PLATE 16 
Puccinia graminis tritici 
A. —Susceptible second-generation plants from the cross Marquis X Kubanka (Cl 
2094), inoculated with rust from the stock cultures. 
B. —Seedlings of susceptible parent, Marquis, inoculated with rust from the sus¬ 
ceptible second-generation plants shown in A. 
C. —Seedlings of partially resistant parent, Kubanka (Cl 2094), inoculated with 
rust from the stock cultures. 
D. —Seedlings of partially resistant parent, Kubanka (Cl 2094), inoculated with 
rust from susceptible second-generation plants shown in A. 
