PLATE 5 
Head types present in the F 6 generation of wheat-rye hybrid plants with hairy 
necks: 1 and 2, probable natural hybrids found in progeny of selections I and K, 
respectively; 3 and 4, two types of heads in the progeny of selection K. Head 
No. 3 produced the rye-like kernels (G); and head No. 4 the wheat kernels (H) 
shown in Plate 2. (Natural size.) 
