Physiological quality and viability of espinheira-santa (Monteverdia ilicifolia, Celastraceae) seeds
DOI:
https://doi.org/10.14808/sci.plena.2020.113101Keywords:
conservation, genetic resource, medicinal plantAbstract
The espinheira-santa (Monteverdia ilicifolia) is a native species from Brazil used in the treatment of gastritis and gastric ulcers. The production of seedlings for economic cultivation by means of seeds can be an alternative to minimize predatory extraction. The objectives were to evaluate the physiological quality of M. ilicifolia seeds in germination, emergence and storage tests and to determine the type of seed cut, the exposure period and the effectiveness of different concentrations of solution of 2, 3,5 tetrazolium triphenyl chloride to evaluate the viability of espinheira-santa seeds. For this, germination, emergence and tetrazolium tests were performed using seeds from 12 accessions of espinheira-santa. The average germination percentage was 67%, with no significant difference between the evaluated accessions. Considering the emergency test, the seeds of accessions 127 and 136 stood out for presenting the highest values of the Emergency Speed Index (ESI), and for being within the group formed by accesses with the highest emergency values (average of 87%) and the lowest Mean Emergency Time (MET). The seeds can be stored at an average temperature of 5 °C for up to 120 days with an emergence percentage above 60%. For a quick evaluation of the viability of seeds by the tetrazolium test, it is recommended to perform a longitudinal cut, in the embryonic axis, and exposure to concentrations of 0.25% or 0.50% of the tetrazolium solution, for 3 hours.
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Copyright (c) 2020 Tângela Denise Perleberg, Tamires Ebeling da Silva, Josiane Mendonça Vitória, Patrick da Silva Silva, Rafaela de Sousa Corrêa de Magalhães, Rosa Lía Barbieri, Caroline Jácome Costa, Márcio Paim Mariot
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