Year C.I F.W. SC-b F.F TSS TA TSS/TA 2005 3 71.4 ± 3.6ab 2 2.5 ± 0.4ab 16.3 ± 0.6c 10.5 ± 0.2a 1.5 2006 2 65.2 ± 4.0a 3 2.7 ± 0.3ab 16.1 ± 0.4c 14.4 ± 0.6b 1.1 2007 4 69.0 ± 1.7ab 2 1.6 ± 0.1a 13.1 ± 0.5ab 15.6 ± 0.3b 0.8 2009 2 82.9 ±3.8b 2 2.9 ± 2.0b 11.9 ± 0.4a 17.3 ± 0.6b 0.7 2010 3 73.8 ± 3.6ab 2 2.8 ± 0.4b 12.2 ± 0.6a 11.0 ± 0.4a 1.1 2011 4 72.8 ± 3.4ab 2 1.7 ± 0.1a 14.9 ± 0.3bc 9.0 ± 0.2a 1.6 2012 2 69 ± 1.9ab 2 2.4 ± 0.2a 15.9 ± 0.6bc 16.4 ± 0.3b 1 Avg 2.9 72.1 ±1 0.2 3.2 2.4 ± 0.1 14.4 ± 0.6 13.1 1.1

Table 1: Main physical-chemical traits from apricots, cv ‘Pisana’, recorded over a 7-year period: C.I. (crop index, kg/tree), F.W. (fruit weight, g), SC-b (skin colour of the blushed side), F.F. (flesh firmness, kg 0.5 cm-2), TSS (total soluble sugars, °Brix), T.A. (titratable acidity, meq 100 g-1 FW), TSS/TA (sugars/acids ratio). Mean ± standard error. Means within the same column followed by the same letter, do not differ significantly according to Tukey test at p ≤ 0.05.