Differential varietal responses in faba bean concerning pea aphid and Pea necrotic yellow dwarf virus (PNYDV) when intercropped with oat [Dataset]

This data and corresponding manuscript demonstrate varietal differences in faba bean (Vicia faba L.) in response to infestation by infection with pea aphid (Acyrthosiphum pisum) and Pea necrotic yellow dwarf virus (PNYDV) under sole cropping and intercropping conditions with oat (Avena sativa L.) in an additive design. Based on two years of field experiments (2021–2022), the research examines vector dynamics, virus spread, nitrogen fixation, and yield performance within a faba bean–aphid–PNYDV pathosystem. The results demonstrate that intercropping with oat can reduce aphid movement and limit virus spread, while contributing to yield stability through compensatory effects in the oat component. Differences among faba bean varieties highlight the importance of resilience traits and targeted genotype selection under biotic and abiotic stress conditions. Overall, the study provides insights in the role of intercropping systems and the future need to develop stress-tolerant faba bean varieties under changing climatic conditions.