Methods of Breaking Dormancy and Germination Substrates for Tachigali vulgaris L.G. Silva & H.C. Lima

Abstract

The knowledge of how forest species plantules stablish successfully is essential to comprehend the conditions involving dormancy surpass and their ideal germination substrates. The present study aims to define the most efficient methods to surpass dormancy and to test different substrates that influence T. vulgaris germination. The pre-germination tests applied in this study, in addition to the control test, were: mechanic scarification (sandpaper number 100), scissor tegument cut (opposite to the hilum), 24 hour immersion in water (80 °C), and a ten minutes sulfuric acid immersion. After the pre-germinative treatments the seeds were sown in different substrates, such as: vermiculite, sand and filter paper, all of them submitted to constant light in a controlled temperature of 30 °C. The best result treatment was the scissor cut associated with vermiculite substrate.