Figure 4.

The comparison of legume yield achieved in IC as a function of that of intercropped wheat. Yield achieved in IC by faba bean (A) and pea (B) as a function of that of the intercropped wheat. The symbols correspond to ICF (red), ICP (green), Exp.I (circles), Exp.II (squares), L1823 wheat cultivar (open), and Sculptur wheat cultivar (closed). The ellipses represent the prediction interval at p = 0.90 for ICs with L1823 (thin green or red line), ICs with Sculptur (thick green or red line), and in black for both L1823 and sculptur cultivars. Each point corresponds to a single replicate data.