Data/hora: 01/06/2024 21:54:56

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 18/11/2021
Data da última atualização: | 08/06/2022
Autoria: | AMARANTE, C. V. T. do; ARGENTA, L. C.; FREITAS, S. T. de; STEFFENS, C. A.
Afiliação: | CASSANDRO VIDAL TALAMINI DO AMARANTE, UDESC; LUIZ CARLOS ARGENTA, EPAGRI; SERGIO TONETTO DE FREITAS, CPATSA; CRISTIANO ANDRE STEFFENS, UDESC.
Título: | Efficiency of pre-harvest application of 1-MCP (Harvista 1.3 SC) to delay maturation of Cripps Pink apple fruit.
Ano de publicação: | 2022
Fonte/Imprenta: | Scientia Horticulturae, v. 293, 110715, 2022.
DOI: | https://doi.org/10.1016/j.scienta.2021.110715
Idioma: | Inglês
Conteúdo: | The objective of this study was to evaluate the efficiency of pre-harvest application of 1-methylcyclopropene?-cyclodextrin in concentrated magnesium sulfate solution (1-MCP; Harvista? 1.3 SC) to delay maturation of ?Cripps Pink? apple fruit. 1-MCP was sprayed at 0, 75, 150, 225 and 300 mg L? 1 , seven days before the anticipated harvest time (DBAH). Aminoethoxyvinylglycine (AVG, 124 mg L? 1 , Retain®) was sprayed 28 DBAH, as a commercial control treatment. Fruit maturation was delayed by increasing 1-MCP concentration. 1-MCP at concentrations ? 150 mg L? 1 delayed by six and 15 days the time for the fruit to reach the harvest firmness of 71.1 N and 66.7 N, respectively, compared to untreated fruit. Skin color changes (red color development and background degreening) were inhibited by increasing 1-MCP concentrations up to 300 mg L? 1 . The reduction of ethylene synthesis, and the loss of flesh firmness and starch content occurred by increasing 1-MCP concentrations up to 98.2, 134.5 and 182.3 mg L? 1 , respectively. The AVG treatment delayed ethylene production and skin red color development at harvest more markedly than the highest concentration of 1-MCP (300 mg L? 1 ). However, both treatments (AVG and 1-MCP at 300 mg L? 1 ) had late harvested fruit (28 days after spraying 1-MCP) with percentage of skin red color below 40%. The results show that 1-MCP delays maturity, but concentrations ?135 mg L? 1 do not improve its efficacy on preserving flesh firmness while might inhibit skin red color development in ?Cripps Pink? apples.
Palavras-Chave: | Agendamento de colheita; Cor da pele; Cripps Pink; Firmeza de carne; Inibição da ação do etileno; Pré-colheita de 1-MCP.
Thesagro: | Maçã; Malus Domestica; Pós-Colheita; Regulador de Crescimento.
Thesaurus Nal: | Apples; Postharvest physiology; Postharvest technology; Postharvest treatment.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (59679-1) - UPC - AP - DD -  -  -  - DIS