Nov. 12, 1921 Genetic Behavior of Spelt Form in Crosses 



353 



Table X. — Frequencies of spelt and wheat classes in F^ progeny of Fj individuals of 

 series lj26oa, spelt X Turkey 



FAMILIES CONSISTING OP SPELTS ONLY 



FAMILIES CONSISTING OF WHEATS ONLY 



FAMILIES CONSISTING OP SPELTS AND WHEATS 



The F3 populations of the series segregating in the 3 to i ratio (13255a 

 and 13260a) have a general tendency to produce the maximum frequen- 

 cies at class I , sometimes at class 2. In only 4 families out of 15 are there 

 individuals in classes above the fourth, 10 individuals in 248 receiving the 



