Due to its ecological and ornamental importance, the imperial bromeliad (Alcantarea imperialis) has been irrationally harvested. The production of plantlets in large scale presents as an option to reduce its harvest as will as to offer how products to consumers. The objective of this work was to evaluate the developing of Alcantarea imperialis in vitro using different substrates. In this experiment, different proportions of carbonized rice husk, sand, humus and soil were evaluated. The basic fertilization used was the one recommended pineapple in vase by Malavolta (1980) for the growthgs. The substrate consisted of 50% soil and 50% carbonized rice husk produced largher plants with 10.24 cm height and 19.26 cm roset diameter.
Alcantarea imperialis; imperial bromeliad; substrates