International Trials of Acacia and Prosopis: Overview of results

bullet1 Pakistan
bullet2 Site: Dagar Kotli

bullet3 Trial 22: Provenance trial of Acacia nilotica

This report describes results from a trial with 11 provenances of Acacia nilotica from India and Pakistan. The six Indian provenances represented the subspecies indica var. cupressiformis, subsp. indica var. jaquemontii and subsp. indica var. vediana. The trial was established  in 1984 with a spacing of 3x3 metres, and assessed after eight years in 1992. Different growth parameters were measured and subjected to analyses of variance and multivariate analyses.

Survival in the trial was moderate, and there was a large variation in the growth between different parts of the trial. There were significant provenance differences in survival, number of stems, basal area and dry weight. Indian provenances represented both the best and the poorest provenances, whereas the provenances from Pakistan had an intermediate performance. The fastest growing provenances had a basal area increment rate of 1.6 m2 ha-1 y-1, corresponding to a dry weight production of approximately 6.5 t ha-1 y-1.