Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 2
Written by Mihaela PARASCHIV, Eugenia MARESI, Mădălina MILITARU, Dorel HOZA
In order to study the changes in the quality of the fruits during the storage time, the late ripening seven Romanian genotypes and two international cultivars used as control. Genotypes were refrigerated for different periods of time under conditions of 40C and 75% humidity. Fruit quality indicators: flesh firmness, skin color, pH, total dry weight, total soluble solids content, titratable acidity, total polyphenols content and vitamin C were evaluated starting at the time of fruit harvesting and continuing in the interval 60, 90 and 120 days after harvesting. All tested pear genotypes retained a hight level of quality after 60 days. The degradation of organic acids and vitamin C, the increase followed by decrease in the level of sugars and total dry weight per mass unit in fruits was influenced by the duration of storage. In the Romcor cultivar, firmness and the average weight decreased significantly compared to the other genotypes. The obtained results were significantly influenced by the genetic characteristics and the time of storage.
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