TY - JOUR T1 - Resistance levels to two strains of Potato virus Y (PVY) in transgenic potatoes cv. Achat JO - Horticultura Brasileira A1 - Dusi, André N. A1 - Carvalho, César A1 - Torres, Antônio Carlos A1 - Ávila, Antonio Carlos de SN - 0102-0536 UL - 10.1590/S0102-05362001000300012 VL - 19 Y1 - 2001 PB - Brasil ER -