E. Cohen et al., WATER-LOSS - A NONDESTRUCTIVE INDICATOR OF ENHANCED CELL-MEMBRANE PERMEABILITY OF CHILLING-INJURED CITRUS-FRUIT, Journal of the American Society for Horticultural Science, 119(5), 1994, pp. 983-986
Water loss was found to be a nondestructive indicator before visible s
ymptoms of chilling injury (CI) in cold-stored grapefruit (Citrus para
disi Macf.) and lemon (C. limon L. Burm. f.). The water-loss rate incr
eased significantly after removing the fruit from cold storage and hol
ding at 20C. Scanning electron microscopy revealed large cracks around
the stomata. Changes in electrical conductivity of the flavedo tissue
s, total electrolyte leakage, and K+ or Ca2+ leakage were all inadequa
te predictors of CI, appearing only after CI was evident.