RT Journal Article
T1 Effect of Deficit Irrigation on Yield Components and Chemical Composition of Albariño Grapes Grown in Galicia, NW Spain
A1 Fandiño Beiro, María
A1 Vilanova de la Torre, Mar
A1 Rodríguez Febereiro, Marta
A1 Teijeiro Rodríguez, María Teresa
A1 Rey Sanjurjo, Benjamín
A1 Cancela Barrio, Javier José
K1 Irrigation schedule
K1 Water management
K1 Stem water potential
K1 Volatile composition
AB In the context of climate change, water management is crucial for controlling the reproductive growth and quality of grapes. In this study, we aim to determine the effects of different water regimes on the yield components and chemical composition of grape Vitis vinifera Albariño grown in Galicia. Four treatments were tested in the trial: rainfed (T0), irrigated at 30% of ETo from veraison to harvest (T1), from pea-size to harvest (T2), and throughout the whole vegetative cycle (T6). To analyse the effects of irrigation, measures of stem water potential (Ψstem) were obtained fortnightly, from flowering to harvest. During the harvest, the average weight per bunch and the number of bunch and yield per vine were determined. In addition, the Ravaz index was also calculated. The grapes from each experimental treatment were subjected to chemical (OIV methods) and volatile composition (GC-MS) analyses. The results indicated a greater yield in the T0 group. The lowest yield was observed for T2 over the three years of the study. The results also showed a stronger influence of year than treatment on Albariño must include chemical composition parameters. Treatment affected malic acid, total acidity, free amino acids (FAN), and assimilable yeast nitrogen (YAN); meanwhile, of the volatile chemical groups analysed, esters, acetates, and volatile acids were affected by the treatment, while the season affected all chemical families of volatile compounds, with the exception of C6 compounds. The interaction effect of Tr × Y was observed on esters, acetates, and total volatile concentration. In the contrast analysis (p < 0.05), we observed increases in alcohols and terpenes in T6 vs. T2; however, esters and acetates were increased under rainfed treatment (T0) vs. T6.
PB MDPI
SN 2077-0472
YR 2022
FD 2022-09-22
LK https://hdl.handle.net/10347/39019
UL https://hdl.handle.net/10347/39019
LA eng
NO Fandiño, María; Vilanova, Mar; Rodríguez-Febereiro, Marta; Teijeiro, M. Teresa; Rey, Benjamín J.; Cancela, Javier J. (2022). Effect of Deficit Irrigation on Yield Components and Chemical Composition of Albariño Grapes Grown in Galicia, NW Spain. Agriculture. https://DOI.org/ 12(10), 1522, 1-15. 10.3390/AGRICULTURE12101522
NO INIA
NO Lagar de Cervera
DS Minerva
RD 6 jun 2026