Effects of leaf removal and cluster thinning on yield and quality of grapes (Vitis vinifera L., Riesling × Silvaner) in Corrales, Boyaca (Colombia)
The vineyards that are located in the Colombian cool tropical zone of Corrales (Boyaca department) offer grapes for the production of quality wines; to improve the crop we must know the adequate balance between the quantity of clusters and the leaf area of the plants. In order to determine the effect of leaf removal and cluster thinning on yield and quality of the clonal selection Riesling à Silvaner wine grape, it was used a completely randomized bifactorial design of 2x3. The first factor was removal of leaves (without defoliation and 60% defoliation) and the second one was cluster thinning (maintaining 66% or 33% of clusters per plant). Plants with 66% clusters and without leaf removal exhibited the highest total soluble solids content and yield of grapes, in fresh mass of clusters and fresh and dry mass of grapes. Plants without cluster thinning, but with removal of leaves, produced the lowest pH levels and total titratable acidity in the grapes. The technical maturity index was significantly higher in plants without leaf thinning; but was not affected by removed clusters. Thinning clusters is an alternative to improve production and the quality of wine grapes.
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
2011
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oai:www.revistas.unal.edu.co:article-145862019-05-09T15:41:57Z Effects of leaf removal and cluster thinning on yield and quality of grapes (Vitis vinifera L., Riesling × Silvaner) in Corrales, Boyaca (Colombia) Efecto del deshoje y del raleo de racimos sobre el rendimiento y la calidad de las bayas de vid (Vitis vinifera L., Riesling × Silvaner) en Corrales, Boyacá (Colombia) Balaguera López, Helber Enrique Almanza Merchán, Pedro José Fischer, Gerhard source/sink ratio total soluble solids total titratable acidity pH crop productivity relación fuente/vertedero sólidos solubles totales acidez total titulable pH productividad agrícola The vineyards that are located in the Colombian cool tropical zone of Corrales (Boyaca department) offer grapes for the production of quality wines; to improve the crop we must know the adequate balance between the quantity of clusters and the leaf area of the plants. In order to determine the effect of leaf removal and cluster thinning on yield and quality of the clonal selection Riesling à Silvaner wine grape, it was used a completely randomized bifactorial design of 2x3. The first factor was removal of leaves (without defoliation and 60% defoliation) and the second one was cluster thinning (maintaining 66% or 33% of clusters per plant). Plants with 66% clusters and without leaf removal exhibited the highest total soluble solids content and yield of grapes, in fresh mass of clusters and fresh and dry mass of grapes. Plants without cluster thinning, but with removal of leaves, produced the lowest pH levels and total titratable acidity in the grapes. The technical maturity index was significantly higher in plants without leaf thinning; but was not affected by removed clusters. Thinning clusters is an alternative to improve production and the quality of wine grapes. Los viñedos ubicados en la zona tropical fría de Corrales (departamento de Boyacá) ofrecen frutos para elaborar vinos de calidad; para mejorar el rendimiento se debe conocer el equilibrio adecuado entre la cantidad de racimos con relación al área foliar de la planta. Para determinar el efecto de la eliminación parcial de hojas y racimos sobre la producción y calidad de uvas de la selección clonal Riesling à Silvaner, se empleó un diseño completamente al azar bifactorial de 2x3. El primer factor fue la defoliación (sin deshoje y con deshoje del 60%). El segundo factor fue el raleo de racimos (dejando 66% ó 33% de racimos por planta). Con 66% de racimos por planta y sin deshoje se obtuvo la mayor cantidad de sólidos solubles totales, así como el mejor rendimiento de las uvas, en masa fresca de racimos y en masas fresca y seca de frutos. Plantas sin raleo de racimos, pero con deshoje, produjeron los menores valores de pH y acidez total titulable de las uvas. El índice de madurez técnico fue significativamente mayor en vides sometidas a defoliación parcial, mientras el raleo de racimos no lo afectó. El raleo de racimos es una alternativa para mejorar la producción y calidad de la uva para vinificación. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias 2011-01-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unal.edu.co/index.php/agrocol/article/view/14586 Agronomía Colombiana; Vol. 29 No. 1 (2011); 35-42 Agronomía Colombiana; Vol. 29 Núm. 1 (2011); 35-42 Agronomía Colombiana; v. 29 n. 1 (2011); 35-42 2357-3732 0120-9965 spa https://revistas.unal.edu.co/index.php/agrocol/article/view/14586/28933 https://revistas.unal.edu.co/index.php/agrocol/article/view/14586/37468 Copyright (c) 2011 Agronomía Colombiana https://creativecommons.org/licenses/by-nc-sa/4.0 |
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Balaguera López, Helber Enrique Almanza Merchán, Pedro José Fischer, Gerhard |
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Balaguera López, Helber Enrique Almanza Merchán, Pedro José Fischer, Gerhard Effects of leaf removal and cluster thinning on yield and quality of grapes (Vitis vinifera L., Riesling × Silvaner) in Corrales, Boyaca (Colombia) |
| author_facet |
Balaguera López, Helber Enrique Almanza Merchán, Pedro José Fischer, Gerhard |
| author_sort |
Balaguera López, Helber Enrique |
| title |
Effects of leaf removal and cluster thinning on yield and quality of grapes (Vitis vinifera L., Riesling × Silvaner) in Corrales, Boyaca (Colombia) |
| title_short |
Effects of leaf removal and cluster thinning on yield and quality of grapes (Vitis vinifera L., Riesling × Silvaner) in Corrales, Boyaca (Colombia) |
| title_full |
Effects of leaf removal and cluster thinning on yield and quality of grapes (Vitis vinifera L., Riesling × Silvaner) in Corrales, Boyaca (Colombia) |
| title_fullStr |
Effects of leaf removal and cluster thinning on yield and quality of grapes (Vitis vinifera L., Riesling × Silvaner) in Corrales, Boyaca (Colombia) |
| title_full_unstemmed |
Effects of leaf removal and cluster thinning on yield and quality of grapes (Vitis vinifera L., Riesling × Silvaner) in Corrales, Boyaca (Colombia) |
| title_sort |
effects of leaf removal and cluster thinning on yield and quality of grapes (vitis vinifera l., riesling × silvaner) in corrales, boyaca (colombia) |
| description |
The vineyards that are located in the Colombian cool tropical zone of Corrales (Boyaca department) offer grapes for the production of quality wines; to improve the crop we must know the adequate balance between the quantity of clusters and the leaf area of the plants. In order to determine the effect of leaf removal and cluster thinning on yield and quality of the clonal selection Riesling à Silvaner wine grape, it was used a completely randomized bifactorial design of 2x3. The first factor was removal of leaves (without defoliation and 60% defoliation) and the second one was cluster thinning (maintaining 66% or 33% of clusters per plant). Plants with 66% clusters and without leaf removal exhibited the highest total soluble solids content and yield of grapes, in fresh mass of clusters and fresh and dry mass of grapes. Plants without cluster thinning, but with removal of leaves, produced the lowest pH levels and total titratable acidity in the grapes. The technical maturity index was significantly higher in plants without leaf thinning; but was not affected by removed clusters. Thinning clusters is an alternative to improve production and the quality of wine grapes. |
| publisher |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias |
| publishDate |
2011 |
| url |
https://revistas.unal.edu.co/index.php/agrocol/article/view/14586 |
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