Influence of the rhizome size on the germination of Giant reed (Arundo donax L.) and Miscanthus in Central Italy
Pari, L.; Assirelli, A.; Croce, S.; Acampora, A.; Santangelo, E.
21st European Biomass Conference and Exhibition, 3-7 June 2013, Copenhagen, Denmark.
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Via Giacomini 28, I - 50132 Florence.
ETA-Florence Renewable Energies
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Miscanthus (Miscanthus x giganteus) and giant reed (Arundo donax L.) have received particular attention during the last decade for their production of lignocellulosic biomass. They are perennial rizhomatous grasses usually propagated by rhizomes. The planting phase represents one of main voice of the cultivation costs. The Consiglio per la ricerca e sperimentazione in agricoltura, Unità di ricerca per l’ingegneria agraria (CRA-ING) has studied the real capacity of germination and development of rhizomes of size smaller than reported in literature in the perspective of savings for propagation costs. Rhizomes with less or more than 5 buds (for miscanthus) or belonging to three different class of length (5-10 cm, 10-15 cm and >15cm, for giant reed) were compared. Though limited to the environmental condition of the site (central Italy), the research showed that savings on propagation material could be obtained, but differently between miscanthus and Arundo. For the establishment of miscanthus, in the studied area it would be advisable the use of rhizome carrying more than 5 buds. Conversely, Arundo can be propagated by rhizomes smaller than 10 cm (or even less), provided that the percentage of germination is improved.