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[Estimación de requerimientos de agua y valores Kc de uva Thompson Seedless cultivada en sistema parronal uv, usando el método de covarianza Eddy]
Crop evapotranspiration (ETc) is essential for irrigation scheduling. The amount of water consumed can be estimated by multiplying the reference evapotranspiration (ET0) by a crop coefficient (Kc); the value of Kc is usually obtained from FAO Paper nr 56. In table grapes (Vitis vinifera L.), Kc are obtained from experiments in vines trained on trellis systems; however in Chile, the most used is the overhead trellis system (parronal). Therefore, the objective was to determine water requirements and Kc values of a table grape orchard cv. Thompson Seedless trained on an overhead trellis system in Calle Larga, Aconcagua Valley, Chile, using the Eddy covariance method. During the 2008/2009 and 2009/2010 seasons, the instruments required for ET0 and ETc measurement were installed on a 4 m tower above the soil (2 m above vine canopy). The ET0 was estimated according to the FAO Penman-Monteith equation and ETc by the Eddy covariance method. The Kc was obtained by ratio between ETc and ET0. The maximum ETc was 7 mm d-1 and total water consumption was 810 mm. The season maximum Kc value of 1.2 was obtained near harvest during the first season, and 20 d before veraison in the second season. The Kc increased linearly with the percentage of intercepted solar radiation (IRS) by the vine canopy at noon, suggesting that an equation to convert the IRS to Kc is more useful than Kc tabulated according to phenology. The equation obtained in this experiment was Kc = 0.012 IRS – 0.1029, R2 = 0.85
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| Format: | Artículo biblioteca |
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Apr-Jun 2014
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| Subjects: | uva de mesa, coeficiente de cultivo, balance de energia, requerimientos de agua, agua del suelo, temperatura, fenologia, evapotranspiracion, |
| Online Access: | https://hdl.handle.net/20.500.14001/40730 |
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dig-inia-cl-20.500.14001-407302024-08-27T18:14:04Z [Estimación de requerimientos de agua y valores Kc de uva Thompson Seedless cultivada en sistema parronal uv, usando el método de covarianza Eddy] Estimation of water requirements and Kc values of 'Thompson Seedless' table grapes grown in the overhead trellis system, using the Eddy covariance method Villagra A., Paulina García, Víctor Ferreyra E., Raúl Aspillaga N., Cristina Zúñiga E., Carlos Ortega F., Samuel Selles Van S., Gabriel uva de mesa coeficiente de cultivo balance de energia requerimientos de agua agua del suelo temperatura fenologia evapotranspiracion Crop evapotranspiration (ETc) is essential for irrigation scheduling. The amount of water consumed can be estimated by multiplying the reference evapotranspiration (ET0) by a crop coefficient (Kc); the value of Kc is usually obtained from FAO Paper nr 56. In table grapes (Vitis vinifera L.), Kc are obtained from experiments in vines trained on trellis systems; however in Chile, the most used is the overhead trellis system (parronal). Therefore, the objective was to determine water requirements and Kc values of a table grape orchard cv. Thompson Seedless trained on an overhead trellis system in Calle Larga, Aconcagua Valley, Chile, using the Eddy covariance method. During the 2008/2009 and 2009/2010 seasons, the instruments required for ET0 and ETc measurement were installed on a 4 m tower above the soil (2 m above vine canopy). The ET0 was estimated according to the FAO Penman-Monteith equation and ETc by the Eddy covariance method. The Kc was obtained by ratio between ETc and ET0. The maximum ETc was 7 mm d-1 and total water consumption was 810 mm. The season maximum Kc value of 1.2 was obtained near harvest during the first season, and 20 d before veraison in the second season. The Kc increased linearly with the percentage of intercepted solar radiation (IRS) by the vine canopy at noon, suggesting that an equation to convert the IRS to Kc is more useful than Kc tabulated according to phenology. The equation obtained in this experiment was Kc = 0.012 IRS – 0.1029, R2 = 0.85 2020-12-29T03:28:08Z 2020-12-29T03:28:08Z Apr-Jun 2014 Artículo https://hdl.handle.net/20.500.14001/40730 Chilean Journal of Agricultural Research v. 74(2) p. 213-218 EL-32 application/pdf |
