Response of 'Muscat of Alexandria' wine grapes to irrigation in eastern Spain
An experiment was carried out during 2012 in a mature white grape 'Muscat of Alexandria'/161-46B, drip-irrigated vineyard conducted in a vertically positioned shoot system in Valencia, Spain. Four different irrigation strategies were studied: Sustained Deficit irrigated (SDI) vines irrigated at 50%...
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| Format: | Objeto de conferencia |
| Language: | Inglés |
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ISHS
2020
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11939/6706 https://www.actahort.org/books/1157/1157_48.htm |
| _version_ | 1855492135712718848 |
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| author | Pérez, Diego Castel, Juan R. Intrigliolo, Diego S. Castel, Juan R. |
| author2 | Pinto, Manuel |
| author_browse | Castel, Juan R. Intrigliolo, Diego S. Pinto, Manuel Pérez, Diego |
| author_facet | Pinto, Manuel Pérez, Diego Castel, Juan R. Intrigliolo, Diego S. Castel, Juan R. |
| author_sort | Pérez, Diego |
| collection | ReDivia |
| description | An experiment was carried out during 2012 in a mature white grape 'Muscat of Alexandria'/161-46B, drip-irrigated vineyard conducted in a vertically positioned shoot system in Valencia, Spain. Four different irrigation strategies were studied: Sustained Deficit irrigated (SDI) vines irrigated at 50% of estimated crop evapotranspiration (ETc) during the whole season were compared with vines irrigated season long at 100% ETc (Control). Irrigation to the Control commenced when midday stem water potential (Ψstem) values reached -0.65 MPa. In addition, a spring water shortage strategy (ED) was applied by withholding irrigation until Ψstem reached -1.0 MPa. After that, 100% ETc was applied. Finally, an LD treatment was irrigated as per the Control up to veraison, and thereafter water application was reduced to approximately 25% ETc until harvest. The results show that no differences in yield among treatments occurred, except in the ED treatment where there was a significant reduction of about 30% with respect to the rest of irrigation regimes. This yield reduction was due to the lower cluster weight (-24%) as a consequence of smaller berry size (-14%) and also to a lower berry number per cluster (-11%). Irrigation at full ETc before veraison (as in the Control and LD) increased the leaf area, mainly due to the higher growth of secondary shoots. There were also differences in berry composition among irrigation strategies. The ED irrigation strategy was more effective than LD in reducing berry growth leading to more concentrated berries in terms of soluble solids content, while the SDI impaired berry sugar accumulation due to the detrimental effects of water stress. There was also a tendency to higher titratable acidity and higher malic acid concentration as the irrigation amount increased. Thus, in our conditions of scarce water resources, applying moderate water deficits during the entire season, as in the SDI treatment, was the most convenient irrigation strategy. |
| format | Objeto de conferencia |
| id | ReDivia6706 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | ISHS |
| publisherStr | ISHS |
| record_format | dspace |
| spelling | ReDivia67062025-04-25T14:51:04Z Response of 'Muscat of Alexandria' wine grapes to irrigation in eastern Spain Pérez, Diego Castel, Juan R. Intrigliolo, Diego S. Castel, Juan R. Pinto, Manuel Plant water status Stem water potential Grape composition F06 Irrigation Vitis vinifera An experiment was carried out during 2012 in a mature white grape 'Muscat of Alexandria'/161-46B, drip-irrigated vineyard conducted in a vertically positioned shoot system in Valencia, Spain. Four different irrigation strategies were studied: Sustained Deficit irrigated (SDI) vines irrigated at 50% of estimated crop evapotranspiration (ETc) during the whole season were compared with vines irrigated season long at 100% ETc (Control). Irrigation to the Control commenced when midday stem water potential (Ψstem) values reached -0.65 MPa. In addition, a spring water shortage strategy (ED) was applied by withholding irrigation until Ψstem reached -1.0 MPa. After that, 100% ETc was applied. Finally, an LD treatment was irrigated as per the Control up to veraison, and thereafter water application was reduced to approximately 25% ETc until harvest. The results show that no differences in yield among treatments occurred, except in the ED treatment where there was a significant reduction of about 30% with respect to the rest of irrigation regimes. This yield reduction was due to the lower cluster weight (-24%) as a consequence of smaller berry size (-14%) and also to a lower berry number per cluster (-11%). Irrigation at full ETc before veraison (as in the Control and LD) increased the leaf area, mainly due to the higher growth of secondary shoots. There were also differences in berry composition among irrigation strategies. The ED irrigation strategy was more effective than LD in reducing berry growth leading to more concentrated berries in terms of soluble solids content, while the SDI impaired berry sugar accumulation due to the detrimental effects of water stress. There was also a tendency to higher titratable acidity and higher malic acid concentration as the irrigation amount increased. Thus, in our conditions of scarce water resources, applying moderate water deficits during the entire season, as in the SDI treatment, was the most convenient irrigation strategy. 2020-10-28T11:03:35Z 2020-10-28T11:03:35Z 2017 conferenceObject Pérez, D., Castel, J., Intrigliolo, D. S., & Castel, J. R. (2013, April). Response of'Muscat of Alexandria'wine grapes to irrigation in eastern Spain. In: Pinto, M. IX International Symposium on Grapevine Physiology and Biotechnology, 1157 (pp. 343-350). 0567-7572 (print) 2406-6168 (electronic) http://hdl.handle.net/20.500.11939/6706 10.17660/ActaHortic.2017.1157.48 https://www.actahort.org/books/1157/1157_48.htm en IX International Symposium on Grapevine Physiology and Biotechnology La Serena (Chile) Atribución-NoComercial-SinDerivadas 3.0 España Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ closedAccess ISHS electronico |
| spellingShingle | Plant water status Stem water potential Grape composition F06 Irrigation Vitis vinifera Pérez, Diego Castel, Juan R. Intrigliolo, Diego S. Castel, Juan R. Response of 'Muscat of Alexandria' wine grapes to irrigation in eastern Spain |
| title | Response of 'Muscat of Alexandria' wine grapes to irrigation in eastern Spain |
| title_full | Response of 'Muscat of Alexandria' wine grapes to irrigation in eastern Spain |
| title_fullStr | Response of 'Muscat of Alexandria' wine grapes to irrigation in eastern Spain |
| title_full_unstemmed | Response of 'Muscat of Alexandria' wine grapes to irrigation in eastern Spain |
| title_short | Response of 'Muscat of Alexandria' wine grapes to irrigation in eastern Spain |
| title_sort | response of muscat of alexandria wine grapes to irrigation in eastern spain |
| topic | Plant water status Stem water potential Grape composition F06 Irrigation Vitis vinifera |
| url | http://hdl.handle.net/20.500.11939/6706 https://www.actahort.org/books/1157/1157_48.htm |
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