Issue |
E3S Web Conf.
Volume 50, 2018
XII Congreso Internacional Terroir
|
|
---|---|---|
Article Number | 01007 | |
Number of page(s) | 5 | |
Section | Componentes de los Terroir | |
DOI | https://doi.org/10.1051/e3sconf/20185001007 | |
Published online | 22 August 2018 |
Consecuencias de la aplicación de distintas dosis de riego en la producción, el desarrollo vegetativo y la calidad de uva del cv. Cabernet Sauvignon en el valle del río Duero
Consequences of the application of different irrigation doses on grape yield, vegetative development and quality in cv. Cabernet Sauvignon in the Duero river valley
1
Instituto Tecnológico Agrario de Castilla y León,
47071
Valladolid,
España
2
Actualmente: actividad vitivinícola externa,
España
La influencia del riego en zonas de clara escasez pluviométrica es conocida en general, pero la cantidad de agua aplicada en una zona de cultivo determinada puede afectar de modo particular a la producción y a la calidad de la uva. A lo largo del periodo 2012-2014 se estudió la respuesta agronómica a la aplicación de 3 tratamientos de régimen hídrico: secano (P0), riego del 25% ETo (P1) y riego del 50% ETo (P2), aplicado desde tamaño guisante hasta vendimia. El ensayo se llevó a cabo con cv. Cabernet Sauvignon sobre portainjerto 110R, plantado en 2004 y conducido en espaldera en cordón Royat bilateral, con marco de plantación de 2,2 m x 1,2 m, en Valladolid. El desarrollo vegetativo aumentó progresivamente con la dosis de riego, incrementándose el peso de madera de poda un 31% al pasar del tratamiento P0 al P1, y un 27% al pasar del P1 al P2, debido al peso del sarmiento. El rendimiento en uva también aumentó con las dosis de agua, un 25% al pasar del tratamiento P0 al P1 y un 13% al pasar del P1 al P2, debido mayormente al peso del racimo. La concentración de azúcares se vió ligeramente favorecida por el riego. El pH del mosto mostró cierta tendencia a la reducción con el riego, sobre todo con el de mayor dosis, a la par que la acidez titulable, el ácido tartárico y el ácido málico aumentaron con el riego, sobre todo con el de mayor dosis. El K y el IPT no mostraron diferencias notables ni constantes entre tratamientos, aunque en general el K aumentó algo con el riego y el IPT se redujo ligeramente con el riego de mayor dosis.
Abstract
The influence of irrigation in areas of clear pluviometric scarcity is generally known, but the amount of water applied in a given area of cultivation can have a particular effect on the production and quality of the grape. Throughout the period 2012-2014, the agronomic vine response to 3 treatments of water regime was studied: rainfed (P0), irrigation of 25% ETo (P1) and irrigation of 50% ETo (P2), from pea size state until harvest. The trial was developed with vines of cv. Cabernet Sauvignon onto 110R rootstock, planted in 2004 and vertically trellised as a bilateral Royat cordon. The vine distances were 2.2 m x 1.2 m. It was located in Valladolid (Spain). The vegetative development increased progressively with the irrigation dose, increasing the weight of pruning wood by 31% when going from treatment P0 to P1, and 27% when passing from P1 to P2, due to the shoot weight. Grape yield also increased with water doses, 25% from P0 to P1 and 13% from P1 to P2, due mainly to cluster weight. The sugar concentration was slightly favored by irrigation. The pH of the must showed a certain tendency to reduction with irrigation, especially with the higher dose, while the titratable acidity, tartaric acid and malic acid increased with irrigation, especially with the higher dose. K and IPT showed no significant or constant differences between treatments, although in general the K increased somewhat with irrigation and the IPT was slightly reduced with higher dose of irrigation.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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