Study of the Germination of Scarified Seeds of <i>Burkea africana</i> Hook. For Its Domestication in Chad

The objective of this work was to determine new approaches that could improve the germination quality Burkea africana seeds under reproducible conditions and by means available farmers with a view its propagation. tests concerned influence three pre-germinative treatments. It is about light scarification (Scl), medium (Scm) deep (Scd) in order some parameters are latency time, time germination, rate speed germination. treated were sown transparent germinators lined hydrophilic paper then after appearance radicles, plants transplanted on five types substrates (black soil, fine sand, sawdust, mixtures 1/1 sawdust-black soil sawdust-fine sand). results obtained (Scp) compared those control, showed clear reduction lag (3 days/15 days (control). At 5% threshold, times 6.27 × 10-1 6.01 significantly influenced. Germination rates 4.18 3.92 also influenced pretreatment. improved (80%). Regardless treatment, substrate “sawdust sand” improves scarified 14.07% more “fine at threshold. mechanical type thus positively homogeneously africana. domestication species possible can be considered for useful purposes.