## Title: 
Differential varietal responses in faba bean concerning pea aphid and Pea necrotic yellow dwarf virus (PNYDV) when intercropped with oat
## Author: 
Ahmed Berawe berawe@gmail.com University of Kassel, Faculty of Organic Agricultural Sciences, Department of Ecological Plant Protection, Nordbahnhofstrasse 1a, 37213 Witzenhausen, Germany
Judith Nora Seeger  jseeger@posteo.de University of Kassel, Faculty of Organic Agricultural Sciences, Department of Ecological Plant Protection, Nordbahnhofstrasse 1a, 37213 Witzenhausen, Germany
Ziebell, Heiko heiko.ziebell@julius-kuehn.de Julius Kuehn-Institute, Institute for Epidemiology and Pathogen Diagnostics, Messeweg 11-12, 38104 Braunschweig, Germany
Helmut Saucke  hsaucke@uni-kassel.de  University of Kassel, Faculty of Organic Agricultural Sciences, Department of Ecological Plant Protection, Nordbahnhofstrasse 1a, 37213 Witzenhausen, Germany
## Key words: Acyrthosiphon pisum H, PNYDV-vector, Intercropping, Vicia faba L, Avena sativa L, biotic stress, yield stability
 ## Description: 
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.


## Funding 
This work was partially funded by the Hessian Ministry of Higher Education, Research, Science and the Arts as part of the HessenFonds for Refugees 2020–2021 and partially by the doctoral fellowship program, University of Kassel 2022–2024.
. ## headers:
•	Year: Date of experiment
•	Replicate: 4 Replicates
•	Variety: Two faba bean varieties (‘GL Sunrise’, ‘Fuego’). One oat variety ‘Max’
•	Cultivation: Cropping system: sole crop (SC) and intercrop (IC)
•	Position: Sampling positions:  core (the row of release in central row), perimeter (two rows apart from central row), reference (four rows apart from central row)
•	Aphids: Infector row treatments: with viruliferous aphid releases, without release
•	pods/shoot: The number of pods per plant
•	 TKW bean/g; TKW oat/g: thousand kernel weight (g)
•	Yield: Yield of faba bean t*ha-1, Yield of oat t*ha-1 and yield_total t*ha-1
•	Crude protein kg*ha-1 and crude_protein oat kg/ha
•	Air_N kg/ha: Biological Nitrogen Fixation kg/ha
•	Soil_N kg/ha: Soil Nitrogen kg/ha
•	Oats_N kg/ha: Oats Nitrogen
•	Total_N kg/ha: Air N + Soil N + oats_N
•	% Ndfa: Percentage of Nitrogen derived from atmosphere
•	green-A pisum: pea aphid (Acyrthosiphum pisum) strain, a green-coloured form
•	red_A pisum: : pea aphid (Acyrthosiphum pisum) strain, a red-coloured form
•	Megoura viciae: vetch aphids
•	aphids-total: green-A pisum + red-A pisum + Megoura viciae:
•	PNYDV- incidence: Infection status of Pea necrotic yellow dwarf virus (PNYDV) (+: positive or - : negative)
•	PEMV- incidence: Infection status of Pea enation mosaic virus (PEMV) (+: positive or - : negative)
		
For more information on the experiment, please read the related article.