AbstractDevelopment of disorders during postharvest ripening and storage of fruit depends on a range of preharvest factors. The most obvious of these is maturity of fruit at harvest. However, a number of other factors may be just as important in ripening-related disorders and in determining how fruit respond to low temperatures or other imposed postharvest conditions. Fruiting position on the tree and fruit temperature history are two of the most important ofthese factors. In apples, position strongly influences fruit mineral contents, and consequently incidence of postharvest disorders such ...

a b s t r a c tChemical fungicides are widely used for the control of preharvest fungal diseases. However, they may induce changes in quality characteristics, accelerating or delaying senescence. The effects of preharvest application of fenhexamid, or pyraclostrobin + boscalid, on tomato fruit (Solanum lycopersicum L.) cvs. Raf, Amadeo and Nereida, were compared to untreated fruit at harvest and during storage. The impact of fungicides in Nereida tomatoes was notable as fruit treated with fenhexamid displayed increased in maturity index, weight loss and the accumulation of vitamin C compared ...