Effect of water application on wine quality and yield in 'Carménère' under the presence of a shallow water table in Central Chile

Chile is the world's leading producer of 'Carménère' ( Vitis vinifera L.), which in turn is an important variety in Chile, where vineyards are typically grown under irrigated conditions and a large percentage are located in valleys with similar water table levels to those of the study...

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Bibliographic Details
Published in:Chilean journal of agricultural research 2017-04, Vol.77 (2), p.171-179
Main Authors: Jara, Jorge, Holzapfel, Eduardo A, Billib, Max, Arumi, Jose L, Lagos, Octavio, Rivera, Diego
Format: Article
Language:English
Subjects:
AGRICULTURE, MULTIDISCIPLINARY
AGRONOMY
Comparative analysis
Crop yield
Crop yields
Drip irrigation
Evapotranspiration
Food
Food quality
grape production
Grapes
Growth
Irrigation
Irrigation (Agriculture)
Science
Seasons
Seeds
Shallow water
stem water potential
total polyphenol index
Valleys
vineyard
Vineyards
Vitis vinifera
Water stress
Water table
Wineries & vineyards
Wines
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Summary:Chile is the world's leading producer of 'Carménère' ( Vitis vinifera L.), which in turn is an important variety in Chile, where vineyards are typically grown under irrigated conditions and a large percentage are located in valleys with similar water table levels to those of the study area. Different irrigation management strategies have been used to improve wine quality, such as water stress and deficit irrigations, but the presence of a water table has not been considered in extant literature. This study analyzes the effects of the irrigation regime on grape yield and wine quality when a shallow water table is located between 1.5 to 2.2 m depth during the irrigation season. Five applied water treatments: 0%, 20%, 40%, 75%, and 100% of estimated vineyard evapotranspiration (ETc) were applied in an own-rooted 'Carménère' vineyard located in the Peumo Valley (Chile) during three consecutive seasons (2004-2005 to 2006-2007). Applying 1400 to 9400 m3 ha-1 per season (100% ETc) had no substantial effect on the measured quality parameters, although grape production in the treatment without irrigation (0% ETc) was significantly reduced. Applying water at 20% to 40% ETc produced high yield (13 to 16 t ha-1), double the historical mean production, and high quality wine with the presence of a water table close to the bottom of the root zone.
ISSN:0718-5820
0718-5839
0718-5839
DOI:10.4067/S0718-58392017000200171