Publicação
Impact of vine age on grape composition: a review
| Resumo: | Vitis vinifera L. is a perennial cultivation plant capable of showing remarkable longevity. Some of its characteristics evolve as they get older. Thus, vine age and its relation with grape and wine quality are subjects of recurring interest. This topic remains discussed and the understanding of the mechanisms through which vines of different ages would produce wines of different quality is still poorly studied. This bibliographic work aims to evaluate previous studies on the effect of vine age on some of the main grape descriptors. Vine age impacts reproductive performance: older vines generate higher yields, but all vines, regardless of age, are affected by seasonal variability as expected. Wine quality is mainly influenced by the characteristics of the grapevine used for production. Vitis genus contains some plasticity inside, that is the amount by which the individual expression of a genotype can be regulated by the environment where it is immersed. This research analyzed key metabolites to elucidate qualitative traits that contribute to the dynamics of maturation, describing biosynthesis, evolution, the main factors that influence grape maturation, and their relationship to vine age. Analyzing the various published works on the topic of vine age, it is possible to notice quite contradictory results. This is due to the difficulties in obtaining appropriate plant material and organizing field tests with equivalent conditions based on vine age. Furthermore, it may be difficult to distinguish vine age-related impacts related to vine age due to seasonal and environmental variability. |
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| Autores principais: | Di Battista, Marianna |
| Assunto: | old vines grape composition wine quality vinhas velhas composição da uva qualidade do vinho |
| Ano: | 2022 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| Resumo: | Vitis vinifera L. is a perennial cultivation plant capable of showing remarkable longevity. Some of its characteristics evolve as they get older. Thus, vine age and its relation with grape and wine quality are subjects of recurring interest. This topic remains discussed and the understanding of the mechanisms through which vines of different ages would produce wines of different quality is still poorly studied. This bibliographic work aims to evaluate previous studies on the effect of vine age on some of the main grape descriptors. Vine age impacts reproductive performance: older vines generate higher yields, but all vines, regardless of age, are affected by seasonal variability as expected. Wine quality is mainly influenced by the characteristics of the grapevine used for production. Vitis genus contains some plasticity inside, that is the amount by which the individual expression of a genotype can be regulated by the environment where it is immersed. This research analyzed key metabolites to elucidate qualitative traits that contribute to the dynamics of maturation, describing biosynthesis, evolution, the main factors that influence grape maturation, and their relationship to vine age. Analyzing the various published works on the topic of vine age, it is possible to notice quite contradictory results. This is due to the difficulties in obtaining appropriate plant material and organizing field tests with equivalent conditions based on vine age. Furthermore, it may be difficult to distinguish vine age-related impacts related to vine age due to seasonal and environmental variability. |
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