Ácido giberélico no retardamento da maturação de caquis (Diospyrus kaki, L.), cultivar Fuyu

Ferri, Valdecir Carlos; Rinaldi, Maria Madalena; Silva, Jorge Adolfo; Luchetta, Luciano; Marini, Leonor João; Rombaldi, César Valmor

doi:10.1590/s0101-20612004000100001

Cited by 14 publications

(17 citation statements)

References 10 publications

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“…A redução na acidez, provavelmente é devido à atividade metabólica que leva a um aumento no consumo dos ácidos orgânicos e radicais ácidos que compõem a parede celular. Segundo Ferri (2000) a queda nos teores de acidez durante o armazenamento pode ser devido, em parte, ao consumo de moléculas ácidas, em especial os ácidos orgânicos durante o processo de respiração (Figura 4).…”

Section: Resultado E Discussãounclassified

Conservação e fisiologia pós-colheita de folhas de Capuchinha (Tropaeolum majus L.)

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Barbosa

Costa

et al. 2011

Rev. bras. plantas med.

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RESUMO:Este trabalho teve como objetivo avaliar a vida útil pós-colheita de folhas de Capuchinha (Tropaeolum majus L.) embaladas com filme PVC de baixa densidade e proteínas nas concentrações de 1, 3 e 5%. O experimento foi conduzido no Laboratório de Química e Bioquímica do Centro de Ciências Agrárias (CCA) da Universidade Federal da Paraíba (UFPB) Areia -PB. As folhas de Capuchinha colhidas no CCA foram levadas imediatamente ao Laboratório de Química e Bioquímica, para pré-seleção, desinfestação em água clorada contendo 100mg.L -1 de cloro ativo, e seca à temperatura ambiente. Após o controle fitossanitário, as folhas foram submetidas aos seguintes tratamentos: solução de proteína nas concentrações de 1, 3 e 5%, filme PVC de baixa densidade e a testemunha sem recobrimento. As folhas foram armazenadas durante cinco dias em temperatura média de 26 -29 º C e umidade relativa média de 59,5 -71,5% e outra parte foi armazenada em câmara fria com temperatura média de 12 ± 0,5 º C e umidade relativa média de 95 ± 3%. Durante o período de armazenamento as folhas foram avaliadas quanto à perda de massa fresca, determinação de ácido ascórbico, sólidos solúveis e acidez titulável. O armazenamento durante quatro dias sob refrigeração a temperatura média de 12 ± 0,5 º C associada ao recobrimento com filme PVC mostrou melhores resultados na conservação da vida útil pós-colheita das folhas de Capuchinha. Palavras-chave: comprimento, diâmetro, rendimento.ABSTRACT: Conservation and postharvest physiology of leaves Capuchin (Tropaeolum majus L.) .This study aimed to evaluate the shelf-life of Capuchin sheets (Tropaeolum majus L.) packed with plastic wrap and low density proteins at concentrations of 1, 3 and 5%. The experiment was conducted at the Laboratório de Química e Bioquímica and the Centro de Ciências Agrárias (CCA) of the Universidade Federal da Paraíba (UFPB) Areia -PB. Capuchin leaves harvested in the CCA were taken immediately to the Laboratório de Química e Bioquímica, for pre-screening, disinfection in chlorinated water containing 100mg.L -1 of active chlorine, and dried at room temperature. After spraying, the leaves were treated as follows: protein solution at concentrations of 1, 3 and 5%, low density plastic wrap and uncoated witness. The leaves were stored for five days in average temperature from 26 to 29°C and relative humidity from 59.5 to 71.5% and another part was stored in cold with average temperature of 12 ± 0.5°C and relative humidity of 95 ± 3%. During the storage period the leaves were evaluated for weight loss, determination of ascorbic acid, soluble solids and titratable acidity. Storage for four days under refrigeration at an average temperature of 12 ± 0.5°C associated with PVC film coating showed better results in the conservation of shelf-life of Capuchin sheets.

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Section: Resultado E Discussãounclassified

Conservação e fisiologia pós-colheita de folhas de Capuchinha (Tropaeolum majus L.)

Ribeiro

Barbosa

Costa

et al. 2011

Rev. bras. plantas med.

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“…This study was conducted in 'Fuyu' persimmon trees established in commercial orchard in Farroupilha -RS -Brazil (29°31' south, 51°21' west, about 750m altitude), which injuries occurrence history has been followed since 2001(FERRI et al, 2004b CS at 0ºC±1ºC and RH of 92±5%. The storage period was of 45 days.…”

Section: Methodsmentioning

confidence: 99%

“…In order to minimize this problem, studies have been aimed at enlarging the commercialization period and at delaying the maturation rate of fruits, either in the field or during the postharvest period (COLLINS & TISDELL, 1995;WOOLF et al, 1997;BRACKMANN et al, 1999;GIRARDI et al, 2003;HARIMA et al, 2003;FERRI et al, 2004a;FERRI & ROMBALDI, 2004;SALVADOR et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…However, it was observed that such procedure affects negatively the yield of the orchard in the year following the application (FERRI et al, 2004b). Pulverizations with Calcium under the form of Calcium Chloride in the preharvest period also contribute for the improvement of the conservation potential (FERRI, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…The skin browning in fruits is still a limiting factor for the storage of 'Fuyu' persimmon in southern Brazil (FERRI & ROMBALDI, 2004). In the research conducted by (GONÇALVES et al, 2004), it was observed that the browning characterized by skin cracks and grooves is associated to the delay on the fruit harvest, resulting in high soluble solids concentration and bioconversion of sucrose into glucose and fructose, thus increasing the localized osmotic pressure.…”

Section: Introductionmentioning

confidence: 99%

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Boron and calcium sprayed on 'Fuyu' persimmon tree prevent skin cracks, groove and browning of fruit during cold storage

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Effects of pre-harvest gibberellic acid spraying on gene transcript accumulation during peach fruit development

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In order to understand early molecular events associated with increase in fruit size and woolliness prevention induced by pre-harvest gibberellic acid (GA 3 ) spraying, differential transcript accumulation of genes encoding proteins putatively involved in protein folding and protection, cell wall metabolism, and endomembrane transport was studied during fruit development of 'Chiripá' peach. Woolliness occurrence reached 100% in untreated peach, was reduced by 15% with GA 3 spraying at the end of the pit hardening stage and was significantly reduced (by 78%) in peaches treated at the beginning of the pit hardening stage despite a significantly increased fruit size. Low incidence of woolliness after cold storage and fruit size increase in early GA 3 treated peach was correlated with high transcript accumulation of genes encoding proteins putatively involved in protein folding, and protection of the endoplasmic reticulum (heat shock proteins-HSP40 er) and chloroplast (HSP17.8 ch), endomembrane transport (GTPase), as well as genes involved in cell wall loosening (expansins-Exp1, Exp2, Exp3, Exp4).

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Ácido giberélico no retardamento da maturação de caquis (Diospyrus kaki, L.), cultivar Fuyu

Cited by 14 publications

References 10 publications

Conservação e fisiologia pós-colheita de folhas de Capuchinha (Tropaeolum majus L.)

Conservação e fisiologia pós-colheita de folhas de Capuchinha (Tropaeolum majus L.)

Boron and calcium sprayed on 'Fuyu' persimmon tree prevent skin cracks, groove and browning of fruit during cold storage

Effects of pre-harvest gibberellic acid spraying on gene transcript accumulation during peach fruit development

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