Published in Scientific Papers. Series B, Horticulture, Vol. LXVI, Issue 1
Written by Iulian VOICEA, Viorel FATU, Florin NENCIU, Catalin PERSU, Remus OPRESCU
The article presents a series of experimental studies on the use of an oleic extract, produced by steam separation utilizing a prototype distillation equipment. The separation process is performed with the use of wet saturated steam under pressure, using as raw material twigs and buds of dwarf silver fir. Since the volatile extracts of aromatic plants do not bring a direct nutritional contribution to the seeds subjected to germination, the germination increase and the root growth of the plants can be obtained only from the exercise of the anti-microbial, anti-oxidant and insect-repellent effect. The use of essential oils in the protection of seeds and rhizosphere is an ecological method because it does not negatively affect the number and frequency of species of useful microorganisms. The nutritional relationship that is established between the seeds treated with volatile oils and the germination bed can be influenced by the changing proportions of microbial populations with beneficial effects on productivity.
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