UNITED STATES DEPARTMENT OF AGRICULTURE 
DEPARTMENT BULLETIN No. 1334 
Washington, D. C. ▼ November, 1925 
TESTS OF BARLEY VARIETIES IN AMERICA 
B}^ Harry V. Harlan, Agronomist in Charge, Mary L. Martini, Assistant 
Botanist, and Merritt N. Pope, Associate Agronomist, Barley Investigations, 
Office of Cereal Investigations, Bureau of Plant Industry 
CONTENTS 
Page 
Scope of the bulletin 1 
Barley growing in America 2 
Preparation of material -. 13 
Discussion of station yields 17 
Regional adaptation of varieties 154 
Well-known or promising varieties 159 
Accession data of Cereal Investigations num- 
bers - - 175 
Page 
Botanical comparison of prominent varieties. 205 
Best varieties of the period from 1917 to 1921, 
inclusive . 207 
Distribution of varieties by experiment sta- 
tions 212 
Index 213 
SCOPE OF THE BULLETIN 
Barley has been a minor crop in all but a few States of the United 
States. Many importations have been made, tried, and discarded 
by individuals and experiment stations. Often the same varieties 
have been reioiported and retested at the same stations later. A few 
men have been particularly interested in barley. Until now no effort 
has been made to assemble the incidents and results of the early work. 
This task is becoming more difhcult each year. Already the results 
of many tests have been lost. Cereal breeding is entering on a new 
basis, and if ever a summary is to be made of the pioneer work it is 
best made now. 
The year 1921 has been chosen arbitrarily as the last one from which 
yields are included. This year divides fairly well a transition period. 
While the replication of plats is nov/ the method in general use for the 
testing of varieties, the data for the year 1921 include about the last 
of the yields from unreplicated plats. Also, at about this time a large 
number of varieties produced by younger plant breedei^s made their 
appe^ci/ance. The closer relationship existing between experiment 
stations resulted in these new varieties being grown promptly at a 
large number of places. To show the value of these new varieties, 
yields of several seasons after 1921 would need to be included. 
This bulletin is the result of an attempt to gather together all the 
material available. The writers know that their work is far from 
complete. They feel sure that owing to the incompleteness of the 
records and the early date of many of the references the identification 
33610°— 25t 1 . 1 
