Pinus kesiya International Provenance Trials: Overview

bullet1 Zimbabwe

bullet2 Conclusion and recommendations

The trial is only 6 years of age, and it may thus be premature to draw very specific and detailed conclusions based on the present assessment. It is thus recommended that the trial is maintained, and re-assessed later on.

Based on the results of the present assessment, the Vietnamese sources show promise. They are fast-growing and they have for P. kesiya a good stemform. They are less favorable in regard to wood density, especially compared to the Philippine sources, and they set many foxtails. It is concluded, however, that Vietnamese material could be an important genetic resource with a potential in Zimbabwe. The feasibility and possibilities to include this material in seed production and further breeding activities of the species should be further investigated.     

In regard to practical recommendations on seed sources for immediate use in plantation establishment, John Meikle CSO would be an obvious choice. The trial results do unfortunately not provide reliable information on the performance of this source, as the seedlot only represent one clone in the orchard. Other seed sources may be available within Zimbabwe, e.g. the BSOs established with material from Zambia and Madagascar in the early 90s.

If imports are considered, the results from the present trials indicate that material from the CSO in Zambia would be a good choice. It is a good volume producer, and it has an excellent stemform. The Morarano land race from Madagascar compares less favourable.