446 



Journal of Agricultural Research 



Vol. XIX. No. 9 



The use of a single spike and the great change of climatic conditions 

 from day to day in Minnesota resulted in a much less uniform trend to 

 the results than was the case with the Hannchen barley previously 

 reported.^ A sample should consist of more than one spike; but, 

 entirely aside from the smallness of the sample, Minnesota is not a 

 desirable place to make a study of this kind. There are many cold, 

 dark days in which little growth occurs, while frequent storms break 

 the culms and cause lodging. The lodging was so bad during the latter 

 part of the experiment that many of the culms started to decay near the 

 base. The resultant irregularities are quite apparent in Table II, where 

 the data presented in Table I are summarized. 



Table II. — Average wet weight, length, lateral diameter, and dorsoventral diameter of kernels 

 from normal and clipped spikes of Manchuria barley at St. Paul, Minn., in igij 



NORMAL SPIKES 



' Harlan, Harry V., op. ai. 



