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Fig. 1 Response of San Gabriel to one cycle of divergent recurrent selection for reaction to root rot caused by Fusarium oxysporum, and characterization of Uruguayan cultivars, as determined by frequency distribution of plants per (A) disease severity class, and (B) ranges of vertical discoloration. SG, San Gabriel; SG-R1, Cycle 1 resistant population; SG-S1, Cycle 1 susceptible population; E. Gan., Estanzuela Ganador; Draco, INIA Draco. Chi-square tests: (A) SG vs. SG-R1, P < 0.01; SG vs. SG-S1, P = 0.66; E. Gan. vs. Draco, P = 0.07; (B) SG vs. SG-R1, P = 0.02; SG vs. SG-S1, P = 0.09; E. Gan. vs. Draco, P < 0.01
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