Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/1001
Título: Cover cropping in a sloping, non-irrigated vineyard: 2 - effects on vegetative growth , yield, berry and wine quality of Cabernet Sauvignon grapes
Outros títulos: Enrelvamento em vinha de encosta não regada: 2 - efeitos no crescimento vegetativo, produção e qualidade do mosto e vinho, casta Cabernet Sauvignon
Autor: Monteiro, Ana
Lopes, C.M.
Machado, J.P.
Fernandes, N.
Araújo, A.
Palavras-chave: grapevine
cover crops
growth
yield
quality
videira
crescimento
rendimento
Data: 2008
Editora: Estação Vitivinicola Nacional
Citação: "Ciência e Técnica Vitivinicola". ISSN 0254-0223. 23: 1 (2008) 37-43
Resumo: Grapevine vegetative growth, yield, fruit composition and wine quality were studied in the Estremadura Winegrowing Region of Portugal in a ‘Cabernet Sauvignon’ slopping non-irrigated vineyard. During three seasons three treatments were compared: soil tillage (control), permanent resident vegetation, and permanent sown cover crop. When compared to soil tillage, the inter-row sward treatments displayed a lower predawn leaf water potential from bloom to mid-ripening. These differences in vine water status did not affect vine yield or berry sugar accumulation; however, in the third season after experiment setup it induced a significant reduction in vegetative growth in the sward treatments, compared to soil tillage. This vegetative growth reduction had a positive effect on grape composition by reducing titratable acidity and increasing berry skin total phenols and anthocyanins. Those differences were also detected in the wines by the judges who gave a better classification to the wines from the sward treatments. Our results indicate that cover cropping can be a valuable tool for controlling vigour and enhancing wine quality in this winegrowing region.
URI: http://hdl.handle.net/10400.5/1001
ISSN: 0254-0223
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