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| Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
02/05/2018 |
Data da última atualização: |
18/01/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
RAMIREZ-VILLEGAS, J.; HEINEMANN, A. B.; CASTRO, A. P. de; BRESEGHELLO, F.; NAVARRO-RACINES, C.; LI, T.; REBOLLEDO, M. C.; CHALLINOR, A. J. |
Afiliação: |
JULIAN RAMIREZ-VILLEGAS, UNIVERSITY OF LEEDS, UK; ALEXANDRE BRYAN HEINEMANN, CNPAF; ADRIANO PEREIRA DE CASTRO, CNPAF; FLAVIO BRESEGHELLO, CNPAF; CARLOS NAVARRO-RACINES, CIAT; TAO LI, IRRI; MARIA C. REBOLLEDO, CIAT; ANDREW J. CHALLINOR, UNIVERSITY OF LEEDS, UK. |
Título: |
Breeding implications of drought stress under future climate for upland rice in Brazil. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Global Change Biology, v. 24, n. 5, p. 2035-2050, May 2018. |
DOI: |
10.1111/gcb.14071 |
Idioma: |
Inglês |
Conteúdo: |
Rice is the most important food crop in the developing world. For rice production systems to address the challenges of increasing demand and climate change, potential and on-farm yield increases must be increased. Breeding is one of the main strategies toward such aim. Here, we hypothesize that climatic and atmospheric changes for the upland rice growing period in central Brazil are likely to alter environment groupings and drought stress patterns by 2050, leading to changing breeding targets during the 21st century. As a result of changes in drought stress frequency and intensity, we found reductions in productivity in the range of 200-600 kg/ha (up to 20%) and reductions in yield stability throughout virtually the entire upland rice growing area (except for the southeast). In the face of these changes, our crop simulation analysis suggests that the current strategy of the breeding program, which aims at achieving wide adaptation, should be adjusted. Based on the results for current and future climates, a weighted selection strategy for the three environmental groups that characterize the region is suggested. For the highly favorable environment (HFE, 36%-41% growing area, depending on RCP), selection should be done under both stress-free and terminal stress conditions; for the favorable environment (FE, 27%-40%), selection should aim at testing under reproductive and terminal stress, and for the least favorable environment (LFE, 23%-27%), selection should be conducted for response to reproductive stress only and for the joint occurrence of reproductive and terminal stress. Even though there are differences in timing, it is noteworthy that stress levels are similar across environments, with 40%-60% of crop water demand unsatisfied. Efficient crop improvement targeted toward adaptive traits for drought tolerance will enhance upland rice crop system resilience under climate change. MenosRice is the most important food crop in the developing world. For rice production systems to address the challenges of increasing demand and climate change, potential and on-farm yield increases must be increased. Breeding is one of the main strategies toward such aim. Here, we hypothesize that climatic and atmospheric changes for the upland rice growing period in central Brazil are likely to alter environment groupings and drought stress patterns by 2050, leading to changing breeding targets during the 21st century. As a result of changes in drought stress frequency and intensity, we found reductions in productivity in the range of 200-600 kg/ha (up to 20%) and reductions in yield stability throughout virtually the entire upland rice growing area (except for the southeast). In the face of these changes, our crop simulation analysis suggests that the current strategy of the breeding program, which aims at achieving wide adaptation, should be adjusted. Based on the results for current and future climates, a weighted selection strategy for the three environmental groups that characterize the region is suggested. For the highly favorable environment (HFE, 36%-41% growing area, depending on RCP), selection should be done under both stress-free and terminal stress conditions; for the favorable environment (FE, 27%-40%), selection should aim at testing under reproductive and terminal stress, and for the least favorable environment (LFE, 23%-27%), selection should be conducted for ... Mostrar Tudo |
Thesagro: |
Arroz; Melhoramento Genético Vegetal; Modelo de Simulação; Oryza Sativa; Resistência a Seca. |
Thesaurus Nal: |
