Of 46 graft carrier influence in citrics on ripe precocity or retardation from Frost Valencia Citrus sinensis (L) Osbeck was studied looking for to guaranter a fruit constant supply toward market. Graft carrier influence was tested in orange blosson, fruiting ripeness season. Stock influence to induce early intermediate or later blossoms was observed, related with period and intensity so them same ocurr. Stock influence on solubles solids content, juici volume, ripeness index, ripe fruit, mantenence on tree also was found . Early of later yields are feasible to obtain using trifoliado x Ruby Or (1437) and Garcia Valencia stock markedly, or which highly significant ripeness gains were found with Frost Valencia Orange respectively.