Data/hora: 16/06/2024 08:38:34

Biblioteca(s): | Epagri-Sede.
Data corrente: | 20/06/2018
Data da última atualização: | 20/06/2018
Autoria: | ARGENTA, L. C.; SCOLARO, A. M. T.; AMARANTE, C. V. T.; VIEIRA, M. J.
Título: | Preharvest treatment of 'Gala' apples with 1-MCP and AVG - II: effects on fruit quality after storage.
Ano de publicação: | 2018
Fonte/Imprenta: | ACTA HORTICULTURAE, Cartagena, Murcia, Spain, n. 1194, p. 127-133, 2018.
Idioma: | Inglês

Conteúdo:

The effects of preharvest treatment with 1-methylcyclopropene (1-MCP) in
water on post-storage apple fruit quality were examined in comparison to that of
aminoethoxyvinylglycine (AVG). 1-MCP (150 mg L-1) and AVG (124 mg L-1) were
sprayed to ?Imperial Gala? and ?Royal Gala? apple trees, 7 and 28 days before
commercial fruit harvest maturity, respectively, during four consecutive years.
Untreated trees were used as control. Fruit were harvested weekly, during four weeks
from the 7th day after 1-MCP spray and stored in regular air at 0.5°C for 120 days, or in
controlled atmosphere (CA) at 0.7°C for 210 days, plus 7 days at 22°C. Regression
analyzes for fruit quality attributes as a function of harvest date were performed to
estimate post-storage firmness, soluble solids content, acidity and disorder indices
for the estimated harvest dates when fruit of all three preharvest treatments achieved
the same firmness of 71.1 N, at harvest. Preharvest 1-MCP and AVG treatments slowed
softening and decreased severity of physiological disorders and decay associated to
the delay of harvest date, depending on orchard, cultivar, and storage atmosphere.
However, sprayable 1-MCP and AVG did not affect rates of fruit softening and internal
browning development following air storage and did not affect or reduce rates of fruit
softening and internal browning development following CA storage, if treated and
untreated apple fruit were harvested at the same firmness. Sprayable 1-MCP and AVG
did not reduce fruit cracking and decay following storage when fruit of these two
treatments were harvested with same firmness of control fruit (71.1 N). Effects of AVG
were similar to or greater than those of sprayable 1-MCP for retent.

Palavras-Chave: | ethylene; firmness; harvest date; internal browning; Malus × domestica.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_40727.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (102323-1) - UPC - AP - DD -  -  -  - DIS