Mejoramiento del manejo nutricional de la rosa para el control de Peronospora sparsa Berkeley, causante de mildeo velloso
An agro-economic survey of the weeds and weeding practices in cassava (Manihot esculenta Crantz) in Colombia
CIAT Project on Saving Agrobiodiversity SB-01/02: Annual Report 2008 Genetic Resources Unit report on achievements and progresses