18 
BULLETIX 1343, U. S. DEPARTMEXT OF AGEICULTURE 
The weaker straw of lowar is indicated by the higher percentage 
of lodging. In bushel weight lowar was practically the equal of 
Kherson and Albion, but it was slio-htlv inferior to Richland. 
EXPERIMENTS OX IOWA F-VRMS 
The exjDeriments at the Iowa station led to the belief that lowar 
was a variety destined to replace Albion in a very large portion of 
the State. Albion 
had been widely dis- 
tributed both from 
tlie station and from 
commercial sources, 
and in the initial dis- 
tribution and testing 
of lowar it was re- 
quested that wherever 
convenient Albion be 
used as the home- 
grown variety. Dur- 
inof the five vears 
from 1919 to 1923, 
inclusive, lowar was 
grown on 314 Iowa 
farms in comparison 
with home-g r o w n 
varieties. The num- 
ber of experiments 
and the varieties in- 
cluded were as fol- 
lows : Kherson 33. 
Albion 153, Rich- 
land 12, Green Rus- 
sian 31, and miscel- 
laneous 85. The un- 
known home-grown 
varieties as well as those that were not grown in sufficient numbers to 
warrant separate comparison are grouped together under the heading 
of miscellaneous varieties. A summary of the average yields of these 
varieties as compared with lowar is given in Table 13. 
Table 13. — Average acre yields of loicar and oilier varieties of oats grown on 
344 loica farms during the five-year period from 1919 to 1923, inclusive 
so 
70 
I 
1 
/ 
/ 
/ 
1 
/ 
/ 
■;^ 
i 
V 
30 
20 
/O 
,-" 
/ 
• 
/ 
1 
1 
1 
1 
.1, 
1 
yOJV/?/e 2Q.60 3S.OO 39.9a 30.76 S9.3S 74:/d 
/</y£/?SOA/ /T.80 ae.OO 3e.S/ ^^.06 66.02 63.67 
Fig. 10. — Dia^'ara showing the mean acre yields (in 
bushels) of lowar as conajMred with those of Kherson 
as a standai-d oat variety in 33 trials on Iowa farms 
during the five-year period from 1919 to 1923, inclusive 
Acre yields of grain (bushels) 
Home-grown variety 
Number 
of trials 
Home- I 
lowar grown | Difference 
variety j 
I 
33 
153 
42 
31 
85 
49.81 
51.12 
52.93 
49.89 
46.47 
44.46 
44.31 
46.64 
45.24 
42.32 
5.35 
6.81 
Richland 
6.39 
4.65 
Miscellaneous varieties 
4.15 
Weighted average of all trials 
344 j 49.96 
44.19 
5.77 
