Fig. 2. Results of artificial field inoculations with Karnal bunt (Tilletia indica) of 1,458 head selections derived from 14 elite bread wheats after artificial field inoculation at one planting date during the crop cycle autumn-winter 2003-04 in the Yaqui Valley, Sonora, Mexico. The level of infection of the check WL711 is the average of the three highest levels.