Quality of 'Fuji' apples stored under controlled atmosphere and influence of climate on the incidence of internal browning

Abstract

The objective of this work was to evaluate fruit quality and the relation between climatic conditions controlled atmosphere (CA) of storage, in Fuji apples. Fruit from three orchards (Vacaria, RS, and São Joaquim and Lages, SC) and two years (2006/2007 e 2007/2008) were evaluated. The orchards were daily monitored, during fruit development, for . Fruit were stored during eight months in different CA conditions, at -0.5±0,1ºC and 97% . Pearson's correlations between climatic condition variables and internal browning incidence after CA storage were estimated. Fruit stored under 1.2 kPa of O2 and 2.0 kPa of CO2 had higher titratable acidity, flesh firmness and texture, and lower respiration and ethylene production rates; however these fruit exhibited a high internal browning incidence in comparison to fruit stored at 1.2 kPa of O2 and <0.5 kPa of CO2. The internal browning incidence decreases as the medium daily temperatures occurred between 90 and 210 days after full bloom increase.