Preliminary Diagnosis and Recommendation Integrated System Norms for Leaf Nutrient Diagnosis of Tempranillo Grapevine in the Rioja Appellation
Plant nutritional diagnosis requires specific reference levels for each grape variety to effectively reflect the nutritional status of the crop. A vine nutritional survey was undertaken in the Rioja A.O.C., northeastern Spain. The survey method was used to establish the preliminary norms in the application of the Diagnosis and Recommendation Integrated System (DRIS) to the nutritional diagnosis of leaf blade and petiole tissues of Vitis vinifera L., cv. Tempranillo, on Richter-110 rootstock. These DRIS norms were generated from data obtained during the course of 11 years (2000¿10) from 166 vineyards trained on both Gobelet and Vertical Shoot Position (VSP) pruned Guyot and Double Cordon Royat systems. The database obtained includes information from different altitudes, soil types, cultural practices, and climatic conditions within the Rioja appellation. The majority of the vineyards had no irrigation and soil was tilled mechanically. Nitrogen, phosphorus, potassium, calcium, and magnesium were analyzed in leaf blade and petiole dry tissues sampled at both flowering and veraison. Vineyards with phytosanitary damages or flowering problems were discarded. Ratios among nutrients were established for the blade and petiole at both flowering and veraison by comparing two subpopulations of high and low quality. Both subpopulations were selected from a limited production criteria by a Student¿s t-test mean comparison. Finally, DRIS norms for leaf blade and petiole at both flowering and veraison are proposed for the nutrition diagnosis of the cv. Tempranillo in the Rioja A.O.C.
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | artículo biblioteca |
| Published: |
Taylor & Francis
2013
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| Subjects: | References, Petiole analysis, Nutrition, Vines, Leaf blade analysis, Quality, |
| Online Access: | http://hdl.handle.net/10261/144111 http://dx.doi.org/10.13039/100007652 http://dx.doi.org/10.13039/501100000780 |
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| Summary: | Plant nutritional diagnosis requires specific reference levels for each grape variety to
effectively reflect the nutritional status of the crop. A vine nutritional survey was undertaken
in the Rioja A.O.C., northeastern Spain. The survey method was used to establish
the preliminary norms in the application of the Diagnosis and Recommendation
Integrated System (DRIS) to the nutritional diagnosis of leaf blade and petiole tissues
of Vitis vinifera L., cv. Tempranillo, on Richter-110 rootstock. These DRIS norms
were generated from data obtained during the course of 11 years (2000¿10) from
166 vineyards trained on both Gobelet and Vertical Shoot Position (VSP) pruned Guyot
and Double Cordon Royat systems. The database obtained includes information from
different altitudes, soil types, cultural practices, and climatic conditions within the
Rioja appellation. The majority of the vineyards had no irrigation and soil was tilled
mechanically. Nitrogen, phosphorus, potassium, calcium, and magnesium were analyzed
in leaf blade and petiole dry tissues sampled at both flowering and veraison.
Vineyards with phytosanitary damages or flowering problems were discarded. Ratios
among nutrients were established for the blade and petiole at both flowering and
veraison by comparing two subpopulations of high and low quality. Both subpopulations
were selected from a limited production criteria by a Student¿s t-test mean
comparison. Finally, DRIS norms for leaf blade and petiole at both flowering and
veraison are proposed for the nutrition diagnosis of the cv. Tempranillo in the Rioja
A.O.C. |
|---|