Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation
Background and Aims: Regulated deficit irrigation (RDI) and bunch thinning are two viticultural practices applied worldwide. There is limited knowledge, however, about their combined effects on carbohydrate dynamics and accumulation. We evaluated during year 3 and 4 of the experiment the effect of 4...
| Autores principales: | , , , |
|---|---|
| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2019
|
| Materias: | |
| Acceso en línea: | https://onlinelibrary.wiley.com/doi/full/10.1111/ajgw.12044 http://hdl.handle.net/20.500.12123/4645 https://doi.org/10.1111/ajgw.12044 |
| _version_ | 1855035360371802112 |
|---|---|
| author | Dayer, Silvina Prieto, Jorge Alejandro Galat Giorgi, Mirta Eugenia Perez Peña, Jorge Esteban |
| author_browse | Dayer, Silvina Galat Giorgi, Mirta Eugenia Perez Peña, Jorge Esteban Prieto, Jorge Alejandro |
| author_facet | Dayer, Silvina Prieto, Jorge Alejandro Galat Giorgi, Mirta Eugenia Perez Peña, Jorge Esteban |
| author_sort | Dayer, Silvina |
| collection | INTA Digital |
| description | Background and Aims: Regulated deficit irrigation (RDI) and bunch thinning are two viticultural practices applied worldwide. There is limited knowledge, however, about their combined effects on carbohydrate dynamics and accumulation. We evaluated during year 3 and 4 of the experiment the effect of 4 consecutive years of RDI and bunch thinning on carbohydrate status, vegetative and reproductive variables.
Methods and Results: From 2006/07 to 2009/10, we imposed four levels of water supply [100, 60, 38 and 25% of reference evapotranspiration (ETo)] and two crop loads (100 and 50% of the bunches). We compared shoot length, flowers per inflorescence and yield in 2009/10. We also measured pruning mass and the concentration of non‐structural carbohydrates in dormant wood in the winters of 2009 and 2010. Starch concentration in the trunk was reduced by severe water deficit (25 and 38% ETo) and improved by bunch thinning. Pruning mass, shoot length, flowers per inflorescence and yield were affected in vines with water applied at 25 and 38% of ETo.
Conclusions: Severe water stress and high crop load reduced trunk starch concentration with no interaction between both factors, whereas the concentration of total non‐structural carbohydrate was not affected. Vegetative growth and yield were reduced after 4 years of severe water stress. |
| format | info:ar-repo/semantics/artículo |
| id | INTA4645 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA46452019-03-19T11:25:55Z Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation Dayer, Silvina Prieto, Jorge Alejandro Galat Giorgi, Mirta Eugenia Perez Peña, Jorge Esteban Vid Variedades Carbohidratos Riego Grapevines Varieties Carbohydrates Irrigation Variedad Malbec Riego Deficitario Background and Aims: Regulated deficit irrigation (RDI) and bunch thinning are two viticultural practices applied worldwide. There is limited knowledge, however, about their combined effects on carbohydrate dynamics and accumulation. We evaluated during year 3 and 4 of the experiment the effect of 4 consecutive years of RDI and bunch thinning on carbohydrate status, vegetative and reproductive variables. Methods and Results: From 2006/07 to 2009/10, we imposed four levels of water supply [100, 60, 38 and 25% of reference evapotranspiration (ETo)] and two crop loads (100 and 50% of the bunches). We compared shoot length, flowers per inflorescence and yield in 2009/10. We also measured pruning mass and the concentration of non‐structural carbohydrates in dormant wood in the winters of 2009 and 2010. Starch concentration in the trunk was reduced by severe water deficit (25 and 38% ETo) and improved by bunch thinning. Pruning mass, shoot length, flowers per inflorescence and yield were affected in vines with water applied at 25 and 38% of ETo. Conclusions: Severe water stress and high crop load reduced trunk starch concentration with no interaction between both factors, whereas the concentration of total non‐structural carbohydrate was not affected. Vegetative growth and yield were reduced after 4 years of severe water stress. EEA Mendoza Fil: Dayer, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Prieto, Jorge Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Galat Giorgi, Mirta Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Perez Peña, Jorge Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina 2019-03-19T11:24:08Z 2019-03-19T11:24:08Z 2013-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://onlinelibrary.wiley.com/doi/full/10.1111/ajgw.12044 http://hdl.handle.net/20.500.12123/4645 1322-7130 1755-0238 https://doi.org/10.1111/ajgw.12044 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Australian Journal of Grape and Wine Research 19 (3) : 422-430. (October 2013) |
| spellingShingle | Vid Variedades Carbohidratos Riego Grapevines Varieties Carbohydrates Irrigation Variedad Malbec Riego Deficitario Dayer, Silvina Prieto, Jorge Alejandro Galat Giorgi, Mirta Eugenia Perez Peña, Jorge Esteban Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation |
| title | Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation |
| title_full | Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation |
| title_fullStr | Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation |
| title_full_unstemmed | Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation |
| title_short | Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation |
| title_sort | carbohydrate reserve status of malbec grapevines after several years of regulated deficit irrigation and crop load regulation |
| topic | Vid Variedades Carbohidratos Riego Grapevines Varieties Carbohydrates Irrigation Variedad Malbec Riego Deficitario |
| url | https://onlinelibrary.wiley.com/doi/full/10.1111/ajgw.12044 http://hdl.handle.net/20.500.12123/4645 https://doi.org/10.1111/ajgw.12044 |
| work_keys_str_mv | AT dayersilvina carbohydratereservestatusofmalbecgrapevinesafterseveralyearsofregulateddeficitirrigationandcroploadregulation AT prietojorgealejandro carbohydratereservestatusofmalbecgrapevinesafterseveralyearsofregulateddeficitirrigationandcroploadregulation AT galatgiorgimirtaeugenia carbohydratereservestatusofmalbecgrapevinesafterseveralyearsofregulateddeficitirrigationandcroploadregulation AT perezpenajorgeesteban carbohydratereservestatusofmalbecgrapevinesafterseveralyearsofregulateddeficitirrigationandcroploadregulation |