Agronomic and oenological behavior of the minority Mandón variety on two rootstocks in the D.O. Arribes
A large population of vines of the Mandón minority red variety (synonymous with Garró) has been located in old vineyards of the D.O. Arribes (Zamora and Salamanca) to conserve and recover this minority variety. The wines made with this variety are characterized by their good structure and color, interesting harmony, an excellently low pH, with high acidity, as well as complex aromas of blue fruits and a marked and expressive minerality.
The objective of this work is to know the agronomic and oenological suitability of the minority variety Mandón (Garró) on two rootstocks, 110-R and 3309-C in the DO Arribes. The study was carried out in the 2014-2019 period in a trial located in the town of Villarino de los Aires (Sa). The vines have been trained on a trellis, NNE-SSO orientation and bilateral Royat cordon formation. The plot soil, characteristic of the D.O. Arribes is slightly acidic, shallow, with a loamy-sandy texture and low in organic matter.
The results show that the vegetative development of Mandón on 110-R indicates that it is more vigorous than 3309-C, with a higher weight of pruning wood and vine shoots. In the trend of this vigor, the 110-R rootstock is slightly more productive than the 3309-C, showing a greater number of clusters per vine and higher yield, although with somewhat smaller berries. The berry quality parameters indicated that the 3309-C rootstock reaches a probable alcoholic degree and a total acidity higher than 110-R. The results reveal that the Mandón variety obtains a better adaptation and conjunction with the 110-R rootstock than with 3309-C, with a better behavior in slightly acid soil, showing overall better vegetative and productive balance with a berry good quality.
Acknowledgements: Thanks to the financial support of the Junta de Castilla y León (Spain), ITACyL, and the VARMINVID project(FEADER funds). Thanks to Villarino de los Aires Town Hall for its contribution and their help in the vineyard operations.
Issue: ICGWS 2023
1 Instituto Tecnológico Agrario de Castilla y León (ITACyL). Valladolid, España
2 Information Technology Group. Wageningen University & Research (WUR). Wageningen. Gelderland. Netherlands