terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Vertical cordon training system enhances yield and delays ripening in cv. Maturana Blanca

Vertical cordon training system enhances yield and delays ripening in cv. Maturana Blanca

Abstract

The growing interest in minority grape varieties is due to their potential for adaptation to global warming and their oenological capabilities. However, the cultivation of these varieties has often been limited due to their low economic efficiency. One such example is Maturana Blanca, a recently recovered and authorized minority grape variety in the DOCa Rioja region, known for its remarkable oenological potential but low productivity. This study aimed to increase the yield of Maturana Blanca by implementing the vertical cordon training system, which allowed for a higher number of buds per plant and an increased cluster count per vine. A comparative analysis was conducted between two training systems, head-trained (HT) and vertical cordon (VC), along with two irrigation regimes, rainfed and irrigation at 30 % of ET0. The results indicated that the training systems had a more significant impact on production and fruit composition compared to the irrigation treatment. Specifically, the VC system increased yield by ranging from 60% to 80% when compared to the HT system. Additionally, the higher productivity observed in the VC vines led to more optimal source-sink ratios, resulting in a tendency toward delayed ripening. This research provides valuable insights into viticultural practices to improve the productivity and quality of minority varieties such as Maturana Blanca and contributes to a broader understanding of sustainable viticulture and biodiversity preservation in the face of climate change. Moreover, our findings have significant implications to promote the cultivation and valorization of this minority grape variety adapted to semi-arid climates as an adaptation measure to counteract the challenges posed by global warming.

Acknowledgments: We would like to thank the winegrowers Pedro Isaac Balda and Pedro José Balda for their willingness to collaborate with us and the ICVV experimental winery laboratory staff.

DOI:

Publication date: October 11, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Miguel Puelles1*, Pedro Balda2, Andreu Mairata1, David Labarga1, Fernando Martínez de Toda1, Alicia Pou1

1Instituto de Ciencias de la Vid y del Vino (CSIC, Gobierno de la Rioja, Universidad de La Rioja), Finca La Grajera, Ctra. Burgos Km. 6, 26007 Logroño, Spain

2Universidad de La Rioja, c/ Madre de Dios, 51, 26006 Logroño, Spain

Contact the author*

Keywords

source-sink, training system, minority varieties, viticulture, grapevine

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Teinturier grapes: Valorization as a source of high-value compounds for the Chilean food industry

The agri-food industry is constantly searching for ingredients of high functional value, healthy and of natural origin. One species of particular interest is Vitis vinifera, due to its recognized antioxidant potential. Among the grape varieties, one group possesses these antioxidant compounds not only in the skin, but also in its pulp: Teinturier. The red grape has traditionally been used for color correction purposes in winemaking, however, its high antioxidant content transforms it into a raw material of high potential for new formulations of ingredients and foods for the health and wellness market.

Accumulation of deleterious mutations in grapevine and its relationship with traits of interest for wine production and resilience

Deleterious mutations that severely reduce population fitness are rapidly removed from the gene pool by purifying selection. However, evolutionary drivers such as genetic drift brought about by demographic bottlenecks may comprise its efficacy by allowing deleterious mutations to accumulate, thereby limiting the adaptive potential of populations. Moreover, positive selection can hitchhike mildly deleterious mutations due to linkage caused by lack of recombination. Similarly, in the context of species domestication, artificial selection mimics these evolutionary processes, which can have undesirable consequences for production and resilience. In this study, we evaluated the extent of the accumulation of deleterious mutations and the magnitude of their effects (also known as genetic load) at the whole-genome scale for ca.

Effect of soil particle size on vine water status, leaf ABA content and berry quality in Nebbiolo grapes

The root and shoot abscisic acid (ABA) accumulation in response to water deficit and its relation with stomatal conductance is longtime known in grapevine. ABA-dependent and ABA-independent signalling response to osmotic stress coexist in sessile plants. In grapevine, the signaling role of ABA in response to water stress conditions and its influence on berry quality is critical to manage grapevine acclimation to climate change.

Distribution and sensory impact of new oak wood-derived compounds in wines

Despite the numerous research studies carried out in recent years, the study of wine aroma remains of great interest due to its complexity. Wine maturation in oak barrels is described as an important step in the production of quality wines. In fact, oak wood develops several aromatic nuances through its toasting which can be released into the wine. A great deal of work has been performed in order to identify the wood-derived volatile compounds that contribute to wine aroma (e.g., whisky-lactone, maltol, eugenol, guaiacol, vanillin).

Acceptability of canned wines: effect of the level of involvement of consumers and type of wine

In recent years there has been a growing demand for alternative packaging designs in the food industry focused on diminishing the carbon footprint. Despite the environmental advantages of cans versus bottles, the traditional environment of wine has hindered the establishment of less contaminant containers. In this context, the objective of this study was to understand and generate knowledge about consumers´ perception of canned wines in comparison to bottled wines.