Diagnosis of camelina seed yield and quality across an on-farm experimental network

Camelina [Camelina sativa (L.) Crantz] is an emerging oilseed crop combining both industrial and agronomic advantages. seed yield, oil protein contents, fatty-acid composition, vary across genotypes, environments, agricultural practices. However, no studies have been conducted to identify rank major limiting factors explaining yield quality variations under on-farm conditions. performance was measured on 39 experimental strips corresponding five camelina management routes (grown as intercrop or sole crop), implemented in nine farmers’ fields northern France 2017 2018. The ranking of candidate factors, defined a priori from scientific literature, carried out using model mixing method based the Akaike Information Criterion. Main (ranging 62 2585 kg ha?1) were nitrogen status at flowering stage downy mildew. indeed positively correlated with Nitrogen Nutrition Index (R2 = 0.44, p 0.007). Oil content varied 36.6 46.5 % negatively content. indicators grain filling duration Both poly-unsaturated linolenic acid contents duration, temperature during period. mainly explained by N uptake intercropped species (pea barley), amount available inorganic soil between sowing flowering. Downy mildew influenced weather conditions weed biomass. This study showed large variability identification made it possible pinpoint ways improving namely choosing genotypes high resistance mildew, better managing fertilization delaying date. Finally we also identified research topics be addressed support adoption this new farmers elaboration critical dilution curve.