Table 1. Fruit quality attributes of RubyS apples at harvest

Fruit weight (g)	Firmness (N)	SSC1) (°Brix)	TA2) (%)	Ethylene production (μL/kg/h)	SPI3) (0-8)	Hunter value
						L*	a*	b*
75.0±2.24)	85.4±0.4	13.1±0.2	0.42±0.01	2.63±0.19	7.56±0.04	38.9±3.1	28.5±1.6	13.3±1.4

SSC, soluble solids content.
TA, titratable acidity.
SPI, starch pattern index; 0 (immature stage) - 8 (mature stage).
All values are expressed as mean±SE of triplicate determinations (n=15).