Fig. 5. Effect on genetic advance. 1a, 1b, and 1c: Advances on yield in the Cd. Obregon environment type for the three initial populations identified by gene frequencies 0.1, 0.5, and 0.9, respectively; 2a, 2b, and 2c: Advances in yield in the Toluca environment type for the three initial populations; 3a, 3b, and 3c: Advances on lodging, stem rust, heading and kernel weight in the Cd. Obregon environment type for the three initial populations.