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Post-harvest performance of fruit from a plum - apricot hybrid (Pluot) var. Flavorich and the effects of a modified atmosphere.

Julio Retamales A.1 y Bruno Defilippi B.

Post-harvest performance of Flavorich pluots was evaluated. The fruit was cold stored for between 30 and 40 days, using modified atmospheric packaging (MAP) treatments, which allowed different levels of gases to be attained. Additionally, fruit was evaluated after maintaining it at 20°C by measuring pulp firmness, soluble solids, titratable acidity, pulp color and water loss. No benefits of using MAP treatments were observed except for reduction of water loss from the fruit. Fruit could be cold stored for as long as 40 days without apparent symptoms of senescence, maintaining adequate firmness and high levels of soluble solids. Additionally, fruit acidity was low, and the presence of physiological disorders was not observed.

Key words: stone fruit, plumcot, firmness, soluble solids, acidity.

1 Instituto de Investigaciones Agropecuarias, Centro Regional de Investigación La Platina, Casilla 439/3, Santiago, Chile. E.mail: jretamal@inia.cl.

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