Fig. 11. Resistant reactions of transgenic T1 IR50 plants introgressed with Xa-21 for bacterial blight resistance inoculated with Races (A) PXO99, (B) PXO86, and (C) PXO341. Leaves 1 to 5 represent IR24, IR50, IRBB4, IRBB21, and transgenic IR50 (T13) (Piz-5 + Xa-21), respectively, scored 14 d after inoculation.