Pruning and In-Season Canopy Manipulation Affects MidSouth Juice and Wine Phenolic Content
ORCID
Zhang: https://orcid.org/0000-0002-5797-8347
MSU Affiliation
Extension Service (MSUES); Coastal Research and Extension Center
Creation Date
2026-06-30
Abstract
Low total soluble solids and high titratable acidity limit MidSouth use as a varietal red wine grape. While canopy management practices were reported not to have enough of an effect on these primary metabolites, they could potentially improve MidSouth secondary metabolites, broadening its potential as a wine grape. Two studies assessed the effects of different canopy management treatments on monomeric anthocyanin pigments and total phenolic content in MidSouth juice and wine. The first study compared early pruning, early pruning with leaf removal, normal pruning with leaf removal, and normal pruning. Early pruning with leaf removal showed higher total phenolics in juice and wine in 2021 but lower levels in 2020. The second study evaluated leaf removal, shoot thinning, or neither leaf removal nor shoot thinning. Leaf removal resulted in higher anthocyanins and total phenolics in 2021 juice, while shoot thinning increased total phenolics in 2021 juice and both anthocyanins and phenolics in 2021 wine. Shoot thinning demonstrated the most consistent improvement in phenolic content. MidSouth grapes can produce a range of wine phenolic content, depending on canopy management and postharvest treatment. Further investigation is needed to understand yearly variations and optimize MidSouth for regional red wine production.
Publication Date
10-9-2024
Publication Title
Beverages
Publisher
MDPI
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Rights
© 2024 by the authors
Recommended Citation
Williams, H., Stafne, E., Zhang, Y., & Chang, S. (2024). Pruning and In-Season Canopy Manipulation Affects MidSouth Juice and Wine Phenolic Content. Beverages, 10(4), 98. https://doi.org/10.3390/beverages10040098
