Zoning analysis determine homogeneous areas principally from the point of view of the medium, giving as a result a map which cartographic units synthesize the relations between the edaphic factors; morphological factors of the soil and climatic factors. The combination of these types of parameters allows to obtain maps of suitability of the optimum areas for the crop of the vineyard. At present it has been delimited and characterized eight grape areas belonging to the D.O. Jumilla. The chosen plots has been: Varahonda, Cañada del Judío, Cañada de Albatana, El Carche, Rubializas, Agüeros, Cortijo del Agrio and Casa Vistalegre.
The determined parameters are: Phenological parameters: Dates of sprouting, flowering, veraison, and harvest. Chemical parameters during maturation: total phenolic compounds, anthocyanins to pH 1 (extractable anthoc.) and anthocyanins to pH 3 (Total anthoc.), seed ripeness (MP) and index of cellular ripeness (IMC).
As for the determination of chromatic parameters and of extractability, in the plot of Cortijo del agrio the biggest quantity of anthocyanins has been obtained on having finished the period of ripening, on the other hand the plot of Cañada del Judio is the one that has obtained the highest values of extractable polyphenols. In our study, for the IMC lower value has been obtained for the plot located in Cañada del Judio and the highest value for the plot of Cortijo del agrio. As for seed ripeness Rubializas and Cortijo del agrio are the plots that obtained the lowest values.
Authors: Rosario VILA LÓPEZ, Pascual ROMERO AZORÍN, José Ignacio FERNÁNDEZ FERNÁNDEZ, Adrián MARTÍNEZ CUTILLAS, Rocío Gil MUÑOZ
Viticultura Department, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), c/Mayor, s/n, 31050, La Alberca, Spain
Keywords: zoning, monastrell, chromatic parameters