Tools to modify cherries harvest time in Alto Valle de Río Negro and Neuquén, Argentina

Cherry production is characterized by a very short fruit development period that covers an average of 80 days from flowering to harvest. Although there are varieties with different cycles, the harvest in Alto Valle de Río Negro and Neuquén, Argentina, highly concentrated. The possibility extending allows improve logistics, decongest packing work regulate certain extent supply cherries on market. Fruit perishable non-climacteric fruits have low counter season, which determines unsaturated foreign market obtain good prices. highest prices depend size quality time (early late). aim this was evaluate feasibility using growth regulators bio-stimulants extend sweet period. use hydrogen cyanamide (HC) early advance Retard Cherry® (RCH) late delay harvesting were evaluated. In addition, effect gibberellins (Gb) maturity improvement HC allowed bloom 10 7 New Star, while RCH delayed (10 days) (5 Santina, Lapins Regina cherries. application Gb at 20 ppm straw yellow stage until start pink improves fruits, but delaying decreases later applications. window nearly days, depending each cultivar meteorological conditions season.