Summary
The collection, agronomic behavior and variability of cubiu (Solanum topiro H & B), an herbaceous fruit plant, is described. Thirty five accesions were collected in Amazonia from Belém do Pará (Brazil) till Iquitos (Peru). A large genetic variability was found for shape and size fruit, specially in the west of the region. Part of the collection was planted. The production began six to seven months after sowing and practically finished three months later. It varied per plant from 2.500 kg ot 14.000 kg depending on soil conditions and genotype.