80 



GENETICS IN RELATION TO AGRICULTURE 



the close correspondence to expectation can be seen all along the line. 

 Moreover, these families represent crosses between many different 

 starchy and sweet races, so that the observations are not based on a 

 single hybrid. The deviation of the total ratio from the 3 : 1 ratio is 

 very slight and falls far within the probable error set by mathematical 

 conditions. 



TABLE VIII. SUMMARY OF INVESTIGATIONS ON INHERITANCE OF COTYLEDON COLOR IN 



PISUM (After Johannseri) 



TABLE IX. SEGREGATION OF STARCHY vs. SWEET ENDOSPERM IN MAIZE 



