Influência alelopática do extrato da semente de Passiflora edulis (maracujá) na germinação de Triticum aestivum (trigo)

Abstract

Passion fruit (Passiflora edulis) is popularly known as soothing as their substances act as tranquilizers and painkillers and muscle relaxants in the central nervous system. Rich in secondary metabolism substances, also known as secondary metabolites or allelochemicals, passion fruit was chosen to study the possible allelopathic effects of its seed extract in the seed germination of wheat (Triticum aestivum). The passion fruit were obtained in a Itumbiara GO-commerce, where they underwent a process for despolpação use of seeds. Then, the seeds were washed in water and dried in a chemistry laboratory oven with temperature ranging from 50 to 60 °C for 48 hours. Grinding was done by soaking method, using a mortar. The mass of crushed seeds obtained was divided into three equal portions and mixed with 200 mL of the respective solvents: dichloromethane, ethanol and hexane. During 7 days, the solutions remained at rest, being agitated 12/12 hours. The solutions were filtered and the solvent thereof evaporated to obtain the extract. The germination test was conducted in three replicates, using solutions with concentrations of 25, 50 and 100 ppm and 25 seeds in each Petri dish used. After germination period allelopathic potential of dichloromethane extract were found. According to the results it can be concluded that seed extract of the species Passiflora edulis can cause allelopathic effect on the germination of Triticum aestivum.