Salvatierra A., Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile, Chilean Journal of Agricultural Research, 2020, 80(2):253-262, doi: 10.4067/S0718-58392020000200253
Weekly observations of bud, flower and fruit development in three Eulychnia acida populations in Coquimbo. Data from the 2006–2007 season show overlapping stages on individual plants, differences in phase duration and stem productivity, and an association with local conditions. The paper proposes an eight-stage phenological scale.