บทคัดย่องานวิจัย

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Rootstock and storage regime influence summit cherry quality.

Cavalheiro J., Santos A., Silvestre M., Marques R.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.54

2004

บทคัดย่อ

Rootstock and storage regime influence summit cherry quality.      Summit sweet cherries from five-year old trees grown o­n 4 rootstocks were collected and preserved under normal cold storage (NCS) and under different kinds of controlled atmosphere (CA: 1-2.5% O2 + 10% CO2; 2-2.5% O2 + 15% CO2; 3-2.5 O2 + 20% CO2).

Fruit samples were analysed and their quality evaluated at harvest and 42 days later.At the end of the storage periods, tasting panels evaluated fruit attractiveness and flavour.Rootstock and storage regime significantly influenced all the studied quality parameters: fruit weight, shape, firmness, juice pH, titratable acidity (malic acid), soluble solids content, and fruit/peduncle colour (CIE L* a* b*; L* C* H°).Fruit size and titratable acidity were higher o­n invigorating rootstocks, because of their lower productivities.Fruit ripeness occurred later of Gisela 5, with L* C* H° values being superior to those corresponding to the other rootstocks.

As expected, soluble solids content was higher after NCS than after CA, owing to greater mass loss.Fruits stored under CA 3 maintained a better quality, with greenish peduncles, a light red to pink colour (higer H°), a better attractiveness and more brightness.Fruits from Cab 11E ripened earlier and offered better attractiveness after storage.Tasting panels did not distinguish between fruits from CA 3 and CA2.