Evaluation of Agronomic Traits and Severity of Foliar Disease of Three Commercial Hybrids and Five Advanced Triple Hybrids of Hard Yellow Maize מאת Cabascango-Paucar, Ruth Angélica, Valverde-Pérez, William Mauricio, Bolaños-Carriel, Carlos, Basurto-Zambrano, Julio César, García-Calderón, Erwin Alexander