Post-Veraison Water Stress and Pruning Level on Merlot Grapevine (Vitis vinifera L.): Effects on Berry Development and Composition

Table 1

Interaction effect of pruning level and post-veraison water stress on Merlot grapevine total anthocyanins and phenols.

Pruning level	Water stress	Anthocyanin (mg/g)	Anthocyanin (mg/berry)	Phenols (mg/g)	Phenols (mg/berry)
Severe	Intense	1.88 ± 0.03^a	1.75 ± 0.08^a	1.73 ± 0.02^a	1.42 ± 0.03^a
Standard	Intense	1.72 ± 0.06^c	1.46 ± 0.02^d	1.57 ± 0.04^d	1.28 ± 0.03^cd
Light	Intense	1.57 ± 0.03^e	1.33 ± 0.02^f	1.47 ± 0.04^f	1.20 ± 0.02^e
Minimal	Intense	1.41 ± 0.01^h	1.17 ± 0.02^h	1.30 ± 0.03^i	1.07 ± 0.01^h
Severe	Moderate	1.86 ± 0.02^a	1.64 ± 0.02^b	1.67 ± 0.03^b	1.37 ± 0.02^b
Standard	Moderate	1.65 ± 0.03^d	1.43 ± 0.02^de	1.54 ± 0.02^de	1.27 ± 0.01^d
Light	Moderate	1.48 ± 0.03^fg	1.29 ± 0.03^fg	1.40 ± 0.02^gh	1.16 ± 0.01^fg
Minimal	Moderate	1.29 ± 0.02^j	0.89 ± 0.04^k	1.18 ± 0.01^k	0.81 ± 0.02^k
Severe	Light	1.78 ± 0.03^b	1.58 ± 0.03^c	1.62 ± 0.02^c	1.31 ± 0.02^c
Standard	Light	1.61 ± 0.03^de	1.40 ± 0.02^e	1.49 ± 0.02^ef	1.25 ± 0.01^d
Light	Light	1.39 ± 0.02^hi	1.11 ± 0.03^i	1.27 ± 0.03^ij	1.02 ± 0.04^i
Minimal	Light	1.21 ± 0.02^k	0.83 ± 0.04^l	1.11 ± 0.04^l	0.73 ± 0.01^l
Severe	None	1.51 ± 0.03^f	1.31 ± 0.02^f	1.42 ± 0.01^g	1.18 ± 0.02^ef
Standard	None	1.44 ± 0.02^gh	1.23 ± 0.01^g	1.36 ± 0.01^h	1.12 ± 0.02^g
Light	None	1.35 ± 0.02^i	1.01 ± 0.04^j	1.23 ± 0.01^j	0.94 ± 0.05^j
Minimal	None	1.13 ± 0.05^l	0.77 ± 0.04^m	1.03 ± 0.07^m	0.62 ± 0.04^m
Mean		1.52	1.26	1.40	1.11
CV		1.87	2.59	2.09	2.13
LSD		0.05	0.05	0.04	0.04
P value

Means within a column followed by same letter(s) are not significantly different at 5% LSD test.