ISHS Acta Horticulturae 1340: V International Conference on Postharvest and Quality Management of Horticultural Products of Interest for Tropical Regions
Continuous spraying of putrescine during peach fruit development increased fruit size and postharvest fruit firmness |
| Authors: | J.A. Diego A., O. Franco-Mora |
| Keywords: | fruit handling, growth, phenolic compounds, Prunus, rheological properties |
| DOI: | 10.17660/ActaHortic.2022.1340.19 |
| Abstract:
Putrescine (PUT) was applied at 0 (control), 3.5 and 7.0 mM to ‘CP-0019’, ‘CP-0036’ and ‘Diamante’ peach trees (Prunus persica L. Bastch) at 23 d after full bloom, and then every 25 d till 25 d before harvest. PUT at 3.5 mM increased fruit weight (P≤0.05) and diameter among all three cultivars at harvest relative to controls. ‘CP-0019’ peaches treated with 3.5 mM PUT also contained higher (P≤0.05) levels of phenolic compounds than controls throughout all the fruit growth period. At harvest, the ‘CP-0019’, ‘CP-0036’ and ‘Diamante’ peaches treated with 3.5 mM PUT demonstrated increased (P≤0.05) flesh firmness, in relation to control, by 40, 18 and 30%, respectively. At postharvest, the ‘CP-0019’, ‘CP-0036’ and ‘Diamante’ peaches at 3.5 mM PUT had 23, 13 and 31% increased (P≤0.05) flesh firmness compared to control fruit. | |
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