Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks by Chañag-Miramag, Harold Andrés, Viveros-Rojas, Jesús, Álvarez-Ordoñez, Sandra, Criollo-Escobar, Hernando, Lagos-Mora, Luz E.