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| Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
03/05/2022 |
Data da última atualização: |
03/05/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
STRECK, E. A.; MAGALHAES JUNIOR, A. M. de; AGUIAR, G. A.; FACCHINELLO, P. K. H.; FAGUNDES, P. R. R.; FRANCO D. F.; NARDINO, N.; OLIVEIRA, A. C. de. |
Afiliação: |
EDUARDO ANIBELE STRECK; ARIANO MARTINS DE MAGALHAES JUNIOR, CPACT; GABRIEL ALMEIDA AGUIAR; PAULO KARLING HENRIQUE FACCHINELLO; PAULO RICARDO REIS FAGUNDES, CPACT; DANIEL FERNANDES FRANCO; MAICON NARDINO; ANTÔNIO COSTA DE OLIVEIRA. |
Título: |
Genetic Progress in 45 Years of Irrigated Rice Breeding in Southern Brazil. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
crop science, v. 58, p. 1094-1105, 2018 |
DOI: |
doi: 10.2135/cropsci2017.06.0383 |
Idioma: |
Português |
Conteúdo: |
ABSTRACT Irrigated rice (Oryza sativa L.) is a crop of extreme social and economic importance in Brazil, and the state of Rio Grande do Sul accounts for >70% of the national production. The Brazilian Agricultural Research Corporation (Embrapa) is focused on rice breeding, with the aim of developing cultivars with significantly increased grain yield and improved sustainability. The objective of this study was to estimate the genetic progress of 45 yr of the irrigated rice breeding program of Embrapa in Southern Brazil from 1972 to 2016 by conducting a comparative analysis of cultivars in the same environment and by meta-analysis of line yield assays. The estimates were results from a meta-analysis obtained by evaluating 455 genotypes in 145 trials of regional line yield and value for cultivation and use of 44 agricultural crop seasons, and by comparing cultivars obtained by evaluating 25 cultivars in 10 agricultural crop seasons. Genetic gains were evaluated for grain yield, plant height, and days to flowering. The cultivars released by the breeding program were also evaluated for important agronomic characters. The genetic estimates determined a genetic progress for grain yield via meta-analysis and via comparison of cultivars of 0.62 (37.91 kg yr−1) and 0.73% (47.78 kg yr−1), respectively. It was also verified that during the period there was a reduction in plant height and days to flowering. Three distinct historical phases that defined changes in research focus and in genetic gains can be described: (i) 1972 to 1983, before the rice Green Revolution; (ii) 1983 to 2000, after the rice Green Revolution; and (iii) 2000 to 2016, selection intensification for industrial grain quality attributes. Other relevant genetic aspects, selection strategies, and phases of the breeding program were discussed. MenosABSTRACT Irrigated rice (Oryza sativa L.) is a crop of extreme social and economic importance in Brazil, and the state of Rio Grande do Sul accounts for >70% of the national production. The Brazilian Agricultural Research Corporation (Embrapa) is focused on rice breeding, with the aim of developing cultivars with significantly increased grain yield and improved sustainability. The objective of this study was to estimate the genetic progress of 45 yr of the irrigated rice breeding program of Embrapa in Southern Brazil from 1972 to 2016 by conducting a comparative analysis of cultivars in the same environment and by meta-analysis of line yield assays. The estimates were results from a meta-analysis obtained by evaluating 455 genotypes in 145 trials of regional line yield and value for cultivation and use of 44 agricultural crop seasons, and by comparing cultivars obtained by