At 30 °C, viability values at different concentrations and coloration periods did not represent the values observed in the germination test, probably due to the fact that the tetrazolium solution did not spread uniformly, thus hindering coloration and evaluation. In this case, embryos that did not develop optimal coloration may have been considered unviable when the absence of coloration could have been caused by the incubation temperature, combined with different concentrations and times.