Conventional and unconventional techniques for in situ conservation and capitalization in agro-systems of Veronica officinalis
2012
Danila, D. | Stefanache, C. | Drutu, C. | Trotus, E.
Veronica officinalis, used in ethno-pharmacy, is a potential source of steroidal glycosides for industrial production. A cosmetic line based on organic extracts of MAP from alpine and subalpine areas, including V. officinalis, is a way to exploit bioresources. As a result of temperature fluctuations and high level of UV radiations in the natural habitat of the species, plants that grow at high altitude have a high content of antioxidant and skin protective compounds. Natural areas in the Romanian Eastern Carpathians, where we identified V. officinalis populations, are under intensifying deforestation, a phenomenon that leads to impairment of essential habitat for species survival. The aim of our study is the use of conventional and non-conventional techniques to obtain V. officinalis both for in situ conservation and for propagation in agro-systems. This requires the supply of vegetal raw material in the context of the reduction of the natural basins and of deforestation in the Romanian Carpathians. Supplementation with herbs is based, in recent practices, on the collection of wild and/or ex situ production in agro-ecosystems. Biological material used to initiate experimental cultures was taken from natural populations in Bistrita Valley. The field cultures were achieved by seeds and bush division, the first method being an advantage from the economic point of view, and the second to maintain uniformity in the selected plant cultures. The biggest production of fresh herba (5100 kg/ha) was achieved by dividing the bushes, in April. In vitro plant regeneration from axillary bud multiplication produced vigorous plantlets after 4-5 weeks, with 85-90% survival rate in field.
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