Abstract
SummaryFruits of a commercial cultivar of persimmon (Diospyros kaki L.) were harvested at four different maturity levels and treated with ethephon (2-chloroethylphosphonic acid), by dipping for varying lengths of time. The results indicated that dipping time had no effect on any of the measured characters and that the dry matter content of the fruits was not affected by any of the treatments. Fruit firmness and pedicel removal force decreased as a result of both ethephon treatment and maturity level at harvest. Percentage weight loss, pH, titratable acidity and soluble solids were significantly affected by maturity level but ethephon effect on these characters was minimal. The ratio of soluble solids to titratable acidity was found to be a poor indicator of maturity. It was concluded that although ethephon applications positively affected fruit ripening in persimmons, endogenous factors controlling natural ripening had a much greater effect.
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