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Sodium bicarbonate reduces postharvest decay development on melons |
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| Authors: | Y Aharoni E Fallik A Copel M Gil S Grinberg JD Klein |
| Institution: | a Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel b Department of Field Crops, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel |
| Abstract: | Sodium bicarbonate (SBC) inhibited in vitro mycelial growth of A. alternata, Fusarium spp. and R. stolonifer. SBC action was fungistatic rather than fungicidal. Coating commercially harvested ‘Galia’ and ‘Ein-Dor’ melons with wax containing 2% SBC reduced decay incidence after storage and shelf life simulation by four to seven-fold, to a commercially acceptable level of 6–7%, compared to untreated or waxed-treated controls. This treatment also maintained the fresh and blemish-free appearance of the fruit at harvest. Higher concentrations of SBC (3%) were phytotoxic and significantly reduced general fruit appearance. A trial shipment by sea transport to Europe demonstrated that 2% SBC incorporated into a wax coating maintained the marketability of ‘Galia’ melon fruits compared to that of untreated fruit. SBC can be an alternative biocide to the fungicide imazalil, thus eliminating unwanted residues on melon fruits. |
| Keywords: | Cucumis melo var reticulatus Disease control NaHCO3 Allyl-1-2 4-Chlorophenyl-2-imidazol-1-ylethylether |
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