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. 2022 May 22;11(10):1378. doi: 10.3390/plants11101378

Table 2.

Effect of irrigation (treatment) and experimental season (year) and their interactions on values of vegetative, agronomic and polyphenolic content of cv. Tempranillo grapes at harvest.

Significance of Effects Treatment Year Treatment × Year
Leaf area (LA) *** n.s. n.s.
Cluster number (CN) *** n.s. n.s.
Cluster weight (CW) *** *** n.s.
Berry weight (BW) *** *** ***
Yield (Y) *** *** n.s.
Leaf area/yield (LA/Y) n.s. n.s. *
Glucosides (Glu) *** *** n.s
Acetates (Ac) *** *** **
Coumarates (Coum) *** *** **
Cyanidine (Cy) *** ** **
Delphinidine (Dp) *** ** n.s
Malvidine (Mv) *** *** *
Peonidine (Pn) *** n.s n.s
Petunidine (Pt) *** *** n.s
Total anthocyanins ( ∑An) *** *** n.s
(−)-Epicatechin (EC) *** ** n.s
(+) Catechin (CA) *** ** n.s
(−)-Catechin gallate (CG) *** * n.s
(−)-Epigallocatechin (EGC) *** *** **
Pro A2 *** n.s n.s
Pro B1 *** *** ***
Pro B2 *** n.s n.s
Pro B3 *** n.s n.s
Total flavanols ( ∑FLAVA) *** * **
Kaempferol-3-Glucoside (KpG) *** *** **
Kaempferol-3-Rutinoside (KpR) *** *** **
Isorhamnetin-3-Glucoside (IhG) ** *** **
Isorhamnetin-3-Rutinosido (IhR) *** *** ***
Quercetin-3-Glucoside (QcG) *** *** **
Quercetin-3-Rutinosidoe (QcR) * n.s **
Quercetin-3-Glucuronide (QcGR) *** *** ***
Quercetin-3-Galactoside (QcGL) * ns **
Myricetin-3-Glucoside (MyG) *** *** **
Total flavonols ( ∑FLAVO) *** *** ***
Gallic acid (GA) *** *** ***
Caffeic acid (CF) *** n.s ***
Chlorogenic acid (CHL) *** ** n.s
p-coumaric acid (COU) *** *** ***
t-Cinnamic acid (CIN) *** *** ***
t-Ferulic acid (FE) * n.s n.s
Total hydroxycinnamic acids ( ∑HA) *** *** ***
t-Resveratrol (tR) *** *** ***

Treatment: Irrigation procedures (RH, IH, RL, IL) are explained in Section 4.2. ANOVA test significance level. n.s.—not significant; * = p < 0.05; ** = p < 0.01; *** = p < 0.001.