Abstract
The effect of UV radiation at 360 nm on mycelial growth of Botrytis cinerea and Rhizopus stolonifer and their postharvest decay on peach (Prunus persica L.) fruits was investigated. Data proved that exposing for 5-6 min was significantly the most effective dose in decreasing the mycelial growth of both tested fungi as compared with the other exposure doses. Exposing peach fruits to UV-light significantly decreased decay of inoculated peach fruits. As regards, exposure time for 6 min gave the best results in suppressing the postharvest decay of peaches. Slight differences in weight loss values were detected in fruits inoculated with R. stolonifer and exposed to UV at different exposure periods compared with uninoculated fruits or those inoculated with B. cinerea. Exposing inoculated fruits with each of the tested fungi to UV-irradiation slightly affected the percentage of soluble solids content. On the other hand, exposing healthy fruits for 2-4 min significantly decreased soluble solids content as compared with untreated fruits or those exposed for 6 min.
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