Potencial alelopático de extrato de erva-mate na germinação de plantas medicinais

Abstract

Yerba mate (Ilex paraguariensis St. Hil.), Represents an agricultural alternative for properties in the south of Brazil, and because it is a tree forest species found only in South America, it has potential for export. In addition to exercising a social and cultural function, the disposal of yerba mate used in the preparation of chimarrão, when incorporated into the soil, can serve as organic fertilizer and interfere with the development of various cultures. The objective of this work was to verify the effect of different concentrations of the crude aqueous extract of yerba mate extracted from the commercialized product on the germination of medicinal plant seeds, specifically in Chamomile (Matricaria chamomilla L.), Fennel (Pimpinella anisum L. ), Mint (Mentha piperita) and Macela (Achyrocline satureoides). The experiment was carried out in the plant physiology laboratory at the Federal University of the Southern Frontier and conducted in a completely randomized design, using five repetitions of 25 seeds of each culture and four concentrations of the extract (0%, 1%, 5% and 10%), observing the number of seeds germinated in different treatments and extract concentration. The germination averages of seeds of each analyzed culture, where the count was made in the fourteenth day of installation of the experiment, in function of the concentration of the crude aqueous extract of yerba mate (Ilex paraguariensis) in the concentrations of 0% 1%, 5 %, 10%, it is possible to infer (Tables 1, 2,) that there was no significant difference in the average germination of the seeds of medicinal plants.