Potato virus Y (PVY) is considered one of the main causes of potato degeneration in Brazil. To determine the field resistance of potato genotypes to PVY, in Rio Grande do Sul, Brazil, fifteen clones and cultivars were tested during two consecutive spring planting seasons. PVY detection was done by serological tests (DAS-ELISA). Cultivars and lines performed as follows: Cristal and 2CRI-1149-1-79, resistant; Astrid, Baraka, Baronesa, Catucha, Macaca, Monte Bonito, Santo Amor, Trapeira and 2AC-917-7-80, intermediate resistance; Bintje, Cerrito Alegre and Monalisa, susceptible; and Achat, extremely susceptible.
Solanum tuberosum L.; Potato virus Y,; PVY
