Impact of Pea necrotic yellow dwarf virus (PNYDV) on nodulation, N2 fixation and yield in faba bean (Vicia faba, L.)

Abstract Pea necrotic yellow dwarf virus (PNYDV) is a novel nanovirus in Europe, affecting various grain legumes. The impact of PNYDV on nodulation, symbiotic N 2 fixation and yield parameters faba bean ( Vicia L.) was investigated at controlled conditions the greenhouse (2017), on-farm natural infection foci (2018, 2019) small-scale field experiment (2020). In latter, standard variety ‘Fuego’ compared with ‘GL Sunrise’ early late infections. addition, analogous effects for enation mosaic (PEMV) were under naturally occurring spectrum recorded experiment. Results showed much more severe than PEMV leghemoglobin status, finally yield, especially Although rated less symptomatic performance toward ‘Fuego’, it similar susceptibility our where artificially inoculated to individual plants. Further research effect plant varieties its spread single or co-infection mainly as function climate change acting upon their common aphid vector required.