Uso do extrato de Piper nigrum (pimenta-do-reino) na redução da incidência de Aspergillus niger em sementes de Pseudobombax marginatum (Embiratanha).

Abstract

Use of Piper nigrum (black pepper) extract to reduce the incidence of Aspergillus niger in Pseudobombax marginatum (Embiratanha) seeds. In order to evaluate the effect of treatment with Piper nigrum extract (black pepper) in reducing the incidence of Aspergillus niger in Pseudobombax marginatum (embiratanha) seeds, an experiment related to seed health was carried out in the laboratory. In this experiment, the seeds received the following treatments: Control (T1-sterile water); Treatment 2 (T2 - 30% black pepper extract and 70% sterile water); Treatment 3 (T3 - 50% black pepper extract and 50% sterile water); Treatment 4 (T4 - 70% of black pepper extract and 30% of sterile water) and Treatment 5 (T5 - 100% of pure black pepper extract), where they were placed in Petri dishes with 15 cm in diameter containing the filter paper substrate and incubated at room temperature 27 ± 1° C with a 12-hour photoperiod. The results showed that the use of Piper nigrum (black pepper) extract reduces the incidence of A. niger in P. marginatum (embiratanha) seeds. Although no significant differences were found between the different proportions of extract used, the lowest incidence of A. niger was obtained by treating the seeds with a concentration of 70% of P. nigrum (black pepper) extract.