THIS THESIS DCOCTORAL A deals with a study a considerable amount of research conducted in the DEPT. For vegetable production in the U.P.V. ON DIFFERENT ASPECTS OF AGRICULTURAL CROP Cyperus esculentus var. Sativus (plug). THERE have been carried out a clonal selection, WHETHER THE MATERIAL WITH grown in L'HORTA NORD DE VALENCIA AS MATERIAL WITH outsiders has typified THIS IS FROM SOME of morphological and agronomic. Studies have been conducted on morphological and physiological plants (plant height, number of buds per plant, ISSUE OF inflorescence EVOLUTION OF lodging) and on the tubers (weight, shape (LONGITUD0ANCHURA RELATIONSHIP), number of nodes). Other studies have covered aspects of production (yield, FOLIAR MASS PRODUCTION, PRODUCED NUMRO tubers per plant) Chemical and composition of the tubers (starch, fat, sugar, protein, fiber, ash). ALSO, have been analyzed the organoleptic properties of Horchata PRODUCED WITH THE TUBERS OF DIFFERENT CLONES, AND THE CHEMICAL COMPOSITION OF THE SAME. WITH ALL the parameters in question and having to get results from three campaigns, his heritage has been analyzed and discriminant analysis have been raised. Thus it has been possible to define groups of clones with similar behavior (four cultivars, two derived from two clones each) and its main features, lay a sound basis APPROACH FOR THE SELECTION OF FUTURE STUDIES AND IMPROVEMENT OF THE MATERIAL Plant C. Esculentus, cultivated likely to be.