FRUIT QUALITY CHARACTERISTICS OF FIVE RABBITEYE BLUEBERRY CULTIVARS AND CLONES
A study was conducted comparing berry quality parameters of three rabbiteye blueberry (Vaccinium ashei Reade) cultivars (Brightwell, Climax, and Tifblue) and two advanced breeding clones (T-227 and T-286). Blueberries were harvested in 1988 and 1989 when ripe and color of the blueberry skin was recorded as Hunter "L", "a" and "b". Hue and chroma values were computed. 'Tifblue' color was lighter blue than any other cultivar in 1988, however, 'Climax' was lightest blue in 1989, indicating a cultivar X year interaction. Also, color was lighter blue for 'Climax' and 'Brightwell' than 'Tifblue' in 1988 and 1989. Soluble solids, titratable acidity, glucose and fructose, total solids, pH, and seed numbers were determined. Soluble solids ranged from a high of 14.8% ('Brightwell') in 1988 to 8.7% (T-227) in 1989. T-286 had the highest acidity in both years. The average soluble solids/acid ratio was higher in 1988 (42.0) than in 1989 (27.0) indicating the effects of environmental conditions on berry quality. The sugar/acid ratio of the three cultivars and two clones in 1988 and 1989 indicated better keeping quality for 'Brightwell' than for T-227 and T-286. T-286 had fewer total seeds per berry than the others cultivars in both years. However, the small size of seeds observed in the berries of these cultivars and clones indicate that high seed number did not lessen the berry's palatability.
Austin, M.E. and Bondari, K. (1993). FRUIT QUALITY CHARACTERISTICS OF FIVE RABBITEYE BLUEBERRY CULTIVARS AND CLONES. Acta Hortic. 345, 133-140