evaluating 25 cultivars in 10 agricultural crop seasons. Genetic gains were evaluated for grain yield, plant height, and days to flowering. The cultivars released by the breeding program were also evaluated for important agronomic characters. The genetic estimates determined a genetic progress for grain yield via meta-analysis and via comparison of cultivars of 0.62 (37.91 kg yr−1) and 0.73% (47.78 kg yr−1), respectively. It was also verified that during the period there was a reduction in plant height and days to flowering. Three distinct historical phases that defined changes in research focu... Mostrar Tudo |
Palavras-Chave: |
Oryza sativa L. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02525naa a2200229 a 4500 001 2142595 005 2022-05-03 008 2018 bl uuuu u00u1 u #d 024 7 $adoi: 10.2135/cropsci2017.06.0383$2DOI 100 1 $aSTRECK, E. A. 245 $aGenetic Progress in 45 Years of Irrigated Rice Breeding in Southern Brazil.$h[electronic resource] 260 $c2018 520 $aABSTRACT Irrigated rice (Oryza sativa L.) is a crop of extreme social and economic importance in Brazil, and the state of Rio Grande do Sul accounts for >70% of the national production. The Brazilian Agricultural Research Corporation (Embrapa) is focused on rice breeding, with the aim of developing cultivars with significantly increased grain yield and improved sustainability. The objective of this study was to estimate the genetic progress of 45 yr of the irrigated rice breeding program of Embrapa in Southern Brazil from 1972 to 2016 by conducting a comparative analysis of cultivars in the same environment and by meta-analysis of line yield assays. The estimates were results from a meta-analysis obtained by evaluating 455 genotypes in 145 trials of regional line yield and value for cultivation and use of 44 agricultural crop seasons, and by comparing cultivars obtained by evaluating 25 cultivars in 10 agricultural crop seasons. Genetic gains were evaluated for grain yield, plant height, and days to flowering. The cultivars released by the breeding program were also evaluated for important agronomic characters. The genetic estimates determined a genetic progress for grain yield via meta-analysis and via comparison of cultivars of 0.62 (37.91 kg yr−1) and 0.73% (47.78 kg yr−1), respectively. It was also verified that during the period there was a reduction in plant height and days to flowering. Three distinct historical phases that defined changes in research focus and in genetic gains can be described: (i) 1972 to 1983, before the rice Green Revolution; (ii) 1983 to 2000, after the rice Green Revolution; and (iii) 2000 to 2016, selection intensification for industrial grain quality attributes. Other relevant genetic aspects, selection strategies, and phases of the breeding program were discussed. 653 $aOryza sativa L 700 1 $aMAGALHAES JUNIOR, A. M. de 700 1 $aAGUIAR, G. A. 700 1 $aFACCHINELLO, P. K. H. 700 1 $aFAGUNDES, P. R. R. 700 1 $aFRANCO D. F. 700 1 $aNARDINO, N. 700 1 $aOLIVEIRA, A. C. de 773 $tcrop science$gv. 58, p. 1094-1105, 2018
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
07/01/1991 |
Data da última atualização: |
15/02/2016 |
Autoria: |
AMARAL, A. dos S.; RIBEIRO, A. S.; GOMES, A. da S.; MENSCHOY, A. B.; TERRES, A. L. S.; DOMINGUEZ GONZALEZ, B.; ZONTA, E. P.; GASTAL, F. L. da C.; XAVIER, F. E.; CARRICONDE FILHO, J.; GONÇALO, J. F. P.; INFELD, J. A.; PARFITT, J. M.; MARTINS, J. F.; GALLI, J.; VAHL, L. C.; MACHADO, M. O.; SILVEIRA JUNIOR, P.; ANDRADE, V. A. de. |
Título: |
Fundamentos para a cultura do arroz irrigado. |
Ano de publicação: |
1985 |
