Apple ( Malus × domestica ) growers can incur significant economic losses when fruit drop before they be harvested [preharvest (PFD)]. In some years and cultivars, more than 30% of potential yield lost. Growers frequently apply plant bioregulators to reduce PFD, either via delay in maturity [aminoethoxyvinylglycine (AVG), 1-methylcycolpropene] or inhibition production cell hydrolysis enzymes th...
