Impact of the varieties obonuco andina and San Isidro in the department of Nariño, Colombia Alvaro Mauricio Cadena Pastrana, Marcela Elizabeth Riascos Delgado, Andrea Castro Jiménez, Alcira Maria Delgado Sánchez, Gregorio Zambrano Moreno, Angela Rocio Vásquez Urriago 257-266 2022-11-08