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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
20/06/2017 |
Data da última atualização: |
28/09/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SANTOS, P. N. dos.; SILVA, D. M.; GALLON, C. Z.; VENTURA, J. A. |
Afiliação: |
Priscila Nobres do Santos, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO; Diolina Moura Silva, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO; Camilla Zanotti Gallon, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO; Jose Aires Ventura, Incaper. |
Título: |
Sensitivity to environmental stress of prata, Japira and Vitória banana cultivars proven by chlorophyll a fluorescence. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Revista Brasileira de Fruticultura, Jaboticabal, v. 39, n. 2, e-911, 2017. |
DOI: |
http://dx.doi.org/10.1590/0100-29452017991 |
Idioma: |
Inglês |
Conteúdo: |
This study aimed to evaluate the physiological responses to environmental stress during pre- and post-harvest of the following banana cultivars: Prata (AAB), Japira (AAAB) and Vitoria (AAAB). Analyses were carried out on young plants at vegetative stage (daughter-plant) and adult plants at reproductive stage (motherplant). The experimental design was completely randomized. In the in vivo pre-harvest analysis were used seven replications, in a factorial scheme (3x2x2), three cultivars and two stages (vegetative and reproductive) and two collection periods (March and June). For the analysis of post-harvest quality were used five replications in a factorial design (3x2x5), corresponding to three cultivars, two development stages and five periods of post-harvest analysis,
carried out every two days from stage 4 of fruit ripening. The chlorophyll a fluorescence emission kinetics showed low photochemical performance of the three cultivars in June, a period characterized by lower temperatures and water deficit. Prata was the cultivar with the lowest tolerance to abiotic physiological behavior changes, which also reflected in fruit quality, because there was a change in physical and physicochemical parameters. Japira and Vitoria cultivars showed similar physiological responses in the pre- and post-harvest periods, according to their phylogenetic proximity. The total performance index, i.e., the conservation of energy absorbed by PSII up to the reduction of the final PSI acceptors (PItotal) and the di-malonic aldehyde (MDA) content were significantly higher in Japira and Vitoria cultivars compared to Prata cultivar in the reproductive phase. There was no significant
change in the potential quantum efficiency of PSII (FV / FM = jP0) among the three cultivars. It was concluded that Japira and Vitoria cultivars showed greater plasticity to tolerate or even adapt to abiotic variations keeping higher fruit yield. PItotal is the most sensitive parameter during the banana life cycle and important tool for distinguishing different cultivars yields. MenosThis study aimed to evaluate the physiological responses to environmental stress during pre- and post-harvest of the following banana cultivars: Prata (AAB), Japira (AAAB) and Vitoria (AAAB). Analyses were carried out on young plants at vegetative stage (daughter-plant) and adult plants at reproductive stage (motherplant). The experimental design was completely randomized. In the in vivo pre-harvest analysis were used seven replications, in a factorial scheme (3x2x2), three cultivars and two stages (vegetative and reproductive) and two collection periods (March and June). For the analysis of post-harvest quality were used five replications in a factorial design (3x2x5), corresponding to three cultivars, two development stages and five periods of post-harvest analysis,
carried out every two days from stage 4 of fruit ripening. The chlorophyll a fluorescence emission kinetics showed low photochemical performance of the three cultivars in June, a period characterized by lower temperatures and water deficit. Prata was the cultivar with the lowest tolerance to abiotic physiological behavior changes, which also reflected in fruit quality, because there was a change in physical and physicochemical parameters. Japira and Vitoria cultivars showed similar physiological responses in the pre- and post-harvest periods, according to their phylogenetic proximity. The total performance index, i.e., the conservation of energy absorbed by PSII up to the reduction of the final PSI acceptors (P... Mostrar Tudo |
Palavras-Chave: |
Fluorescência da clorofila; Musa spp; Peroxidação lipídica; Pigmentos; Qualidade pós-colheita. |
Thesaurus NAL: |
Chlorophyll fluorescence; Lipid peroxidation; Musa spp; Pigments; Post-harvest quality. |
Categoria do assunto: |
-- |
URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/2712/1/BRT-Sensitivity-to-environmental-Aires-Ventura.pdf
