Effect of Daminozide on Fruit Development and Fruit Quality of Peach (Prunus persica(L.) Batsch) cv. EarliGrande

Abstract

The effect of daminozide on fruit development and fruit quality of peach (Prunus parsica(L.)Batsch) cv. EarliGrande revealed that daminozide applied at 2, 4, 6, 8 and 10 weeks after full bloom did not affect fruit growth and fruit quality of peach incomparison with an untreated plot. The time taken from fruit set to maturity in this cultivar was about 10-14 weeks with a double sigmoid growth curve pattern. The process of pit hardening took about 4 weeks that is from 2^nd to 6^th week after fruits set. Daminozide at 5,000 and 10,000 ppm tented to improve fruits colour, but did not have any effect on fruit weight, soluble solids, titratable acidity, and non-structure carbohydrates contents.