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Fig. 2. For the 2000 simulations of cycles of S1 recurrent selection, mean changes in the gene frequency for + alleles associated with four physiological traits—transpiration efficiency (TE, average of five genes), flowering time (PH, three genes), osmotic adjustment (OA, two genes), and stay-green (SG, 5 genes)—given four different selection environments. The selection environments were applied as a multienvironment screen (5 locations by 2 yr) of S1 families consisting of (a, b, and c) the same environment type or (d) the target population of environments in which the three environment types (a, b, and c) were sampled in proportion to represent the target population of environments in the sorghum region of northeastern Australia (Table 2).
