Germination velocity index of Ormosia arborea seeds submitted to different dormancy breaking treatments. T1: control; T2: immersion in 100°C water; T3: immersion in boiling water followed by 24 h of soaking; T4 and T5: scarification with number 100 and number 50 sandpaper, respectively; T6, T7, T8, and T9: immersion in sulfuric acid for 1 hour, 50 min, 45 min, and 30 min, respectively.
