terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Qualitative and productive characterization of a minority variety: ‘Branco lexítimo’ in DO Ribeira Sacra (Spain)

Qualitative and productive characterization of a minority variety: ‘Branco lexítimo’ in DO Ribeira Sacra (Spain)

Abstract

The actual climate changes, together with the strong regulation of the European Union and Spanish government, in search of sustainable viticulture, have forced the recovery of minority varieties, expanding the range of grape varieties, as well as the possible development of wines with unique profiles. In the Ribeira Sacra DO (Spain), a comparative study of the agronomic and qualitative behavior of the ‘Branco lexítimo’ variety has been carried out, compared to the majority white variety in the DO: ‘Godello’, located in the same study plot, with identic soil and climatic conditions. The study contemplated the analysis of phenology and leaf water potential, as well as the productive results and the analysis of the must quality, during four seasons: 2018 – 2021. No significant differences in phenology were observed, despite a certain advance of the ‘Godello’ variety, on the contrary, a better leaf water potential has been observed in ‘Branco lexítimo’, even in dry years (2020). Results have shown that ‘Branco lexítimo’ (8,700 kg ha-1) obtain lower yield than ‘Godello’ (12,700 kg ha-1), mainly due to lower number of bunches per plant and average weight, except to 2018 season, where ‘Branco lexítimo’ obtain higher. Similar must quality results were obtained, with no significative difference to sugars, pH, total acidity, malic and tartaric acids. A tendency to greater total acidity, generated by the amount of malic acid, is observed for the ‘Branco lexítimo’ variety, except to 2020, the driest year of the study period. However, must yeast-assimilable nitrogen (YAN) and Free α-Amino Nitrogen (FAN), during the four study seasons, were always higher in ‘Branco lexítimo’, which facilitates a better wine fermentation, improving the expression of all the volatile compounds present in this variety. Despite the lower yields of the ‘Branco lexítimo’ variety, its qualitative improvement and its oenological potential make it a viable alternative in the DO Ribeira Sacra.

DOI:

Publication date: October 9, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Fandiño M.1*, Pérez-Añón R.2, Vilanova M.3,4, Rodríguez-Febereiro M1, Cancela J.J.1,4

1 GI-1716. Universidade de Santiago de Compostela. Campus Terra, Lugo, Spain
2 Adega Ponte da Boga. Castro Caldelas, Ourense, Spain
3 Consejo Superior de Investigaciones Científicas CSIC- Instituto de Ciencias de la Vid y del Vino (ICVV), Carretera de Burgos, Logroño, Spain
4 CropQuality: Crop stresses and their effects on Quality (USC), Unidad Asociada al CSIC-ICVV

Contact the author*

Keywords

yield 1, YAN 2, Godello 3, temperate climate 4, malic acid 5

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Effects of different soil types and soil management on greenhouse gas emissions 

Soil is important in the carbon cycle and the dynamics of greenhouse gases (CO2, CH4 and N2O). Key soil characteristics, such as organic matter content, texture, structure, pH and microbial activity, play a determining role in GHG emissions[1]. The objective of the study is to delimit different types of soil, with different soil management and to be able to verify the differences in CO2, CH4 and N2O emissions. The study was carried out in a vineyard of Bodegas Campo Viejo in Logroño (La Rioja), whose plant material is Vitis vinifera L. cv. Tempranillo.

Read More

Influence of polysaccharide extracts from wine by-products on the volatile composition of sparkling white wines

In the production of sparkling wines, during the second fermentation, mannoproteins are released by yeast autolysis, which affect the quality of the wines. The effect of mannoproteins has been extensively studied, and may affect aroma and foam quality. However, there are no studies on the effect of other polysaccharides such as those from grapes. Considering the large production of waste from the wine industry, it was proposed to obtain polysaccharide-rich extracts from some of these by-products[1].

Read More

Aroma characterization of mold resistant base wines for sparkling wine produced in a warm-temperate area at two different altitudes

In a recent context where consumers pay an increasing attention to sustainability and eco-friendly aspects in the decision-making process, the use of the resistant varieties in the wine sector have returned to the attention. In this context, the use of mould-resistant grape varieties would be an opportunity for sparkling wine producers as it can reduced the pesticide utilization in grape management and hence production costs.
However, the use of the resistant varieties to produce the base wine may be strongly influenced due to its requirements for a particular balance between sugars and acidity to ensure the quality of the final product. In addition, the aromatic profile of base wine plays a crucial role in the perception of the quality of the sparkling wine.

Read More

Irrigation frequency in four grapevine red varieties in Spain. Effect on must volatile composition

The irrigation water management in the vineyard is a crucial aspect to obtain sustainable quality production over time. Previous studies have set the water requirements to be applied in the vineyard at 30 % of the reference evapotranspiration (ET0), although there are no studies that settle the effects of the frequency of irrigation application on red varieties in Spain. The present study contemplates the application of deficit irrigation (30 % ET0) applying a weekly dose in a single irrigation (T07) or in two irrigation events (T03) per week. The study has been carried out in 2021-2022 with four red varieties in different Spanish wine regions: Garnacha Tinta (Badajoz), Tempranillo (Valladolid), Syrah (Albacete) and Mencía (Lugo). The effects of irrigation frequency on must volatile composition have been evaluated through GC-MS.

Read More

Energy partitioning and functionality of photosystem II in water-stressed grapevines during heatwaves revealed by continuous measurements of chlorophyll fluorescence

The increased intensity and frequency of heatwaves, coupled with prolonged periods of drought, are a significant threat to viticulture worldwide. During these conditions the more exposed leaves can show visible symptoms of heat damage. We monitored the functionality of photosystem II (PSII) in the field to better understand the impact of heatwaves on canopy performance. A factorial experiment was established in summer 2023 using Shiraz grapevines in the Barossa valley of South Australia, involving water-stressed and well-watered vines.

Read More