Diagram showing How Funks 
Hybrid Seed Corn Is Produced 
Inbred A ^ Inbred B Inbred C Armed B 
Single Cross 
a*b 
■Single 
c*d 
Double Cross 
(A'BYOD) PARENT 
<T 
ROW CUT 
OUT FOR TEED 
Fuoiks Hybrid corn is the result of years of careful selection, 
years of scientific breeding and years of trial and comparison 
in performance plots. Control pollination is practiced in every 
operation. Funks Hybrid is true Hybrid corn. 
PRODUCING DOUBLE CROSSES 
Double crosses are similarly produced on a large scale by 
planting two unrelated single crosses in a field. Pollination 
is controlled by removing tassels from all plants of one 
strain before pollen is shed. Double cross seed is har¬ 
vested from the detasselled plants, the self-pollinated single 
cross used for the male parent being discarded. In order 
to have a high proportion of the land in seed producing 
corn, one row of pollen parent is grown for each two or 
three rows of female parents, seed being produced on two- 
thirds or three-fourths of the land as the case may be. 