Breeding; Climate; Environment; Plant adaptation; Rice; Simulation models. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02889naa a2200349 a 4500 001 2091090 005 2022-01-18 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1111/gcb.14071$2DOI 100 1 $aRAMIREZ-VILLEGAS, J. 245 $aBreeding implications of drought stress under future climate for upland rice in Brazil. 260 $c2018 520 $aRice is the most important food crop in the developing world. For rice production systems to address the challenges of increasing demand and climate change, potential and on-farm yield increases must be increased. Breeding is one of the main strategies toward such aim. Here, we hypothesize that climatic and atmospheric changes for the upland rice growing period in central Brazil are likely to alter environment groupings and drought stress patterns by 2050, leading to changing breeding targets during the 21st century. As a result of changes in drought stress frequency and intensity, we found reductions in productivity in the range of 200-600 kg/ha (up to 20%) and reductions in yield stability throughout virtually the entire upland rice growing area (except for the southeast). In the face of these changes, our crop simulation analysis suggests that the current strategy of the breeding program, which aims at achieving wide adaptation, should be adjusted. Based on the results for current and future climates, a weighted selection strategy for the three environmental groups that characterize the region is suggested. For the highly favorable environment (HFE, 36%-41% growing area, depending on RCP), selection should be done under both stress-free and terminal stress conditions; for the favorable environment (FE, 27%-40%), selection should aim at testing under reproductive and terminal stress, and for the least favorable environment (LFE, 23%-27%), selection should be conducted for response to reproductive stress only and for the joint occurrence of reproductive and terminal stress. Even though there are differences in timing, it is noteworthy that stress levels are similar across environments, with 40%-60% of crop water demand unsatisfied. Efficient crop improvement targeted toward adaptive traits for drought tolerance will enhance upland rice crop system resilience under climate change. 650 $aBreeding 650 $aClimate 650 $aEnvironment 650 $aPlant adaptation 650 $aRice 650 $aSimulation models 650 $aArroz 650 $aMelhoramento Genético Vegetal 650 $aModelo de Simulação 650 $aOryza Sativa 650 $aResistência a Seca 700 1 $aHEINEMANN, A. B. 700 1 $aCASTRO, A. P. de 700 1 $aBRESEGHELLO, F. 700 1 $aNAVARRO-RACINES, C. 700 1 $aLI, T. 700 1 $aREBOLLEDO, M. C. 700 1 $aCHALLINOR, A. J. 773 $tGlobal Change Biology$gv. 24, n. 5, p. 2035-2050, May 2018.
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Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
16/12/2021 |
Data da última atualização: |
13/03/2023 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
PONTES, D. S.; ROSADO, R. D. S.; SILVA JÚNIOR, A. C. da; CRUZ, C. D.; FERREIRA, R. de P.; VILELA, D. |
Afiliação: |
DAIANA SALLES PONTES, Universidade Federal de Viçosa; RENATO DOMICIANO SILVA ROSADO, Universidade Federal de Viçosa; ANTÔNIO CARLOS DA SILVA JÚNIOR, Universidade Federal de Viçosa; COSME DAMIÃO CRUZ, Universidade Federal de Viçosa; REINALDO DE PAULA FERREIRA, CPPSE; DUARTE VILELA, CNPGL. |
Título: |
Ficha de análise multi-informação para recomendar cultivares de alfafa. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
In: SIMPÓSIO DE FITOTECNIA, 2020. Inovação e sustentabilidade na agricultura: anais... Viçosa, MG: Universidade Federal de Viçosa, 2020. |
Páginas: |
p. 90. |
Idioma: |
Português |
Palavras-Chave: |
Adaptabilidade; Estabilidade; Interação genótipo x ambiente. |
Thesagro: |
Alfafa; Biometria; Medicago Sativa; Melhoramento Vegetal. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 00836nam a2200253 a 4500 001 2137960 005 2023-03-13 008 2020 bl uuuu u01u1 u #d 100 1 $aPONTES, D. S. 245 $aFicha de análise multi-informação para recomendar cultivares de alfafa.$h[electronic resource] 260 $aIn: SIMPÓSIO DE FITOTECNIA, 2020. Inovação e sustentabilidade na agricultura: anais... Viçosa, MG: Universidade Federal de Viçosa$c2020 300 $ap. 90. 650 $aAlfafa 650 $aBiometria 650 $aMedicago Sativa 650 $aMelhoramento Vegetal 653 $aAdaptabilidade 653 $aEstabilidade 653 $aInteração genótipo x ambiente 700 1 $aROSADO, R. D. S. 700 1 $aSILVA JÚNIOR, A. C. da 700 1 $aCRUZ, C. D. 700 1 $aFERREIRA, R. de P. 700 1 $aVILELA, D.
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