International Trials of Acacia and Prosopis: Overview of results

bullet1 India
bullet2 Site: B.G.Kere

bullet3 Trial 15: Species and provenance trial of Acacia

This trial was made up of  22 provenances, mainly of the genus Acacia. The species A. aneura, A. auriculiformis, A. mangium, A. nilotica, A. planifrons, A. senegal, A. tortilis were included with Dalbergia sissoo and a hybrid of Eucalyptus. The provenances were from India, Africa and Southeast Asia/Australia. The trial was established with a spacing of 3 x 3 metres in 1985 and assessed after 5 years in 1992. Different growth parameters were measured and subjected to analyses of variance and multivariate analyses.

The fastest growing provenances had increment rates of almost 1 m2 ha-1 y-1, corresponding to a dry weight production of up to 2.6 t ha-1 y-1. The provenances of A. senegal from Senegal and the hybrid of Eucalyptus had particularly fast growth. A. mangium, on the other hand, had a poor survival and a relatively slow growth and did not seem apt for the site. For the other species, the performance was intermediate.

A. mangium, A. nilotica and A. senegal were represented by several provenances. There were no convincing signs of differences between the provenances of A. mangium, but within A. nilotica and A. senegal there were clear and significant differences between the provenances included.