Fig. 6. Percent infection with Karnal bunt on 106 head selections derived from the elite bread wheats Irena/Babax//Pastor (A) and CNO79//PF70354/MUS/3/Pastor/4/Babax (B) after artificial field inoculation at one planting date during the crop cycle autumn-winter 2003-04 in the Yaqui Valley, Sonora, Mexico.