TY - SER AU - Giampani,J.S. AU - Tazima,Z.H. AU - Baba,V.Y. AU - Yada,I.F.U. AU - Leite Júnior,R.P. TI - Citrus tristeza disease severity and agronomic performance of Pera sweet orange cultivars and selections in the North and Northwest regions of the State of Paraná, Brazil KW - LARANJA PERA KW - DOENÇA DE PLANTA KW - TRISTEZA CÍTRICA KW - CONDIÇÃO AMBIENTAL KW - COMPORTAMENTO DE VARIEDADE UR - http://www.scielo.br/pdf/rbf/v38n3/0100-2945-rbf-38-3-e-073.pdf ER -