Poda de verano en manzanos Red Delicious
A study was conducted in the Upper Valley of Río Negro and Neuquén, Argentina (Mediterranean climate, latitude: 38° 55´S) with mature Red Delicious trees of 4 m height, trained to Palmette. Planting distances were 4 x 3 m, orientation East - West. Trees were summer pruned (December) to 2/3 of the ye...
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| Publicado en: | Revista de la Facultad de Ciencias Agrarias |
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| Autores principales: | , , , |
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| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=83 |
| Sumario: | A study was conducted in the Upper Valley of Río Negro and Neuquén, Argentina (Mediterranean climate, latitude: 38° 55´S) with mature Red Delicious trees of 4 m height, trained to Palmette. Planting distances were 4 x 3 m, orientation East - West. Trees were summer pruned (December) to 2/3 of the year growth or were left unpruned. At harvest time, light distribution (as Photosintheticaly Active Radiation, PAR) was determined at three heights in the canopy (1.0 m, 2.5 m and 3.8 m) on both the North and South side of the hedgerow. Fruiting spurs were collected in the same regions of the canopy, and fruit color characteristics, weight, soluble solids content, flesh firmness and Specific Leaf Weight (SLW) were determined. Summer pruning increased fruit red color and decreased pulp firmness. PAR affected 50 % of the fruit quality parameters measured and 63 % SLW. In addition, PAR was significatively affected by summer pruning only in the upper part of the South side and in the middle and inferior part of the North side of the hedgerow. Taking in account this concept the grower can save 50 % of the total summer pruning labour costs. |
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