No. 646] SHORTER ARTICLES AND DISCUSSION 461 



LINKAGE BETWEEN BEACH YSM AND ADHERENCE 

 IN MAIZE 



Adherence first appeared in the second generation of a 

 brachytic x Boone Co. White hybrid and seemed to be linked 

 closely with normal stature.^ Subsequent progenies indicated 

 that there was no very close linkage between these characters 

 and possibly none at all,- The relationship of these two inter- 

 esting characters has been tested now in more detail and it 

 seems certain that their genes are located on the same chromo- 



A cross was made between a non-adherent brachytic plant 

 and an adherent plant of normal stature, both plants being 

 segregates in the F, of the bracliytic-Boone hybrid. The first 

 generation segregated with respect to the brachytic culms, ap- 

 proximately half the plants being of normal stature, but none 

 exhibited a tendency toward adlierence. From the behavior of 

 the F^ plants it is apparent that tlie adlienMit parent of the 



iKempton, J. IT., "A Brachytic V;iri;itinii in Mai/.." U. S. Dept. of 

 Agri. Bull. 925, Feb., 1921. 



2 Kempton, J. II., "IIerita])le Characters in ^ralze V. Adherence," 

 Jouma: of Heredity, Vol. XI. No. 7, Sept.-Oct., 1920. 



