terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Phenolic composition profile of cv. Tempranillo wines obtained from severe shoot pruning vines under semiarid conditions

Phenolic composition profile of cv. Tempranillo wines obtained from severe shoot pruning vines under semiarid conditions


One of the limitations of vineyards in warm areas is the loss of wine quality due to higher temperatures during the grape ripening period. In order to adapt the vineyards to these new climatic conditions, a possible solution is to delay the ripening process of the grapes towards periods with milder temperatures, by means of management practices and thus improve the quality of the fruit and the wine produced. The technique of severe shoot pruning (SSP) has proven useful in achieving this objective. This technique consists of trimming the developed primary shoots at the end of flowering, above the node number seven. The aim of this work was to evaluate the effect of SSP under drought conditions and high temperatures on the ‘Tempranillo’ wine phenolic composition compared with non-trimming vines (NT) grown under conventional practices (just winter pruning) during the 2022 season. None of the treatments were irrigated. The wines were elaborated according to traditional red wine-making method and their general and chromatic parameters were analysed. Respect to NT, the SSP treatment showed slightly lower ethanol content and significantly reduced the dry extract, pH, malic acid and potassium, total phenolic content and color intensity values. When the polyphenolic profile of wine was analysed by HPLC techniques, respect to NT wines, the SSP ones showed an increase in coumarilated anthocyanins, and a decrease in the concentration of monoglucoside anthocyanins, flavonols, phenolics acids and total anthocyanins content. In conclusion, under these study conditions (including non-irrigation, extremes temperatures and dry weather), severe pruning of the vine shoots was not effective in improving the phenolic profile of the wine. It would therefore be necessary to analyse this technique accompanied by supportive irrigation during the ripening cycle of the grapes.

Acknowledgements: This research was supported by funds from Project IB20082, the ERDF, Junta de Extremadura, AGA001 (GR21196) and Investigo Program, financed by The Recovery and Resilience Facility. The authors would like to thank Bodegas Viñas De Alange S.A. for their collaboration.


Publication date: October 13, 2023

Issue: ICGWS 2023

Type: Poster


Lavado N1*, Dorado M.J1, Mancha L.A1, Valdés M.E1, Uriarte D1, Guerra M.T2, Fondón-Aguilar A1, Moreno D1

1Centro de Investigaciones Científicas y Tecnológicas de Extremadura, 06187 Badajoz (España)
2Centro Universitario Santa Ana (CUSA). IX Marqués de la Encomienda, 2, 06200 Almendralejo, Badajoz

Contact the author*


anthocyanin, flavanol, flavonol, phenolic acids


2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series


Related articles…

Can soil nitrate explain polyphenol and anthocyanin content in vineyard with similar available soil water regime? 

Nitrogen (N) is quite important nutrient in grapevine development and must quality, but under Mediterranean climatic conditions, available soil water (ASW) during grapevine development can also influence vigour and must quality. The aim was to determine the influence of soil nitrate (NO3-) availability on N foliar, yield, and must quality in vineyards with similar available water holding capacity (AWC). For this purpose, four cv. Tempranillo (Vitis vinifera L.) vineyards were selected. All of them are placed in Uruñuela municipality (La Rioja, Spain), separated less than 2.5 km and in a slope <1 %, in soils with similar soil chemistry properties and with similar rooting depth (ranging between 105 cm and 110 cm).

Possible methods of adaptation to the effects of climate change in the Tokaj Wine Region 

Viticulture’s adaptation to the harmful effects of climate change is globally the biggest challenge of the near future. Short, extremely intensive rainfalls and longer periods of drought are getting more frequent in the Tokaj Wine Region, where the majority of the vineyards are cultivated on steep slopes. Hence, erosion has high risk, especially when combined with the loess-based soils on about ten percent of the region. The environmentally beneficial cover crop and mulch usage can effectively reduce the risk of erosion, according to research done by the Tokaj Wine Region Research Institute of Viticulture and Oenology.

Moderate wine consumption – part of a balanced diet or a health risk?

Consumption of wine/alcoholic beverages remains a topic of great uncertainty and controversy worldwide. The term “no safe level” dominates the media communication and policy ever since population studies in 2018 [1,2] were published, which denied the existence of a J-curve and suggested that ANY consumption of an alcoholic beverage is harmful to health. The scientific evidence accumulated during the past decades about the health benefits of moderate wine consumption, were questioned and drinking guidelines considered to be too loose.

Biodiversity and biocontrol ability of Trichoderma natural populations in soil vineyards from Castilla y León region (Spain)

Trichoderma is a microorganism present in many agricultural soils and some of its species could be used as natural biological control agents. In this work, the presence of natural populations of Trichoderma was estimated in soil vineyard and its biocontrol capacity against Phaeoacremonium minimum, one of the main agent causals of grapevine trunk diseases instead of using pesticides. Moreover, physicochemical variables in soil such as pH, organic matter and nutrients were evaluated to determine a possible correlation to natural populations of Trichoderma.

Atypical aging and hydric stress: insights on an exceptionally dry year

Atypical aging (ATA) is a white wine fault characterized by the appearance of notes of wet rag, acacia blossoms and naphthalene, along with the vanishing of varietal aromas. 2-aminoacetophenone (AAP) – a degradation compound of indole-3-acetic acid (IAA) – is regarded as the main sensorial and chemical marker responsible for this defect. About the origin of ATA, a stress reaction occurring in the vineyard has been looked as the leading cause of this defect. Agronomic, climatic and pedological factors are the main triggers and among them, drought stress seems to play a crucial role.[1]