Show simple item record

dc.creatorSantesteban García, Gonzagaes_ES
dc.creatorMiranda Jiménez, Carloses_ES
dc.creatorUrrestarazu Vidart, Jorgees_ES
dc.creatorLoidi Erviti, Maitees_ES
dc.creatorRoyo Díaz, José Bernardoes_ES
dc.description.abstractAim: An advance in grapevine phenological stages (including ripening) is occurring worldwide due to global warming and, in the hottest seasons, already results in a lack of synchrony between sugar and phenolic ripeness, leading to unbalanced wines. In order to cope with this fact, a general effort is being made by researchers and growers aiming at delaying ripening through cultural practices, particularly under warm growing conditions, where these effects are more deleterious. The aim of this work is to evaluate to which extent severe trimming and enhanced competition of laterals can delay ripening in Tempranillo vineyards under semiarid conditions. Methods and results: The experiment took place during two consecutive seasons in Traibuenas (Navarra, Spain) in a cv. ‘Tempranillo’ vineyard trained to a vertical shoot positioned (VSP) spur-pruned bilateral cordon. Severe mechanical pruning was performed ca. 3 weeks after fruit-set in order to reduce leaf-to-fruit ratio, and in the trimmed plants, three irrigation doses were applied until harvest aiming at enhancing lateral growth, hypothesized to compete with ripening. All measurements were performed in six 10-vine replicates per treatment. Trimming significantly reduced leaf area and yield, resulting in higher water availability in trimmed plants. The whole ripening process was delayed by trimming: mid-veraison was delayed by about 5 days, and the delay in sugar accumulation and acid degradation was longer, differences being more marked in malic than in tartaric acid concentration. The use of increased irrigation levels compensated the losses in yield caused by trimming, enhanced laterals’ growth and implied an additional delay in ripening. Conclusion: trimming and increased irrigation had an additive effect in terms of delaying ripening, and they can be used jointly when that delay is needed. Significance and impact of the study: this study proves the potentiality of the joint use of trimming and increased irrigation to delay ripening, although it is necessary to analyze the implications the obtained delay has on other quality aspects. The lower anthocyanin and phenolic values observed in trimmed vines were not solely due to delayed ripening, as lower values were observed even when data were compared for a given total soluble solid content.en
dc.description.sponsorshipThis work has been performed as part of VINACID Research Project, funded by Bodegas Ochoa, CDTI and the Government of Navarra.en
dc.publisherUniversité de Bordeauxfr
dc.relation.ispartofOeno One, 2017, 51, 2, 191-203en
dc.rights© Université de Bordeaux - 191 - (Bordeaux, France). Creative Commons Attribution 4.0 International (CC BY 4.0)en
dc.subjectDelayed ripeningen
dc.subjectTempranillo vineyardsen
dc.subjectSevere trimmingen
dc.titleSevere trimming and enhanced competition of laterals as a tool to delay ripening in Tempranillo vineyards under semiarid conditionsen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Producción Agrariaes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Nekazaritza Ekoizpena Sailaeu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.type.versionVersión publicada / Argitaratu den bertsioaes
dc.contributor.funderGobierno de Navarra / Nafarroako Gobernuaes

Files in this item


This item appears in the following Collection(s)

Show simple item record

© Université de Bordeaux - 191 - (Bordeaux, France). Creative Commons Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as © Université de Bordeaux - 191 - (Bordeaux, France). Creative Commons Attribution 4.0 International (CC BY 4.0)