Fig. 9.

Predicted versus observed time when NecLes_Green = 0·005 for leaves 1–6, as indicated, counted from the top for the main stem of winter wheat ‘Soissons’ grown in Grignon in 2008/09 at three densities: D1 (59 plants m⁻²), D2 (160 plants m⁻²) and D3 (406 plants m⁻²). Time is expressed in linear thermal time (°Cd) since the average date of leaf emergence. Predictions are for the scenario that takes into account interplant variability of development (S_ref). Each point corresponds to the mean value for a leaf rank in one density treatment.