تعیین ویژگیهای کیفی و زمان بهینه برداشت میوه ها به منظور تبدیل و فراوری

Appropriate harvesting time of fruits and vegetables is one of the most important quality factors for many purposes such as storage, processing and fresh markets. For determination of maturity index and the best harvesting time of main fruits in Qoochan region the samples of Golden and Red Delicious apples, domestic varieties of cherry and sour cherry and Thompson seedless grape were harvested daily from one week before and after conventional harvesting time. Texture for apple varieties and other factors such as the total soluble solids, acidity, maturity index (TSS/acidity) and energy units were determined each day for all sample fruits. The data were statistically analyzed and the results showed that the best harvesting time for Thomson seedless grape, Golden and Red delicious apples are 2, 14, 15 October respectively, 24 May for cherry and 21 June for sour cherry are recommended . However the climate is very effective factor on date of harvesting and maturity of fruits