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Acta universitaria
On-line version ISSN 2007-9621Print version ISSN 0188-6266
Abstract
CANCINO-LABRA, Samuel; ALIA-TEJACAL, Iran; LOPEZ-MARTINEZ, Víctor and JUAREZ-LOPEZ, Porfirio. Fruit growth in three ecotypes of dry-season Spondias purpurea L. Acta univ [online]. 2023, vol.33, e3768. Epub Sep 15, 2023. ISSN 2007-9621. https://doi.org/10.15174/au.2023.3768.
Mexican plum is a tropical fruit widely consumed fresh. Although it has a high diversity, there is not enough research on fruit growth kinetics. The objective of this work was to determine a series of physical, chemical, and physiological changes during fruit growth. Trees of three ecotypes were evaluated, from fruit set to physiological maturity. Results revealed a rapid increase of fruit respiration in the three fruit ecotypes between the day 30 and 60 of the fruit growth, although respiration decreased afterwards; likewise, a similar behavior was observed with the titratable acidity. Flavor index was higher in Amarilla (12.2) than in Morada and Roja. Thus, fruit growth in these ecotypes of Mexican plum appeared to be double sigmoidal with 90 days of duration, where the titratable acidity, flavor index, polar diameter, luminosity, and chromaticity help to differentiate among them.
Keywords : Fruit; growth; respiration rate; taste index; hue.