Table 7.

Influence of irrigation on concentration of non-flavonoids compounds (mg. kg⁻¹ berry fresh weight) under two crop load levels. R: rainfed; I: non-limiting irrigation; H: high crop load; L: low crop load. GA: gallic acid; CIN: cinnamic acid; FE: ferulic acid; CF: caffeic acid; CHL: chlorogenic acid; COU: p-coumaric acid; t-R: trans-resveratrol.

		Treatment
Year	Compound	RH	IH	% Variation	RL	IL	% Variation
2014	Hydroxybenzoic acids
	GA	3.06 a	3.19 a	4.25	2.56 a	2.60 a	1.56
	Hydroxycinnamic acids
	CIN	11.41 ab	13.26 a	16.21	11.92 a	5.16 * b	−56.71
	FE	1.11 ab	1.30 ab	17.12	1.76 a	0.64 * b	−63.64
	CF	3.20 ab	3.40 ab	6.25	4.40 a	1.71 * b	−61.14
	CHL	3.07 a	3.58 a	16.61	4.57 a	2.94 a	−35.67
	COU	0.61 a	0.49 a	−19.67	1.12 a	0.56 * a	−50.00
	Total hydroxycinnamic acids	19.40 ab	22.03 ab	13.56	23.78 a	11.01 * b	−53.70
	Stilbenes
	t-R	1.64 a	1.67 a	1.83	1.82 a	1.15 a	−36.81
2015	Hydroxybenzoic acid
	GA	4.18 a	6.48 ** a	55.02	4.84 a	5.79 a	19.63
	Hydroxycinnamic acids
	CIN	16.15 a	8.79 *** b	−45.57	15.03 a	7.99 ** b	−46.84
	FE	0.61 b	0.99 ** a	62.30	0.47 b	0.97 ** a	106.38
	CF	9.33 b	11.46 ** b	22.83	11.80 b	15.32 a	29.83
	CHL	0.99 b	0.44 ** b	−55.56	1.83 a	0.63 ** b	−65.57
	COU	0.89 ab	0.47 b	−47.19	1.16 a	0.33 ** b	−71.55
	Total hydroxycinnamic acids	27.97 ab	22.16 ** b	−20.77	30.30 a	25.24 ab	−16.70
	Stilbenes
	t-R	1.09 a	0.65 ** b	−40.37	1.27 a	0.73 ** b	−42.52
2016	Hydroxybenzoic acid
	GA	14.97 a	6.63 *** b	−55.71	14.28 a	6.95 *** b	−51.33
	Hydroxycinnamic acids
	CIN	60.97 a	42.00 *** b	−31.11	48.42 b	31.12 ** c	−35.73
	FE	1.05 a	1.66 a	58.10	1.05 a	1.02 a	−2.86
	CF	34.62 a	29.46 * ab	−14.90	33.64 ab	28.52 * b	−15.22
	CHL	6.56 a	4.93 ab	−24.85	6.79 a	3.73 ** b	−45.07
	COU	11.44 a	5.57 *** b	−51.31	11.49 a	4.64 *** b	−59.62
	Total hydroxycinnamic acids	114.64 a	83.61 ** b	−27.07	101.39 a	69.02 ** b	−31.93
	Stilbenes
	t-R	5.17 a	3.99 ** b	−22.82	4.12 b	3.42 * b	−16.99

*, **, *** indicate, for the same crop load (H/L), the significance of rainfed in respect to irrigation at p < 0.05, p <0.01, p < 0.001, respectively. For each parameter, means followed by different letters were significantly different between treatments, p < 0.05, Tukey’s HSD test.