Mimosa caesalpiniaefolia Benth. is a native species from Northeast region, Brazil,
which is cultivated progressively from Maranhão to Rio de Janeiro States. Its presents great potential
for arborization, it surrounds it lives and wood production. The present work was realizated with
Mimosa caesalpiniaefolia seeds with the objective to determine the substratum type, temperature,
the middle time and the relative frequency of germination, for use as a pattern in the conduction of
germination and vigor tests. It took place an experiment in the Laboratório de Análise de Sementes
do CCA-UFPB, in Areia-PB, in completely randomized design with the treatments distributed in
outline factorial 4x4, temperatures (constant of 20, 25 and 30oC and alternate of 20-30oC) and
substrate (seeds cowered by paper shits, seeds on paper sheets, seeds into sand and seeds into
vermiculite) in four replications of 25 seeds. The following parameters were analyzed: germination
and of abnormal seedlings (%) first germination count, germination speed, medium time and relative
frequency of germination, fresh matter and weight of dry matter of seedlings. According the results
in all substrates the temperature of 25oC was most adequate for conduction of germination and
vigor tests for Mimosa caesalpiniaefolia seeds. For all temperatures utilized the best germination
was observed when the seed were sowed covered bay paper shits.