OAT VARIETIES FOR THE CORX BELT 
11 
YIELDS OF RICHLAND 
EXPERIMENTS AT THE IOWA STATION 
Like the Albion variety, the yiekling power of RicMand has been 
determined in extensive varietal experiments conducted at the Iowa 
Ao;ricultural Experiment Station. The annual and average yields of 
Richland and Kherson, the parent varietv, for the 13 years from 
1910 to 1919, inclusive, and in 1921, 1922^^ and 1923, together with 
the average date of sowing, elate of ripening, height of plant, per- 
centage of lodging, and bushel weight, are shoAvn in Table 6. 
According to the data presented in Table 6, Richland for the 13 
years has outyielded the Kherson by 3.8 bushels per acre. "While 
yields of Richland at the Iowa station as well as elsewhere have 
been very favorable, this variety has not shown the wide range of 
adaptability that has characterized the Albion. Further, a statis- 
Fig. 7. 
-Outline map of a portion of tlie United States, showing distribution of the 
Richland oat in 1919 
tical study ^ of the j^ields of Richland and the parent variety Kher- 
son, given in Table 6, shows odds of 19.5 to 1 that Richland is 
superior in yielding power. 
Table 6. — Average dates of sowing and of ripening, height of plants, percentage 
of lodging, bushel iceight, and annual and average acre yields of the Rich- 
land and Kherson oat varieties at the Iowa Agricultural Experiment Station 
for the 13 years from 1910 to 1919, inclusive, and in 1921, 1922, and 1923'' 
Items of comparison 
Average date sown 
Average date ripe 
Average height of plant (inches). 
Average percentage of lodging 
(8 years) 
Acre vield of grain (bushels): 
1910 
1911 
1912 
1913 
1914 
1915 
Rich- 
Kher- 
land 
son 
Apr. 14 
Apr. 14 1 
July 12 
July 13 ; 
32 
34 i 
0.4 
1.0 1 
70.0 
62.2 1 
44.8 
38.1 
83.7 
65.6 1 
55.6 
62.8 1 
62.8 
55.3 
59.3 
49.7 
Items of comparison 
Acre yield of grain (bushels)- 
Continued 
1916 
1917 
1918 
1919 
1921 
1922 
1923 
Average 
Average bushel weight, pounds 
Rich- 
land 
Kher- 
son 
53. 
64. 
55. 
47. 
37. 
65. 
78.1 
53.8 
65.0 
62.5 
41.9 
25.9 
67.1 
78.7 
59.8 
30.8 
56.0 
1 No varietal experiments were conducted in 1920. 
3 See footnote 2, page 6. 