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uva de mesa coeficiente de cultivo balance de energia requerimientos de agua agua del suelo temperatura fenologia evapotranspiracion uva de mesa coeficiente de cultivo balance de energia requerimientos de agua agua del suelo temperatura fenologia evapotranspiracion |
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uva de mesa coeficiente de cultivo balance de energia requerimientos de agua agua del suelo temperatura fenologia evapotranspiracion uva de mesa coeficiente de cultivo balance de energia requerimientos de agua agua del suelo temperatura fenologia evapotranspiracion Villagra A., Paulina García, Víctor Ferreyra E., Raúl Aspillaga N., Cristina Zúñiga E., Carlos Ortega F., Samuel Selles Van S., Gabriel [Estimación de requerimientos de agua y valores Kc de uva Thompson Seedless cultivada en sistema parronal uv, usando el método de covarianza Eddy] |
| description |
Crop evapotranspiration (ETc) is essential for irrigation scheduling. The amount of water consumed can be estimated by multiplying the reference evapotranspiration (ET0) by a crop coefficient (Kc); the value of Kc is usually obtained from FAO Paper nr 56. In table grapes (Vitis vinifera L.), Kc are obtained from experiments in vines trained on trellis systems; however in Chile, the most used is the overhead trellis system (parronal). Therefore, the objective was to determine water requirements and Kc values of a table grape orchard cv. Thompson Seedless trained on an overhead trellis system in Calle Larga, Aconcagua Valley, Chile, using the Eddy covariance method. During the 2008/2009 and 2009/2010 seasons, the instruments required for ET0 and ETc measurement were installed on a 4 m tower above the soil (2 m above vine canopy). The ET0 was estimated according to the FAO Penman-Monteith equation and ETc by the Eddy covariance method. The Kc was obtained by ratio between ETc and ET0. The maximum ETc was 7 mm d-1 and total water consumption was 810 mm. The season maximum Kc value of 1.2 was obtained near harvest during the first season, and 20 d before veraison in the second season. The Kc increased linearly with the percentage of intercepted solar radiation (IRS) by the vine canopy at noon, suggesting that an equation to convert the IRS to Kc is more useful than Kc tabulated according to phenology. The equation obtained in this experiment was Kc = 0.012 IRS – 0.1029, R2 = 0.85 |
| format |
Artículo |
| topic_facet |
uva de mesa coeficiente de cultivo balance de energia requerimientos de agua agua del suelo temperatura fenologia evapotranspiracion |
| author |
Villagra A., Paulina García, Víctor Ferreyra E., Raúl Aspillaga N., Cristina Zúñiga E., Carlos Ortega F., Samuel Selles Van S., Gabriel |
| author_facet |
Villagra A., Paulina García, Víctor Ferreyra E., Raúl Aspillaga N., Cristina Zúñiga E., Carlos Ortega F., Samuel Selles Van S., Gabriel |
| author_sort |
Villagra A., Paulina |
| title |
[Estimación de requerimientos de agua y valores Kc de uva Thompson Seedless cultivada en sistema parronal uv, usando el método de covarianza Eddy] |
| title_short |
[Estimación de requerimientos de agua y valores Kc de uva Thompson Seedless cultivada en sistema parronal uv, usando el método de covarianza Eddy] |
| title_full |
[Estimación de requerimientos de agua y valores Kc de uva Thompson Seedless cultivada en sistema parronal uv, usando el método de covarianza Eddy] |
| title_fullStr |
[Estimación de requerimientos de agua y valores Kc de uva Thompson Seedless cultivada en sistema parronal uv, usando el método de covarianza Eddy] |
| title_full_unstemmed |
[Estimación de requerimientos de agua y valores Kc de uva Thompson Seedless cultivada en sistema parronal uv, usando el método de covarianza Eddy] |
| title_sort |
[estimación de requerimientos de agua y valores kc de uva thompson seedless cultivada en sistema parronal uv, usando el método de covarianza eddy] |
| publishDate |
Apr-Jun 2014 |
| url |
https://hdl.handle.net/20.500.14001/40730 |
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