Hormonal control of parthenocarpic fruit set in 'Rojo Brillante' persimmon (Diospyros kaki Thunb.)

Accordingly, we suggest that fruit set depends on the induction of gibberellin (GA) and IAA responses in the persimmon, and since there is no shortage of hormones or carbohydrates at anthesis, ethylene production at anthesis seems the most plausible cause of the physiological fruitlet abscission.