ISSN: 0041-3216 (Online), 0041-3216 (Print)
Volume 65 Number 2
Harvest maturity effects on mango fruit ripening. (153)
The maturity at harvest of Tommy Atkins mango (Mangifera indica L.) was found to have an important effect on the development of fruit quality when ripened at 25°C. Fruits harvested at the mature and half-mature stages developed good quality characteristics, but immature fruits showed only limited changes during ripening. Treatment with either 1.0 ml litre-1 ethylene or acetylene initiated ripening at all three maturity stages, although ripening remained incomplete in immature fruits. Mature fruits ripened faster than both half-mature and immature fruits when not treated with exogenous ethylene or acetylene. The ripening rate of fruit in successive harvests over a four-week period increased during the season. Acetytene treatment appeared more effective with early season harvests, notably for peel colour development; the overall effect was less apparent in late season fruit. If harvesting of immature fruit is avoided, both ethylene and acetylene treatments at 1.0 ml litre - l for 24 h at 25°C improve the uniformity in quality by inducing simultaneous ripening and have potential in the commercial ripening of mango.
Keywords: Mango; Harvest maturity; Ethylene; Acetylene; Ripening