Germinação de sementes de Bromelia antiacantha em diferentes fotoperíodos

Germination of Bromelia antiacantha seeds in different photoperiods The knowledge of the germinative behavior of native species is important for the adoption of techniques aimed at its propagation and conservation. The present study aimed to evaluate the effect of the photoperiod on the germination of Bromelia antiacantha Bertol seeds. The design was completely randomized, with four treatments and six replicates of 25 seeds. The different photoperiods were 0h, 8h, 12h and 16h of day-1 light. The percentage of germinated seeds (G), germination speed index (IVG), percentage of normal seedlings (PN), abnormal seedlings (AP) and non-germinated seeds (NG) were evaluated. However, there was a progressive increase in G, IVG and PN as the photoperiod increased, with maximum G (78.0%) and percentage of PN (74.7%) with 16h light day-1, and maximum IVG (19.4) with 12h day-1 light. We conclude that B. antiacantha is a species with neutral photoblastic seeds whose germination is favored in the presence of light.