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Marc: |
LEADER 03005naa a2200289 a 4500 001 1015411 005 2017-09-28 008 2017 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1590/0100-29452017991$2DOI 100 1 $aSANTOS, P. N. dos. 245 $aSensitivity to environmental stress of prata, Japira and Vitória banana cultivars proven by chlorophyll a fluorescence.$h[electronic resource] 260 $c2017 520 $aThis study aimed to evaluate the physiological responses to environmental stress during pre- and post-harvest of the following banana cultivars: Prata (AAB), Japira (AAAB) and Vitoria (AAAB). Analyses were carried out on young plants at vegetative stage (daughter-plant) and adult plants at reproductive stage (motherplant). The experimental design was completely randomized. In the in vivo pre-harvest analysis were used seven replications, in a factorial scheme (3x2x2), three cultivars and two stages (vegetative and reproductive) and two collection periods (March and June). For the analysis of post-harvest quality were used five replications in a factorial design (3x2x5), corresponding to three cultivars, two development stages and five periods of post-harvest analysis, carried out every two days from stage 4 of fruit ripening. The chlorophyll a fluorescence emission kinetics showed low photochemical performance of the three cultivars in June, a period characterized by lower temperatures and water deficit. Prata was the cultivar with the lowest tolerance to abiotic physiological behavior changes, which also reflected in fruit quality, because there was a change in physical and physicochemical parameters. Japira and Vitoria cultivars showed similar physiological responses in the pre- and post-harvest periods, according to their phylogenetic proximity. The total performance index, i.e., the conservation of energy absorbed by PSII up to the reduction of the final PSI acceptors (PItotal) and the di-malonic aldehyde (MDA) content were significantly higher in Japira and Vitoria cultivars compared to Prata cultivar in the reproductive phase. There was no significant change in the potential quantum efficiency of PSII (FV / FM = jP0) among the three cultivars. It was concluded that Japira and Vitoria cultivars showed greater plasticity to tolerate or even adapt to abiotic variations keeping higher fruit yield. PItotal is the most sensitive parameter during the banana life cycle and important tool for distinguishing different cultivars yields. 650 $aChlorophyll fluorescence 650 $aLipid peroxidation 650 $aMusa spp 650 $aPigments 650 $aPost-harvest quality 653 $aFluorescência da clorofila 653 $aMusa spp 653 $aPeroxidação lipídica 653 $aPigmentos 653 $aQualidade pós-colheita 700 1 $aSILVA, D. M. 700 1 $aGALLON, C. Z. 700 1 $aVENTURA, J. A. 773 $tRevista Brasileira de Fruticultura, Jaboticabal$gv. 39, n. 2, e-911, 2017.
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Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
29/09/2022 |
Data da última atualização: |
04/10/2022 |
Autoria: |
INCAPER. |
Título: |
Crise hídrica e seu impacto no agronegócio no Espírito Santo. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Vitória : Incaper, [2015?]. |
Páginas: |
20 p. |
Descrição Física: |
Il. |
Idioma: |
Português |
Conteúdo: |
O modelo atual e desenvolvimento humano, associado ao crescimento populacional, estabelece um aumento contínuo da produção de alimentos, com dependência efetiva da disponibilidade de recursos hídricos. Dessa forma, o setor agropecuário, um dos mais expostos às variações das condições climáticas, necessita definir ações estratégicas de gestão racional e eficiente dos recursos naturais, dentre eles os recursos hídricos, para assegurar a produção sustentável de alimentos... |
Palavras-Chave: |
Prevenção. |
Thesagro: |
Emergência; Impacto Ambiental; Impacto Econômico; Perda da Produção; Previsão do Tempo; Produção Agrícola; Recurso Hídrico. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01085nam a2200217 a 4500 001 1024391 005 2022-10-04 008 2015 bl uuuu u0uu1 u #d 100 1 $aINCAPER. 245 $aCrise hídrica e seu impacto no agronegócio no Espírito Santo. 260 $aVitória : Incaper, [2015?].$c2015 300 $a20 p.$cIl. 520 $aO modelo atual e desenvolvimento humano, associado ao crescimento populacional, estabelece um aumento contínuo da produção de alimentos, com dependência efetiva da disponibilidade de recursos hídricos. Dessa forma, o setor agropecuário, um dos mais expostos às variações das condições climáticas, necessita definir ações estratégicas de gestão racional e eficiente dos recursos naturais, dentre eles os recursos hídricos, para assegurar a produção sustentável de alimentos... 650 $aEmergência 650 $aImpacto Ambiental 650 $aImpacto Econômico 650 $aPerda da Produção 650 $aPrevisão do Tempo 650 $aProdução Agrícola 650 $aRecurso Hídrico 653 $aPrevenção
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