Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain
In the old-world viticulture autochthonous varieties are an important inheritance because they can provide wines with authenticity and distinction. Cultivar Mandó is an almost extinguished variety from the south-east of Spain with very large and tight clusters. The aim of this study was to assess th...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | conferenceObject |
| Language: | Inglés |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/20.500.11939/5291 |
| _version_ | 1855032255473254400 |
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| author | Gomez, Ivan Revert, Javier Esteve, María D. Climent, María D. Martinez, A. Jimenez, J. Intrigliolo, Diego S. |
| author2 | Bravdo, B. Medrano, H. |
| author_browse | Bravdo, B. Medrano, H. Climent, María D. Esteve, María D. Gomez, Ivan Intrigliolo, Diego S. Jimenez, J. Martinez, A. Revert, Javier |
| author_facet | Bravdo, B. Medrano, H. Gomez, Ivan Revert, Javier Esteve, María D. Climent, María D. Martinez, A. Jimenez, J. Intrigliolo, Diego S. |
| author_sort | Gomez, Ivan |
| collection | ReDivia |
| description | In the old-world viticulture autochthonous varieties are an important inheritance because they can provide wines with authenticity and distinction. Cultivar Mandó is an almost extinguished variety from the south-east of Spain with very large and tight clusters. The aim of this study was to assess the usefulness of early defolia¬tion as a possible tool to reduce cluster compactness, improving fruit composition. With this in mind, an experiment was conducted with ‘Mandó’ in deficit irrigated vines trained with a divided Lyre system. Control (C), non-defoliated vines, were compared with defoliation carried out either just before anthesis (phenological phase H, (Def-H)), at flowering (phenological phase I, (Def-I)) or at fruit set (phenological stage J, (Def-J)). In all the defoliation treatments, leaves from the first eight nodes, including laterals, were removed. The experimental design was a complete randomized block with three replicates per treatment and 24 experimental vines per experimental plot. As an average for all defoliation treatments, berry number per cluster, berry weight and yield were reduced by 44%, 16% and 45%,in Def-H, Def-I and Def-J respectively. Defoliation increased berry soluble solids concentration only in the Def-H treatment. On the other hand, berry acidity was only decreased in the Def-H treatment. In the ED and LD defoliation treatments, leaf pulling improved berry quality determined by a berry tasting panel. In agreement, berries from the ED and LD also had higher total phenolics, anthocyanins and tannin concentration. Results obtained were judged positively by the winery owners and defoliation, particularly at stage J, will now be more widely conducted in the vineyards planted with the ‘Mandó’ cultivar. The research is indeed an example of a successful transfer of a research technique under commercial situations. |
| format | conferenceObject |
| id | ReDivia5291 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia52912025-04-25T14:51:28Z Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain Acta Horticulturae Gomez, Ivan Revert, Javier Esteve, María D. Climent, María D. Martinez, A. Jimenez, J. Intrigliolo, Diego S. Bravdo, B. Medrano, H. In the old-world viticulture autochthonous varieties are an important inheritance because they can provide wines with authenticity and distinction. Cultivar Mandó is an almost extinguished variety from the south-east of Spain with very large and tight clusters. The aim of this study was to assess the usefulness of early defolia¬tion as a possible tool to reduce cluster compactness, improving fruit composition. With this in mind, an experiment was conducted with ‘Mandó’ in deficit irrigated vines trained with a divided Lyre system. Control (C), non-defoliated vines, were compared with defoliation carried out either just before anthesis (phenological phase H, (Def-H)), at flowering (phenological phase I, (Def-I)) or at fruit set (phenological stage J, (Def-J)). In all the defoliation treatments, leaves from the first eight nodes, including laterals, were removed. The experimental design was a complete randomized block with three replicates per treatment and 24 experimental vines per experimental plot. As an average for all defoliation treatments, berry number per cluster, berry weight and yield were reduced by 44%, 16% and 45%,in Def-H, Def-I and Def-J respectively. Defoliation increased berry soluble solids concentration only in the Def-H treatment. On the other hand, berry acidity was only decreased in the Def-H treatment. In the ED and LD defoliation treatments, leaf pulling improved berry quality determined by a berry tasting panel. In agreement, berries from the ED and LD also had higher total phenolics, anthocyanins and tannin concentration. Results obtained were judged positively by the winery owners and defoliation, particularly at stage J, will now be more widely conducted in the vineyards planted with the ‘Mandó’ cultivar. The research is indeed an example of a successful transfer of a research technique under commercial situations. 2017-06-01T10:12:04Z 2017-06-01T10:12:04Z 2012 2012 conferenceObject Gomez, I., Revert, J., Esteve, M. D., Climent, M. D., Martinez, A., Jimenez, J., Intrigliolo, D.S. (2012). Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain. Xxviii International Horticultural Congress on Science and Horticulture for People (Ihc2010): International Symposium on the Effect of Climate Change on Production and Quality of Grapevines and their Products, 931, 365-370. 0567-7572 http://hdl.handle.net/20.500.11939/5291 10.17660/ActaHortic.2012.931.42 en openAccess Impreso |
| spellingShingle | Gomez, Ivan Revert, Javier Esteve, María D. Climent, María D. Martinez, A. Jimenez, J. Intrigliolo, Diego S. Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain |
| title | Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain |
| title_full | Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain |
| title_fullStr | Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain |
| title_full_unstemmed | Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain |
| title_short | Effects of Early Defoliation in Grape Yield and Quality in 'Mando', an Autochthon Cultivar of South-East Spain |
| title_sort | effects of early defoliation in grape yield and quality in mando an autochthon cultivar of south east spain |
| url | http://hdl.handle.net/20.500.11939/5291 |
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