Abstract

RODRIGUEZ, Mariela; ARJONA, Harvey E.  and  GALVIS, Jesús Antonio. Pineapple guava fruit (Acca sellowiana Berg) clone 41 (Quimba) and 8-4 ripening in summertime temperatures found on the Sabana de Bogotá. Agron. colomb. [online]. 2006, vol.24, n.1, pp.68-76. ISSN 0120-9965.

A ripening study was carried out involving two promising clones in the environmental conditions found at Sabana de Bogotá (reduced rainfall, 16,35 oC and 65,1% HR) for selecting the best pineapple guava fruit (Acca sellowiana Berg) for exportation. The 8-4 clone was evaluated for 14 d and the 41 (Quimba) clone for 18 d. Respiratory intensity, total soluble solids, titratable total acidity, pH and weightloss were determined every day. Respiratory intensity was determined by gas chromatography; sugars were determined every 2 d by HPLC. Both clones exhibited a climactic respiration pattern and fructose, sucrose and glucose were the most abundant sugars during ripening. Although no significant statistical differences were observed between clones, the 8-4 clone had larger weight loss and the 41 (Quimba) clone conserved its biochemical characteristics for a longer time.

Keywords : respiratory intensity; total soluble solids; sugars; fructose; glucose; sucrose.

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