Preharvest Antitranspirant Spray on Cherries: Part 1. effect on fruit size
Antitranspirants (wax emulsions) have been evaluated for several years as orchard sprays to increase fruit size by reducing water stress in the tree. In earlier work with cherries (California Agriculture, August 1972) antitranspirant (AT) spray applied shortly before harvest substantially increased fruit size. However, more information was needed on the best spray concentration and timing to influence fruit size, yield, and soluble solids content. Further, no definitive tests had been conducted to evaluate the postharvest effects on fruit caused by preharvest AT application to the trees.The tests reported here indicate that AT spray has beneficial effects on fruit size and on postharvest characteristics of the cherry fruit.