Fig. 4 Relationships between (A) estimated grain yields in the control (Y_m) and at EC_e values of 9 (Y₉) and [17 (Y₁₇)] dS m^-1, (B) Y₉ and Y₁₇, and (C) EC_e50 and Y₉ and Y₁₇. The number of cultivars used in these analyses was nine (i.e., the cultivar `Kym' was deleted)