Zeist, A.R. Alberto, C.M. Tomazetti, T.C. Rossarolla, M.D. Giacobbo, C.L. Welter, L.J. Plastochron estimate in grapevine 'Marselan' and 'Tannat' cultivars Subjects--Topical Terms: UVAFRUTICULTURAFENOLOGIAZONEAMENTO AGRÍCOLA