PLATE 1 
Parental varieties used for crossing 
A. a. — Triticum turgidum (Alaska). 
b. — T. vulgare (Amby). 
c. — T. plonicum (Polish). 
d. — T. compactum (Washington Hybrid 143). 
e. — T. vulgare (Marquis). 
/.— T. durum (Kubanka). 
Marquis X Alaska F 4 
B. a-h .—Various types of segregates resulting from the most intermediate types 
-of F 3 segregates. The numbers correspond to the numbers in Table VI, where 
the description, chromosome number, and sterility of each plant is presented. 
D. a-f . —Various types of F 2 segregates from the cross Marquis X Alaska. 
In addition to parental types individuals are recovered which resemble T. Spelta 
and T . durum. 
C. a-f. —Types of segregates from the F 2 of the cross Hybrid 143 X Polish. 
