Fig. 1.

Dry weights (g.pot⁻¹) and total number of leaves (in the upper part) of rapeseed grown as monocrops with one (R) or two plants per pot (RR) and in mixtures with lupine, clover and vetch (R-Lupine, R-Clover and R-Vetch, respectively) at three month after sowing. Vertical bars indicate ± S.E. Different capital and lowercase letters indicate that the mean values of total DW, and root- and shoot-DW, respectively are significantly different at p < 0.05 (n = 5). * indicates that the total number of leaves is significantly different at p < 0.05.