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Different behaviour of two grapevine cultivars under similar irrigation management

Author:
Montoro, A., Valdes, E., Vilanova, M., Moreno, D., Serrano, K., Salinas, R., Manas, F., Sanchez-Felipe, L., Lopez-Urrea, R.
Source:
Acta horticulturae 2017 no.1150 pp. 477-484
ISSN:
0567-7572
Subject:
Vitis vinifera, canopy, cultivars, deficit irrigation, flowering, grapes, harvesting, irrigation management, nitrogen, planting, semiarid zones, vineyards, water stress, Spain
Abstract:
This paper summarizes the effects of three deficit irrigation regimes on different quantitative and qualitative characteristics on two cultivars of grapevine. The experimental work was carried out in 2014 in a vineyard planted with white cultivars of Vitis vinifera L. 'Airén' and 'Macabeo' located in Albacete (central Spain), under semi-arid climate conditions. The vineyard was planted in 1999, plant spacing was 3×1.5 m and the whole plot was irrigated by a drip system with one line per row and emitters every 0.5 m within the line. Cultural practices and canopy management were similar in both cultivars. The three irrigation regimes were: T1: water stress after veraison, T2: water stress before veraison, and T3: sustained deficit irrigation treatment from flowering to harvest. The parameters analyzed were components of yield, technological maturity, nitrogen and aromatic composition of grapes. Results suggest a different behaviour between the two cultivars of grapevine under similar irrigation management. 'Airén' showed differences in yield whereas 'Macabeo' showed differences in grape composition.
Agid:
5689717