Terroir 2008 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2008 9 Climate component of terroir 9 Agronomic behaviour of a native grapevine cultivar from the North of Spain (Vitis vinifera L.) in a mountain viticulture area and in a coastal zone

Agronomic behaviour of a native grapevine cultivar from the North of Spain (Vitis vinifera L.) in a mountain viticulture area and in a coastal zone

Abstract

A work involving the finding, the description and the recovery of old grapevine varieties from the north and north east of Spain was begun in the CSIC in the year 1987. Among the red varieties that were found, the Verdejo Negro stood out because of its high quality. Different previous works (Martínez and Pérez 1999, 2000; Martínez et al. 2004, Santiago et al, 2003) have allowed us to know this cultivar from the ampelographic, agronomic and molecular point of view.
The aim of this study was to compare the agronomic behaviour of Verdejo Negro in two different climate areas from North Spain: one from a mountain viticulture area and other from a coastal one. In each of these areas we have an experimental plot. The first one is placed in western south of Asturias region; it is located in the slope of a mountain and has an altitude of about 506 meters with a strong slope; the geological base of the soil is formed basically by shale, sandstone and quartzite. The stocks were planted in 1991. The second plot is located in the south of Galicia region, near from the Atlantic coast, in an area without slope and with an altitude of about 35 meters. The geological bases of the soil are glandular orthogneis. The stocks were planted in 1993. In both cases the plants are grown en espalier, but pruning methodology is different and adapted to the conditions of the two areas studied. In the mountain plot pruning is made using a Guyot system and in the littoral one the Sylvoz system is used.
During four years (2002, 2005, 2006 and 2007) several agronomic parameters were measured such as the fertility rate, weight, length and width of bunches, probable alcoholic grade, must yield, pH and total acidity of the must.
The results showed that for some parameters, such as probable alcoholic grade and pH, there were no significant differences between plots, but for other parameters, as for example fertility rate, grape production per plant, must yield and total acidity, significant differences were found.

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

MARTÍNEZ M.C.; GAGO P.; BOSO S.; ALONSO-VILLAVERDE V. and SANTIAGO J.L.

Misión Biológica de Galicia (CSIC), Apartado correos 28, 36080 Pontevedra, España

Contact the author

Keywords

agronomic characterization, Verdejo Negro, littoral area, mountainous area

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

The impacts of frozen material-other-than-grapes (MOG) on aroma compounds of red wine varieties

An undesirable note called “floral taint” has been observed in red wines by winemakers in the Niagara region caused by large volumes of frozen leaves and petioles [materials-other-than-grapes (MOG)] introduced during mechanical harvest and subsequent winemaking late in the season. The volatiles, which we hypothesized are responsible, are primarily terpenes, norisoprenoids, and specific esters in frozen leaves and petioles. The purpose of this study was to investigate the volatile compounds which may cause the floral taint problem and explore how much of them (thresholds) may lead to the problem. Also, the glycosidic precursors of some of these compounds were analyzed to see the changes happening during frost events.

Aromatic profile of six different clones of Chardonnay grape berries in Minas Gerais (Brazil)

Aromas are one of the key points in food analysis since they are related to character, quality and consequently consumer acceptance. It is not different in the winery industry, where the aromatic profile is a combination of viticultural and oenological practices. Based on the development of more aromatic clones and on the potential to produce sparkling wines at Caldas, in the southern region of Minas Gerais (Brazil) (21°55´S and 46°23´W, altitude 1,100m), the aim of this work was the determination of volatile compounds in six different clones of Chardonnay grape berries to better understand which compounds add bouquet to the wine, and additionally comprehend the impacts of the edaphoclimatic and annual conditions on the improvement of grape-growing and winemaking practices.

Improving stilbenes in vitis Labrusca L. Grapes through methyl jasmonate applications

Grapes (Vitis sp.) are considered a major source of phenolic compounds such as flavonols, anthocyanins and stilbenes. Studies related to the beneficial effects of these compounds on health have encouraged research aimed at increasing their concentration in fruits. On this behalf, several plant growth regulators such as jasmonic acid and its volatile ester, methyl-jasmonate (MeJa), have demonstrated promising results in many fruits. However, Brazilian subtropical climate might interfere on treatment response. The present study aims to evaluate the application of MeJa in the pre-harvest period in Concord and Isabel Precoce grapes (Vitis labrusca L.).

Service crop effects on grapevine water and nitrogen status and yield under Mediterranean climate

Service crops in vineyard can provide multiple ecosystem services but they can also lead to competition with the grapevine for soil resources in the Mediterranean region due to potential severe droughts (Garcia et al., 2018). One of the levers of action to manage this competition is the choice of species adapted in terms of growth dynamics and water and nutrients’ needs. The objectives of this study were to determine the effect of temporary service crops on grapevine water and nitrogen status and grapevine yield and yield components in a Mediterranean vineyard.

Impact of deficit irrigation strategies on terpene concentration in Gewürztraminer grapes

Deficit irrigation is a viticultural practice often applied to improve the phenolic composition of red grapes and wines. However, the impact of this practice on grape terpenes – key aromatics for several grapes and wines – remains largely unknown. This study investigated the impact of deficit irrigation strategies on free and glycosylated terpenes in Gewürztraminer grapes. In a field study conducted in Oliver, BC, in 2016, 2017, and 2018, deficit irrigation regimes were applied to Gewürztraminer vines at different developmental stages (pre-veraison = Early Deficit, ED; post-veraison = Late Deficit, LD; throughout the season = Prolonged Deficit, PD). A well-irrigated control (CN) treatment was also established.