Fig. 2. Coefficient of variation of average seed number per plant at maturity and average plant growth rate during the critical period for seed set as a function of plant density in Season I. Number 2 indicates commercial densities (29.8, 5.8, and 8.5 in soybean, sunflower and, maize, respectively). Numbers 1 and 3 indicate low and high densities, respectively (Table 1).