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Severe Shoot Trimming and Crop Size as Tools to Modulate Cv. Merlot Berry Composition

Viticulture production is challenged by climate change and the consequent higher accumulation of carbohydrates in grapevine berries, resulting in high-alcoholic wines. This study investigates the application of severe shoot trimming performed at three different stages and crop size management as too...

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Autores principales: Bubola, Marijan, Persic, Martina, Rossi, Sara, Bestulić, Ena, Zdunić, Goran, Plavša, Tomislav, Radeka, Sanja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785385/
https://www.ncbi.nlm.nih.gov/pubmed/36559683
http://dx.doi.org/10.3390/plants11243571
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author Bubola, Marijan
Persic, Martina
Rossi, Sara
Bestulić, Ena
Zdunić, Goran
Plavša, Tomislav
Radeka, Sanja
author_facet Bubola, Marijan
Persic, Martina
Rossi, Sara
Bestulić, Ena
Zdunić, Goran
Plavša, Tomislav
Radeka, Sanja
author_sort Bubola, Marijan
collection PubMed
description Viticulture production is challenged by climate change and the consequent higher accumulation of carbohydrates in grapevine berries, resulting in high-alcoholic wines. This study investigates the application of severe shoot trimming performed at three different stages and crop size management as tools for the modulation of cv. Merlot berry composition, aimed at reducing the sugar content in the berry. In the first study, the effects of severe shoot trimming carried out at three different phenological stages were studied. In the second study, late severe shoot trimming was combined with two crop sizes and regulated by shoot thinning. The obtained results demonstrated that severe shoot trimming in earlier stages of berry development limited the accumulation of both sugars and anthocyanins as compared to the control treatment. However, when severe shoot trimming was performed at late veraison (at approximately 14 Brix), it decreased only the accumulation of sugars, without affecting the accumulation of anthocyanins. The results of the second study showed that the modification of crop size by shoot thinning significantly affected the measured yield parameters, whereas the effect on Brix and anthocyanins was seasonally dependent. It was concluded that among the studied techniques, severe shoot trimming at late veraison is the most effective way to reduce sugar content in the berry without affecting the accumulation of anthocyanins.
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spelling pubmed-97853852022-12-24 Severe Shoot Trimming and Crop Size as Tools to Modulate Cv. Merlot Berry Composition Bubola, Marijan Persic, Martina Rossi, Sara Bestulić, Ena Zdunić, Goran Plavša, Tomislav Radeka, Sanja Plants (Basel) Article Viticulture production is challenged by climate change and the consequent higher accumulation of carbohydrates in grapevine berries, resulting in high-alcoholic wines. This study investigates the application of severe shoot trimming performed at three different stages and crop size management as tools for the modulation of cv. Merlot berry composition, aimed at reducing the sugar content in the berry. In the first study, the effects of severe shoot trimming carried out at three different phenological stages were studied. In the second study, late severe shoot trimming was combined with two crop sizes and regulated by shoot thinning. The obtained results demonstrated that severe shoot trimming in earlier stages of berry development limited the accumulation of both sugars and anthocyanins as compared to the control treatment. However, when severe shoot trimming was performed at late veraison (at approximately 14 Brix), it decreased only the accumulation of sugars, without affecting the accumulation of anthocyanins. The results of the second study showed that the modification of crop size by shoot thinning significantly affected the measured yield parameters, whereas the effect on Brix and anthocyanins was seasonally dependent. It was concluded that among the studied techniques, severe shoot trimming at late veraison is the most effective way to reduce sugar content in the berry without affecting the accumulation of anthocyanins. MDPI 2022-12-17 /pmc/articles/PMC9785385/ /pubmed/36559683 http://dx.doi.org/10.3390/plants11243571 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bubola, Marijan
Persic, Martina
Rossi, Sara
Bestulić, Ena
Zdunić, Goran
Plavša, Tomislav
Radeka, Sanja
Severe Shoot Trimming and Crop Size as Tools to Modulate Cv. Merlot Berry Composition
title Severe Shoot Trimming and Crop Size as Tools to Modulate Cv. Merlot Berry Composition
title_full Severe Shoot Trimming and Crop Size as Tools to Modulate Cv. Merlot Berry Composition
title_fullStr Severe Shoot Trimming and Crop Size as Tools to Modulate Cv. Merlot Berry Composition
title_full_unstemmed Severe Shoot Trimming and Crop Size as Tools to Modulate Cv. Merlot Berry Composition
title_short Severe Shoot Trimming and Crop Size as Tools to Modulate Cv. Merlot Berry Composition
title_sort severe shoot trimming and crop size as tools to modulate cv. merlot berry composition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785385/
https://www.ncbi.nlm.nih.gov/pubmed/36559683
http://dx.doi.org/10.3390/plants11243571
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