Fig 4. Mean single berry weight [g] in (A) 2010, (B) 2011, (C) 2012 and α-amino acid content (N-OPA) [mg L^-1 N] in (D) 2010, (E) 2011 and (F) 2012.

Means ± sd per management system and year (int = integrated treatment, org = organic treatment, biodyn = biodynamic treatment).