This trial was made up of eleven provenances of Acacia nilotica, A. seyal and A. tortilis. The trial was established in 1988 at a spacing of 4 x 4 metres, and measured at 5 years in 1993. Apart from two provenances of A. tortilis from India and Sudan, all provenances were from Burkina Faso.
The three species were significantly different in survival, height, crown area and basal area of the mean tree. A. seyal had the poorest survival, but the largest heights, crown areas and basal areas of the mean tree. The only signs of provenance differences within the species were seen in the number of stems of A. nilotica and A. tortilis, and a multivariate analysis gave no clear separation of the provenances either. The estimated dry weight production of the fastest growing provenances was approximately 3 t ha-1, or 0.6 t ha-1 year-1.