza sativa
653 $aIsotopic recovery
653 $aWater saving
700 1 $aALMEIDA, R. E. M. de
700 1 $aLAGO, B. C.
700 1 $aTRIVELIN, P. C.
700 1 $aLINQUIST, B.
700 1 $aFAVARIN, J. L.
773 $tField Crops Research$gv. 218, p. 59-68, 2018.
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Embrapa Pesca e Aquicultura (CNPASA) |
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