Preharvest application of methyl jasmonate increases crop yield, fruit quality and bioactive compounds in pomegranate 'Mollar de Elche' at harvest and during postharvest storage.

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ID: 29504
2019
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Abstract
Previous reports have addressed the effectiveness of postharvest methyl jasmonate (MeJA) treatments on maintaining quality properties of pomegranate fruit during storage. However, there is no literature regarding the effects of preharvest MeJA treatments on pomegranate 'Mollar de Elche' crop yield, fruit ripening, quality attributes and bioactive compounds content (at harvest or after long-term storage), which were evaluated in this research.Preharvest MeJA treatments (1, 5 and 10 mM) increased pomegranate crop yield. MeJA at 1 and 5 mM accelerated the on-tree ripening process, while it was delayed with 10 mM. Losses in fruit weight, firmness and organic acids during storage at 10 °C were delayed in MeJA treated fruit, leading to quality maintenance. In addition, MeJA treatments improved arils colour due to increased concentration of total and individual anthocyanins, at harvest and during storage. Total phenolic and ascorbic acid contents and total antioxidant activity (hydrophilic, H-TAA, and lipophilic, L-TAA, fractions) were also higher in arils from treated pomegranate fruits than in controls.Preharvest treatments with MeJA could be a promising tool to improve pomegranate crop yield, fruit quality and its content in bioactive compounds at harvest and during storage. The higher effects were obtained with MeJA at 5 mM dose, which could be the selected treatment for practical application purposes. This article is protected by copyright. All rights reserved.
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garcapastor2019preharvestjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors García-Pastor, María E;Serrano, María;Guillén, Fabián;Giménez, María J;Martínez-Romero, Domingo;Valero, Daniel;Zapata, Pedro J;
Journal Journal of the science of food and agriculture
Year 2019
DOI
10.1002/jsfa.10007
URL
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