Results and Discussion
Figure 1 shows the comparison of the substrates. For the three lots, higher values of germination and germination first count were obtained when using sand at temperatures of 25 and 30 °C, while the temperature of 20 °C and 20-30 ºC generally resulted in higher germination on the paper roll. For germination temperatures (Figure 1), for the three
lots which used the sand substrate, higher germination potential and first germination count occurred at 25 and 30 °C, while on paper roll, values obtained for these variables at 25, 30 and 20-30 °C did not differ and were higher than those observed at 20 °C. The lower values for both germination and first count were obtained at 20 °C, regardless of substrate. The lower germination observed in tests conducted at 20 °C can be attributed to the low metabolic activity of seeds at a lower temperature (Socolowski and Takaki, 2004;. Bewley et al, 2013), resulting in a lower percentage of normal seedlings at the end of the test.