A study was carried out during two years (2004 and 2005) at Bairrada Delimited Region (littoral/centre of Portugal) with the white cultivar “Fernão Pires” for the evaluation of the effects of tillage application in a non-irrigated commercial vineyard with a long term natural cover crop. In the two years of the experiment, during the growing season the climate was dry, especially in 2005. Consequently, a moderat...
The evaluation of shoot density and basal leaf removal effects on canopy structure, canopy microclimate and on vigour and vegetative growth was carried out during 3 years (2004 to 2006) on ‘Alfrocheiro’ vine variety, at Dão Delimited Region, Center-North of Portugal. Three different shoot densities were assayed (at G stage of Baggiolini scale): control (D1), 18 shoots.m-1 row (D2) and 12 shoots.m-1 row (D3). At...
With the objective of costs reduction in winter pruning, a trial field was conducted from 2008 to 2010 to compare mechanical pruning (MEC = hedge pruning) with manual pruning (MAN), in the Dão region, Portugal, with the red grape variety Alfrocheiro, one of the most important of this denomination. The different types of pruning had already been introduced in 2007. The results obtained showed the same effect dur...
The variety Cabernet Sauvignon has revealed in the São Francisco Valley (9º02' S; 40º11' W) a high potential of quality, but with some limitations on its adaptation to this “terroir”. The rootstocks with effective affinity are yet unknown and the material with many virus infections makes difficult its culture, particularly in terms of yield, which generally is very low. With the objective to maximize the behavi...
Entre 2004 e 2006, na região do Dão, numa vinha plantada em 1990 com a casta Touriga-Nacional, conduzida em MVA, avaliaram-se os efeitos de diferentes densidades de varas por metro de sebe (D23; D17; D11), de realizar, ou não, quer desfolha (F1; F0), quer monda ao pintor (M1; M0), no microclima do coberto, no rendimento e na qualidade da uva e do vinho. Nenhuma das intervenções provocou alterações significativa...
Na casta Alfrocheiro foram estudados, ao longo de três anos (2004 a 2006), os efeitos de três intervenções em verde (densidade de sarmentos, desfolha e monda). O ensaio, instalado na região do Dão numa vinha privada (Dão Sul S.A.), comportou três densidades de sarmentos (testemunha, 18 e 12 sarmentos/m de sebe), duas modalidades de desfolha (desfolha basal ao pintor e testemunha). Em 2005 e 2006 avaliaram-se ai...
Foreseeing climatic changes, the abnormally hot and dry year of 2005 can be revealer of some varieties behavior in different climatic conditions. In three experiments, done in private companies, (Dão Sul, Caves Messias and Quinta de Lourosa), the behavior of ‘Touriga Nacional’ vine variety, with different technological itineraries, was studied. In Dão, it was evaluated the influence of shoot density (23, 17 and...
Na casta ‘Alfrocheiro’ foram estudados, ao longo de três anos (2004 a 2006), os efeitos de três intervenções em verde (densidade de sarmentos, desfolha e monda). O ensaio, instalado na região do Dão numa vinha privada (Dão Sul – Soc. Vitivinícola, S.A.), comportou três densidades de sarmentos (26, 18 e 12 sarmentos/m de sebe), duas modalidades de desfolha (desfolha basal ao pintor e testemunha). Em 2005 e 2006 ...
The evaluation of shoot density, basal leaf removal, and cluster thinning effects on canopy microclimate characteristics and their influence on yield and fruit composition, was carried out during 2 years (2005 to 2006) on one of the most important and noble Portuguese vine varieties – ‘Touriga Nacional’. The experimental field belongs to the private company Dão Sul, Soc. Vitivinícola, SA, located at Dão region,...
Antevendo mudanças climáticas, o ano de 2005 por ora anormalmente quente e seco poderá ser revelador do comportamento de algumas castas em diferentes condições climáticas. Em três ensaios a decorrer em empresas privadas (Dão Sul, Caves Messias e Quinta de Lourosa), estudou-se o comportamento da Touriga Nacional com diferentes itinerários tecnológicos. No Dão avaliou-se a influência da densidade de sarmentos (23...
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