Effects of Late Fall Foliar Boron Sprays on the Fruit Set of Sweet Cherry Trees cv. 0900 Ziraat

In this study the effect of boron (B) sprays in late fall to the consistently low yielding 0900 Ziraat sweet cherry trees on the percentage of fruit set was investigated. Four boron doses were applied (0-75-100-150 g / tree, from 20.8 % B source) four weeks before leaf fall. There was an increase in the amount of boron content of spur flower buds in sprayed trees which in turn improved the fruit set of this cultivar (over 30.0 %) compared to untreated control trees (15.7 %). Fall foliar B sprays can be considered a valuable tool for obtaining a better yield in sweet cherry trees when needed.