Effects of delayed winter pruning on vine performance and grape composition in cv. Merlot

Open Access

Table 2

Leaf area, yield components and compositional traits of Merlot vines pruned in different phenological phases. Data averaged over 2014-2016.

Treatment	Leaf area (m²/ vine)	Yield (kg / vine)	Clusters / vine (n)	Cluster weight (g)	Berry weight (g)	Soluble solids (°Brix)	pH	Titratable acidity (g/L)	Leaf-to-fruit ratio
WP	6.10 a	2.68 a	13.9 a	185 a	2.13 a	24.5 a	3.62 a	5.78 c	2.66 c
LP	5.26 ab	1.60 b	13.3 a	116 b	1.89 b	23.5 b	3.53 b	6.76 b	4.05 b
VLP	3.44 b	0.78 c	11.5 b	65 c	1.54 c	22.5 c	3.47 b	7.84 a	6.05 a
Significance	*	**	*	**	**	*	*	*	*
Year	*	**	ns	**	**	**	*	ns	*
T x Y	ns	ns	ns	ns	ns	ns	ns	ns	ns

Different letters within a column indicate significant differences after Tukey test.

Asterisks indicate significance at: * P ≤ 0.05; ** P ≤ 0.01 ; ns not significant

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