Effects of growth-promoters on the productivity of Arundo donax L. (NileFiber™) as a purpose-grown biofuel feedstock in Nova Scotia1

Arundo donax L. is a perennial grass species of Mediterranean origin. Its high biomass yield potential in its native climate has contributed to A. donax being an important biofuel feedstock crop. This study investigates the potential of A. donax as a purpose-grown biomass feedstock for advanced biofuel production in Nova Scotia. The effects of nine different growth-promoters (bacterial and fungal species, a seaweed extract, and a lipo-chitooligosaccharide) and two inoculation methods on A. donax biomass productivity were investigated through three experimental trials: one greenhouse and one field trial inoculated by a post-planting application of the supplements around the plant stem (soil drenching) and one greenhouse trial with inoculation by root soaking just prior to planting (2016). The survival of A. donax over the winter was also evaluated over two winter seasons (2014–2015 and 2015–2016). Penicillium bilaiae Chalab. illustrated the most consistent positive effects on biomass productivity across ex...