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…

Symbiotic microorganisms application in vineyards: impacts on grapevine performance and microbiome

Microorganism-based inoculants have been suggested as a viable solution to mitigate the adverse effects of climate change on viticulture. However, the actual effectiveness of these inoculants when applied under field conditions remains a challenge, and their effects on the existing soil microbiota are still uncertain. This study investigates the impact of arbuscular mycorrhizal fungi inoculation on grapevine performance and microbiome. The study was conducted in a vineyard of Callet cultivar in Binissalem, Mallorca, Spain. Two different treatments were applied: control and inoculation with commercial mycorrhizae complex of Rhizoglomus irregulare applied to plants through irrigation.

Grape pomace, an active ingredient at the intestinal level: Updated evidence

Grape pomace (GP) is a winemaking by-product particularly rich in (poly)phenols and dietary fiber, which are the main active compounds responsible for its health-promoting effects. GP-derived products have been proposed to manage cardiovascular risk factors, including endothelial dysfunction, inflammation, hypertension, hyperglycemia, and obesity. Studies on the potential impact of GP on gut health are much more recent. However, it is suggested that, to some extent, this activity of GP as a cardiometabolic health-promoting ingredient would begin in the gastrointestinal tract as GP components (i.e., (poly)phenols and fiber) undergo extensive catabolism, mainly by the action of the intestinal microbiota, that gives rise to low-molecular-weight bioactive compounds that can be absorbed and utilized by the body.

Sensory profile of wines obtained from disease-resistant varieties in La Rioja

The European wine industry is facing multiple challenges derived from climate change and the pressure of different fungal diseases that are compromising the production of traditional varieties. A sustainable alternative maybe the adoption of resistant varieties.
In this study, we have evaluated the enological potential of 9 resistant varieties (5 white and 4 red varieties) in La Rioja. Microvinifications were carried out with three biological replications. Oenological parameters were very diverse with acid content varying from 2.6 g/L to 6.6 g/L.

Overall conceptual characterization of aged dry white wines using a mental descriptive questionnaire

The purpose of the present study was to understand the overall concept of an aged dry white wine using a descriptive mental questionnaire. A total of 680 worldwide participants, grouped according to their involvement in the wine business, replied to an online questionnaire to characterize the sensory analytical and synthetic descriptors of an aged dry white wine. The descriptors were selected using a Check-All-That-Apply (CATA) approach concerning wine colour, aroma, taste, mouthfeel, and global appreciation.

Exploring relationships among grapevine chemical and physiological parameters and mycobiome composition under drought stress

Improving our knowledge on biotic and abiotic factors that influence the composition of the grapevine mycobiome is of great agricultural significance, due to potential effects on plant health, productivity, and wine characteristics. Among the various environmental factors affecting the morphological, physiological, biochemical and molecular attributes of grapevine, drought stress is one of the most severe, becoming increasingly an issue worldwide.