No. C24] IXIIKIUTAXCK OF IICLL-LESSX KS.^ 



25 



The total number of plants in the hulled, intermediate 

 and hull-less classes agree very closely with the expected 

 numbers. The same is true for tlie .'>:! ^-rouiiing, since 

 the percentauc of Imllcd is ^5.11 4: .7S, wliich shows with- 

 out doubt that the vai-ions families give offspring which 

 follow the 1:2:1 oxpcetaney. 



In this series there is little evidence that the percent- 

 age condition of the parent plant affects the type of seg- 

 regation in the following generation. In general the 

 segregation of the various families follows a 1 : 2 : 1 ratio 

 regardless of the percentage condition of the parent. 



To show the relation between the hulled condition of 

 the parent forms and that of the heterozygous offspring 

 a correlation table was made in which the different fam- 

 ilies were arranged according to their percentage values. 

 The coefficient of correlation here is .726 + .012, which 



TABLE VII 



THE Heterozygous Parent Plants and the Percentage of 

 HuLLKD Kernels on its Offspring 



