Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 1
Written by Nеli GROZEVA, Galya PANAYOTOVA, Mariya GERDZHIKOVA, Mima TODOROVA
The Bulgarian endemic Betonica bulgarica Degen. & Neič. is a protected species included in the Red Data Book of the Republik of Bulgaria vol.1. Plants and fungi. On the territory of “Sinite Kamani” Natural Park it forms populations in Ablanovo area, Slancheva polyana area, Upper lift station area and Karandila area. Main threats to the populations in the Park are the anthropogenic impact, difficult seed reproduction, soil erosion processes and the spread of eagle fern (Pteridium aquilinum) in the border areas of the population in Slancheva polyana area. According to evaluations, both in-situ, and ex situ conservation measures should be included for the protection and stabilization of populations of Betonica bulgarica. The aim of this study was to develop a technology for growing species from mature seeds in laboratory conditions. In order to realize the objective, a vast amount of literature was studied and biennial field research of the populations in the “Sinite Kamani” Natural Park was conducted. The developed technology is successful and fully complies with the environmental conditions of the natural habitat of the species in the Park. Using it, the species has been successfully propagated in the scientific laboratories of the Faculty of Agriculture at Trakia University from mature seeds to 6-8 leaves (phenophase) for replenishment of the populations. The technology can be used to replenish other natural populations of Betonica bulgarica in Bulgaria. In order to determine the effectiveness of the application of this measure for ex-situ conservation is necessary to continue observations after introduction of the plants grown in laboratory conditions, to follow their adaptation and further development, and if necessary to protect them and stabilize their condition.
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