A technical tour is programmed for Thursday 23rd of September. During this tour attendants will have the chance to visit typical greenhouses growing papayas as well as some of the most advanced designs for cultivating this crop. We will discuss climate control inside the greenhouse (heating and nebulization), ventilation and radiation management in this limiting environment that provides, too, several clear advantages in comparison with open air orchards. Visit will include also modern nurseries where sex-markers selection of papaya plantlets is carried out as well as different vegetative procedures (in vitro, cutting and grafting). The visit will finish after arriving to cooperatives and packing houses. Light refreshment is included during the trip. Lunch will be served at 14 h. Arrival to the hotels is scheduled around 17:00 h.