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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
07/12/2023 |
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Data da última atualização: |
07/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
SOUSA, A. R. de O.; COELHO FILHO, M. A.; SILVA, A. R. da; SANTOS, L. M. dos; SILVA, M. de C.; CRUZ, E. S. da; LEDO, C. A. da S.; SOARES FILHO, W. dos S.; COSTA, M. G. C.; MICHELIA, F.; GESTEIRA, A. da S. |
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Afiliação: |
ANDRESSA RODRIGUES DE OLIVEIRA SOUSA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; MAURICIO ANTONIO COELHO FILHO, CNPMF; ADIELLE RODRIGUES DA SILVA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; LIZIANE MARQUES DOS SANTOS, UNIVERSIDADE FEDERAL DO RECÔNCAVO DA BAHIA; MATHEUS DE CARVALHO SILVA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; ELAINE SILVA DA CRUZ, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; CARLOS ALBERTO DA SILVA LEDO, CNPMF; WALTER DOS SANTOS SOARES FILHO, CNPMF; MARCIO GILBERTO CARDOSO COSTA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; FABIENNE MICHELIA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; ABELMON DA SILVA GESTEIRA, CNPMF. |
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Título: |
Water competition in the soil by rootstocks is used to assess drought tolerance in citrus. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
South African Journal of Botany, v. 164, p. 23-30, 2024. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Brazil is a country focused on agribusiness and is the world's largest producer of orange juice. However, citrus production in certain regions of the world is affected by irregular rainfall, which imposes drought stress conditions and causes behavioral changes in plant survival, growth, and productivity. In this context, the objective of this work was to assess a methodology for the selection of citrus rootstocks tolerant to drought when exposed to water deficit regimes. This work was conceived with prior knowledge of the responses to drought tolerance of three rootstocks: Rangpur Lime (RL), Sunki Tropical (ST) and Sunki Maravilha (SM). The study was carried out with Valencia Orange (VO) scion varieties grafted on these three rootstocks. Two plants were conditioned per pot, forcing competition for available water in the soil, and all combinations were exposed to three different water regimes (irrigated, water deficit, and rehydrated). The hydric and physiological relationships were then evaluated. The results showed that in addition to the availability of water, the association between genotypes in the same pot caused different physiological responses. In view of the contrasting strategies of survival/tolerance adopted by these genotypes in response to water deficit, the combination with RL allowed a higher tolerance, showing less water extraction, lower leaf water potential, and relative water content, as well as an increase in the photosynthetic parameters when combined mainly with SM. The methodology used is a promising and more effective tool for analyses of citrus plants under drought stress conditions. MenosAbstract: Brazil is a country focused on agribusiness and is the world's largest producer of orange juice. However, citrus production in certain regions of the world is affected by irregular rainfall, which imposes drought stress conditions and causes behavioral changes in plant survival, growth, and productivity. In this context, the objective of this work was to assess a methodology for the selection of citrus rootstocks tolerant to drought when exposed to water deficit regimes. This work was conceived with prior knowledge of the responses to drought tolerance of three rootstocks: Rangpur Lime (RL), Sunki Tropical (ST) and Sunki Maravilha (SM). The study was carried out with Valencia Orange (VO) scion varieties grafted on these three rootstocks. Two plants were conditioned per pot, forcing competition for available water in the soil, and all combinations were exposed to three different water regimes (irrigated, water deficit, and rehydrated). The hydric and physiological relationships were then evaluated. The results showed that in addition to the availability of water, the association between genotypes in the same pot caused different physiological responses. In view of the contrasting strategies of survival/tolerance adopted by these genotypes in response to water deficit, the combination with RL allowed a higher tolerance, showing less water extraction, lower leaf water potential, and relative water content, as well as an increase in the photosynthetic parameters when c... Mostrar Tudo |
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Thesagro: |
Seca. |
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Thesaurus NAL: |
Citrus; Drought tolerance; Rootstocks. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02483naa a2200289 a 4500
001 2159259
005 2023-12-07
008 2024 bl uuuu u00u1 u #d
100 1 $aSOUSA, A. R. de O.
245 $aWater competition in the soil by rootstocks is used to assess drought tolerance in citrus.$h[electronic resource]
260 $c2024
520 $aAbstract: Brazil is a country focused on agribusiness and is the world's largest producer of orange juice. However, citrus production in certain regions of the world is affected by irregular rainfall, which imposes drought stress conditions and causes behavioral changes in plant survival, growth, and productivity. In this context, the objective of this work was to assess a methodology for the selection of citrus rootstocks tolerant to drought when exposed to water deficit regimes. This work was conceived with prior knowledge of the responses to drought tolerance of three rootstocks: Rangpur Lime (RL), Sunki Tropical (ST) and Sunki Maravilha (SM). The study was carried out with Valencia Orange (VO) scion varieties grafted on these three rootstocks. Two plants were conditioned per pot, forcing competition for available water in the soil, and all combinations were exposed to three different water regimes (irrigated, water deficit, and rehydrated). The hydric and physiological relationships were then evaluated. The results showed that in addition to the availability of water, the association between genotypes in the same pot caused different physiological responses. In view of the contrasting strategies of survival/tolerance adopted by these genotypes in response to water deficit, the combination with RL allowed a higher tolerance, showing less water extraction, lower leaf water potential, and relative water content, as well as an increase in the photosynthetic parameters when combined mainly with SM. The methodology used is a promising and more effective tool for analyses of citrus plants under drought stress conditions.
650 $aCitrus
650 $aDrought tolerance
650 $aRootstocks
650 $aSeca
700 1 $aCOELHO FILHO, M. A.
700 1 $aSILVA, A. R. da
700 1 $aSANTOS, L. M. dos
700 1 $aSILVA, M. de C.
700 1 $aCRUZ, E. S. da
700 1 $aLEDO, C. A. da S.
700 1 $aSOARES FILHO, W. dos S.
700 1 $aCOSTA, M. G. C.
700 1 $aMICHELIA, F.
700 1 $aGESTEIRA, A. da S.
773 $tSouth African Journal of Botany$gv. 164, p. 23-30, 2024.
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