EXPERIMENTS WITH KHERSON AND SIXTY-DAY OATS. 63 



Results under Irrigation in Idaho. 



RESULTS AT AnERDEEN.l 



The Kherson and Sixty-Day oats have been included in the cooper- 

 ative varietal experiments conducted under irrigation at Aberdeen, 

 Idaho, since 1913, when experimental work was begun at that sta- 

 tion. Albion and Kichland, two selections of Kherson from the Iowa 

 station, were added to the tests in 1916. In Table LII the annual 

 and. average yields of these and seven other varieties grown at 

 Aberdeen during two or more years in the 5-year period from 1913 

 to 1917, inclusive, are presented. 



Table LII. — Annual and average yields of the Kherson, Sixty-Day, Richland, Albion, 

 and seven other varieties of oats grown under irrigation at the Aberdeen (Idaho) substation 

 during two or more years in the 5-year period from 1913 to 1917, inclusive. 



[Data obtained, in cooperation witli the Idaho Agricultural Experiment Station.] 





C.L 

 No. 



Yield per acre (bushels). 



Group and variety . 



1913 



1914 



1915 



1916 



1917 



Average. 





1913 to 

 1917 



1916and 

 1917 



Early yellow: 



Kherson 



423 

 165 

 729 



787 



493 



754 

 720 

 134 

 724 

 756 



759 



88.7 

 103.0 



110.0 

 101.4 



160.2 

 161.9 



119.2 

 98.5 

 106.2 

 114.2 



111.0 



111.0 

 106.2 



93.7 

 2 68.7 



96.2 



116.2 

 90.6 

 123.1 

 109.3 



110.6 



111.8 

 109.3 

 102.5 

 120.6 

 98.1 



118.9 

 111.1 



120.0 



121.1 

 118.9 

 112.2 

 114.4 

 109.3 



.117.7 



Sixty-Day 



94.6 



Albion (Iowa No. 103, white) 



Richland (Iowa No. 105) 



114.7 









111.8 



Midseason yellow: 



Golden Rain 



126.2 



103.8 



102.2 



1 104. 2 



103.8 



73.1 



106.2 



98.8 



120.3 

 113.4 

 97.1 

 120.3 

 115.6 



100.5 



153.5 



158.5 

 163.6 

 163.6 

 158.5 

 163.6 



123.1 



110.8 



Midseason white: 



Early Mountain 



111.4 



Silvermine 



107.8 



Swedish Select 



98.1 



"Rustless" selection 



94.7 



Lincoln 



97.2 



Late white (side): 



Tartar King 















1 Average of two check plats. 



2 Yields not comparable, due to poor stand resulting from seed treatment for smut. 



Reference to Table LII shows that of the eight varieties which 

 have been grown for five years the Early Mountain and Golden Rain 

 only shghtly outyielded the Kherson, with the Silvermine equaling 

 the Kherson in yield. All of the midseason varieties except Lincoln, 

 however, have outyielded the Sixty-Day in that period. In the 

 2-year period, 1916 and 1917, the Kherson has outyielded all others. 

 The Albion (Iowa No. 103), a white selection from Kherson, has aver- 

 aged only 3 bushels less. Indications are that this new oat is of con- 

 siderable promise for irrigated conditions in southern Idaho. 



1 The data here presented are from unpublished reports of Mr. L. C. Aicher, the superintendent of the 

 Aberdeen substation, to the Office of Cereal Investigations. 