Fonte/Imprenta: |
Campinas: Fundação Cargill; Pelotas: EMBRAPA-CPACT, 1985. |
Páginas: |
315 p. |
Descrição Física: |
il. color. |
Idioma: |
Português |
Conteúdo: |
Apresentação; Relação de autores; Origem; Histórico e caracterização da planta de arroz; Estruturação da lavoura; Cultivares; Efeitos do frio em cultivares de arroz irrigado no Rio Grande do Sul; Potencial de produção em função das épocas de semeadura; Sementes; Caracterização e adubação do solo; Controle de plantas daninhas; Doenças; Manejo de água em arroz irrigado; Insetos-pragas do arroz e seu combate; Época de colheita e rendimento de engenho em quatro cultivares de arroz irrigado. |
Palavras-Chave: |
Brasil; Control; Controle; Cultivar; Cultivares; Cultivation; Cultivo; Cultura; Cultural methods; Disease; Diseases; Doenças; Epoca; Harvest; Irrigado; Irrigated; Irrigated rice; Oriza sativa; Pelotas; Pest; Pests of plants; Plant diseases; Planta daninha; Pragas; Rio Grande do Sul; Sawing date; Seed; Sementes; Variety. |
Thesagro: |
Adubação; Arroz; Arroz Irrigado; Colheita; Doença; Doença de planta; Época de Colheita; Época de Semeadura; Erva Daninha; Lavoura; Oryza Sativa; Praga; Praga de planta; Prática cultural; Rendimento; Semeadura; Semente; Variedade. |
Thesaurus NAL: |
fertilizer application; irrigation; pests; rice; seeds; varieties; weeds; yields. |
Categoria do assunto: |
-- A Sistemas de Cultivo F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02905nam a2200997 a 4500 001 1738505 005 2016-02-15 008 1985 bl uuuu 00u1 u #d 100 1 $aAMARAL, A. dos S. 245 $aFundamentos para a cultura do arroz irrigado. 260 $aCampinas: Fundação Cargill; Pelotas: EMBRAPA-CPACT$c1985 300 $a315 p.$cil. color. 520 $aApresentação; Relação de autores; Origem; Histórico e caracterização da planta de arroz; Estruturação da lavoura; Cultivares; Efeitos do frio em cultivares de arroz irrigado no Rio Grande do Sul; Potencial de produção em função das épocas de semeadura; Sementes; Caracterização e adubação do solo; Controle de plantas daninhas; Doenças; Manejo de água em arroz irrigado; Insetos-pragas do arroz e seu combate; Época de colheita e rendimento de engenho em quatro cultivares de arroz irrigado. 650 $afertilizer application 650 $airrigation 650 $apests 650 $arice 650 $aseeds 650 $avarieties 650 $aweeds 650 $ayields 650 $aAdubação 650 $aArroz 650 $aArroz Irrigado 650 $aColheita 650 $aDoença 650 $aDoença de planta 650 $aÉpoca de Colheita 650 $aÉpoca de Semeadura 650 $aErva Daninha 650 $aLavoura 650 $aOryza Sativa 650 $aPraga 650 $aPraga de planta 650 $aPrática cultural 650 $aRendimento 650 $aSemeadura 650 $aSemente 650 $aVariedade 653 $aBrasil 653 $aControl 653 $aControle 653 $aCultivar 653 $aCultivares 653 $aCultivation 653 $aCultivo 653 $aCultura 653 $aCultural methods 653 $aDisease 653 $aDiseases 653 $aDoenças 653 $aEpoca 653 $aHarvest 653 $aIrrigado 653 $aIrrigated 653 $aIrrigated rice 653 $aOriza sativa 653 $aPelotas 653 $aPest 653 $aPests of plants 653 $aPlant diseases 653 $aPlanta daninha 653 $aPragas 653 $aRio Grande do Sul 653 $aSawing date 653 $aSeed 653 $aSementes 653 $aVariety 700 1 $aRIBEIRO, A. S. 700 1 $aGOMES, A. da S. 700 1 $aMENSCHOY, A. B. 700 1 $aTERRES, A. L. S. 700 1 $aDOMINGUEZ GONZALEZ, B. 700 1 $aZONTA, E. P. 700 1 $aGASTAL, F. L. da C. 700 1 $aXAVIER, F. E. 700 1 $aCARRICONDE FILHO, J. 700 1 $aGONÇALO, J. F. P. 700 1 $aINFELD, J. A. 700 1 $aPARFITT, J. M. 700 1 $aMARTINS, J. F. 700 1 $aGALLI, J. 700 1 $aVAHL, L. C. 700 1 $aMACHADO, M. O. 700 1 $aSILVEIRA JUNIOR, P. 700 1 $aANDRADE, V. A. de
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