Fig. 2. Frequency distributions and means of numbers of F8:9 recombinant inbred lines derived from the cross Belneb RR-1 x A 55 for disease reactions and population size of Pseudomonas syringae pv. syringae (Pss) in common bean; (A) mean ratings of stem reactions to Pss strain BS 191 based on two experiments (1 = resistant and 5 = susceptible) in a growth chamber test; (B) mean percentages of the leaves diseased per field plot based on 1996 and 1998 data; (C) mean ice freezing temperatures based on 1996 and 1998 data; this is an indirect measure of Pss population sizes associated with field-grown bean leaves.