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| 2. |  | ZAMBROSI, F. C. B.; MATTOS JUNIOR, D.; FURLANI, P. R.; QUAGGIO, J. A.; BOARETTO, R. M. Eficiência de absorção e utilização de fósforo em porta-enxertos cítricos. Revista Brasileira de Ciencia do Solo, Viçosa, MG, v. 36, n. 2, p. 485-496, 2012.| Biblioteca(s): Embrapa Semiárido. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
05/09/2022 |
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Data da última atualização: |
05/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
RAKOCEVIC, M.; MARCHIORI, P. E. R.; ZAMBROSI, F. C. B.; MACHADO, E. C.; MAIA, A. de H. N.; RIBEIRO, R. V. |
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Afiliação: |
MIROSLAVA RAKOCEVIC; PAULO EDUARDO RIBEIRO MARCHIORI, UNIVERSIDADE FEDERAL DE LAVRAS; FERNANDO CESAR BACHIEGA ZAMBROSI, INSTITUTO AGRONÔMICO DE CAMPINAS; EDUARDO CARUSO MACHADO, INSTITUTO AGRONÔMICO DE CAMPINAS; ALINE DE HOLANDA NUNES MAIA, CNPMA; RAFAEL VASCONCELOS RIBEIRO, UNIVERSIDADE ESTAUDAL DE CAMPINAS. |
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Título: |
High phosphorus supply enhances leaf gas exchange and growth of young Arabica coffee plants under water deficit. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Experimental Agriculture, v. 58, e30, 2022. |
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ISSN: |
0014-4797 |
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DOI: |
https://doi.org/10.1017/S0014479722000266 |
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Idioma: |
Inglês |
|
Conteúdo: |
Abstract: Drought is considered as the major environmental stress affecting coffee production, and high phosphorus (P) supply may alleviate the drought effects on crop metabolism. Here, we hypothesized that high P supply would mitigate the impacts of drought on Arabica coffee physiology, morphology, and biomass accumulation. Potted Arabica coffee plants were grown under two P levels: the recommended P fertilization (P), and twice the recommended fertilization (+P), and two water regimes: well-watered and water withholding for 32 days. Leaf, stem, and root P concentrations were increased under +P, with plants showing higher photosynthesis and growth than the ones receiving the recommended P dose. Higher plant growth under high P supply seems to upregulate leaf photosynthesis through the source?sink relationship. Under the water deficit, the reduction of leaf photosynthesis, stomatal conductance, transpiration, water use efficiency, carboxylation efficiency, chlorophyll content, number of plagiotropic branches, plant leaf area, and vegetative biomass production was similar comparing plants fertilized with the recommended P to those supplied with +P. However, Arabica coffee trees under high P supply and water deficit presented morphological and physiological traits similar to plants under well-watered and recommended P fertilization. |
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Thesagro: |
Biomassa; Café; Deficiência Hídrica; Fósforo; Fotossíntese; Resistência a Seca. |
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Thesaurus NAL: |
Chlorophyll; Drought tolerance; Phosphorus fertilizers; Plant physiology; Starch; Sucrose; Water use efficiency. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02404naa a2200361 a 4500
001 2146134
005 2022-09-05
008 2022 bl uuuu u00u1 u #d
022 $a0014-4797
024 7 $ahttps://doi.org/10.1017/S0014479722000266$2DOI
100 1 $aRAKOCEVIC, M.
245 $aHigh phosphorus supply enhances leaf gas exchange and growth of young Arabica coffee plants under water deficit.$h[electronic resource]
260 $c2022
520 $aAbstract: Drought is considered as the major environmental stress affecting coffee production, and high phosphorus (P) supply may alleviate the drought effects on crop metabolism. Here, we hypothesized that high P supply would mitigate the impacts of drought on Arabica coffee physiology, morphology, and biomass accumulation. Potted Arabica coffee plants were grown under two P levels: the recommended P fertilization (P), and twice the recommended fertilization (+P), and two water regimes: well-watered and water withholding for 32 days. Leaf, stem, and root P concentrations were increased under +P, with plants showing higher photosynthesis and growth than the ones receiving the recommended P dose. Higher plant growth under high P supply seems to upregulate leaf photosynthesis through the source?sink relationship. Under the water deficit, the reduction of leaf photosynthesis, stomatal conductance, transpiration, water use efficiency, carboxylation efficiency, chlorophyll content, number of plagiotropic branches, plant leaf area, and vegetative biomass production was similar comparing plants fertilized with the recommended P to those supplied with +P. However, Arabica coffee trees under high P supply and water deficit presented morphological and physiological traits similar to plants under well-watered and recommended P fertilization.
650 $aChlorophyll
650 $aDrought tolerance
650 $aPhosphorus fertilizers
650 $aPlant physiology
650 $aStarch
650 $aSucrose
650 $aWater use efficiency
650 $aBiomassa
650 $aCafé
650 $aDeficiência Hídrica
650 $aFósforo
650 $aFotossíntese
650 $aResistência a Seca
700 1 $aMARCHIORI, P. E. R.
700 1 $aZAMBROSI, F. C. B.
700 1 $aMACHADO, E. C.
700 1 $aMAIA, A. de H. N.
700 1 $aRIBEIRO, R. V.
773 $tExperimental Agriculture$gv. 58, e30, 2022.
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