Mangabeira, belonging to the family Apocynaceae, is a native species of the Cerrado and coastal plains, known for its importance in the social, economic and cultural spheres. This study aimed to evaluate the effect of different culture media on the in vitro germination of seeds of mangabeira, to contribute scientifically with the knowledge related to this species. The treatments used were: T1 - vermiculite (+40 mL of water); T2 - vermiculite + sand (1:1 + 40 mL of water); T3 - vermiculite + clay (1:1 + 40 mL of water); T4 - vermiculite + basic MS (40 mL); T5 - vermiculite + ½ MS (40 mL); T6 - sand (+40 mL of water); T7 - clay (+40 mL of water); T8 - sand + clay (1:1 + 40 mL of water). It was set up an experiment with eight treatments including eight replications with 80 seeds per treatment. The following variables were analyzed: percentage of seedling emergence, seedling emergence average time and speed index of germination. The experimental design was completely randomized and the averages were compared by Tukey test at 5% of significance. There were significant differences for the germination percentage, T3 being statistically superior, and for the GSI, with the best result, treatments T1, T2 and T3. Moreover, the values of average time of germination did not differ significantly. According to our results, we can conclude that the treatments provided with vermiculite and combinations, T1, T2 and T3 exert positive influence on the emergence of Hancornia speciosa Gomes.
Apocynaceae; In vitro culture; Germination
