RESEARCHES REGARDING THE EVALUATION OF THE BIOMASS POTENTIAL RESULTED FROM THE DORMANT PRUNING OF SOME VINE VARIETIES

Biomass is a primary carbon resource, together with other sources of renewable energy. Biomass may be used as raw material in order to produce energy, solid bio-fuels with high energetic value or biochemical fuels, all of them used for sustaining the economic activities. Nowadays, biomass is accounted for 12% of the primary energy production and in the developing countries this share may rise to 40-50% from the overall energy needs. The debris resulted from the dormant pruning of vine may be also included among these types of raw materials. In this paper we present the results of the researches aiming to evaluate the biomass potential of the vine tendrils, resulted from the dormant pruning of vine in a plantation which is in its 5th year of production. The research was performed at the "Vasile Adamache" farm station of the University of Agricultural Sciences and Veterinary Medicine in Iaşi; the following parameters were evaluated: average quantity of tendrils (for each vine plant and for one surface unit); humidity of tendrils immediately after pruning; calorific value of the tendrils for each vine variety taken into account. The experimental results show that pruning produces large amounts of biomass, which may be turned into pellets. The energetic potential of the tendrils depends on the variety of vine.