Guerra, D. Wittmann, M.T.S. Schwarz, S.F. Souza, P.V.D. de Gonzatto, M.P. Weiler, R.L. Comparison between diploid and tetraploid citrus rootstocks: morphological characterization and growth evaluation Subjects--Topical Terms: PORTA ENXERTOMORFOLOGIA VEGETALFRUTA CÍTRICA