Fig. 4
From: Lower vicine content reduces the reproductive yield performance in faba bean (Vicia faba L.)

Correlation between yield performance of faba bean and vicine content. (A) growth and reproductive performance of some contrasting (low/high vicine) faba bean accessions at the age of 70 days in pots in controlled condition and their respective vicine concentrations. (B) variation in hilum pigmentation among some of the important faba bean accessions, where Fb-4, Fb-30, Fb-33, Fb-40, Fb-41, Fb-162, and PS had black pigmentation in hilum, on the other hand, Fb-173, Fb-177, Fb-181 had colourless hilum. (C) Seed size (visual observation made on 5 seeds per accession), test weight (g) and vicine concentration (g/kg) of eight important selected faba bean accessions, a strong significant negative correlation (− 0.60***) between TW and vicine concentration can be seen. (D) Pearson’s correlation coefficients between vicine concentration and major yield component parameters and morphological traits recorded from field evaluation of faba bean accessions.