Table 5

Impact of shoot-thinning time on berry composition of Cabernet franc, 2001–2002.

			TA								Phenols		Anthocyanins
	Brix		(g/L)		pH		Hue		Intensity		(mg/L)		(mg/L)
Treatment	2001	2002	2001	2002	2001	2002	2001	2002	2001	2002	2001	2002	2001	2002
^aMeans followed by different letters are significantly different, p ≤ 0.05, Duncan’s multiple range test.
^bBoldfaced data are significantly different from the control according to Dunnett’s t test.
^c, , , **, and ns indicate significance at p ≤ 0.05, 0.01, 0.001, 0.0001, and not significant, respectively.
Control	21.8c^a	23.1cd	8.1	7.4b	3.32b	3.40e	0.35b	0.44	3.53ab	2.41c	1351b	2394b	999b	961
Double prune	23.2a^b	24.3a	8.2	7.4b	3.35ab	3.47b	0.37a	0.43	3.65a	2.80a	1612a	2849ab	1070a	962
09–12	22.8ab	23.3c	8.0	7.4b	3.33ab	3.43d	0.36ab	0.44	3.52ab	2.39c	1445ab	2440b	1017ab	973
15	23.0a	23.6b	8.2	7.4b	3.33ab	3.46c	0.36ab	0.43	3.55ab	2.65b	1560a	3734a	1024ab	983
19–21	22.7ab	22.9d	8.2	7.8a	3.32b	3.37f	0.36ab	0.43	3.57a	2.35c	1463ab	2489b	1038ab	866
25–27	22.0bc	23.7b	7.9	7.1c	3.38a	3.50a	0.37a	0.44	3.34bc	2.66b	1490ab	2637ab	998b	918
29–31	22.1bc	23.7b	8.3	7.1c	3.34ab	3.47b	0.37a	0.44	3.28c	2.73ab	1349b	2544b	976b	981
Significance^c	***	****	ns	****	ns	****	*	ns	*	****	*	*	*	ns
Thin linear^c	*	****	ns	****	ns	****	ns	ns	*	****	ns	ns	ns	ns
Thin quadratic^c	ns	**	ns	****	ns	****	ns	ns	ns	***	ns	ns	ns	ns
Control vs thinning^c	**	****	ns	ns	ns	****	ns	ns	ns	****	ns	ns	ns	ns