INFLUENCE OF GROWTH BIOREGULATORS ON SEED GERMINATION OF SOME MEDICINAL AND AROMATIC PLANTS

Abstract

The research was conducted at the end of February 2021 in the Institute for Medicinal Plant Research "Dr Josif Pančić" in Belgrade, with the aim of analyzing the impact of growth bioregulators on the seed germination potential of some medicinal and aromatic plant species. Germination potential of Ocimum basilicum, Levisticum officinale, Calendula officinalis and Coriandrum sativum were analyzed following the ISTA guidelines. The seeds were treated with liquid growth bioregulators Ekobuster 1 and Slavol S for 10 minutes, while seeds in the control were treated with distilled water. Seeds of Ocimum basilicum, Levisticum officinale, Calendula officinalis and Coriandrum sativum treated with three different treatments: Ekobuster1, SlavolS and distilled water, were sown in three different containers. The seeds were sown in styrofoam containers with 160 cells with a mixture of peat moss substrate. The experiment was performed in the laboratory conditions. Containers were placed inside a polythene tent for plant propagation under artificial lighting and kept under air temperature of 23 oC with occasional wetting of the substrate. During the experiment, seedling emergence and development control as well as their pathogenicity control were performed every seven days. There was no occurrence pathogenicity on the examined plants.Based on the obtained results, germination of Coriandrum sativum seeds treated with Ecobuster 1 was 85%, while in seeds of Ocimum basilicum, Levisticum officinale and Calendula officinalis the highest germination was recorded with the use of Slavol S 82.5%, 90% and 82%, respectively; in relation to control treatment