CEKEAL EXPERIMENTS AT. JUDITH BASIN SUBSTATIOIST. 



29 



varieties are given in Table XX. The average yields of tliese 

 varieties are shown graphically in figure 11. 



^HB/fso/v flHII^^^HHiHHHHHBiHHHHIHIH>^<?->? 



FiG. 11. — Diagram showing the average yields of the leading varieties of oats at the Judith Basin sub- 

 station for seven years, 1908 to 1911 and 1913 to 1915, inclusive. 



Table XX. — Ava'age dates of seeding, heading, and ripening, days from seeding to 

 maturity, height, tveight per bushel, and yield of grain and straw of five leading oat 

 varieties at the Judith Basin substation, Moccasin, Mont., during the seven years, 1908 

 to 1911 and 1913 to 1915, inclusive. 





C.I. 



No. 



Average date — 



Seed- 

 ing to 

 matu- 

 .rity. 



Height.a 



Average yield per acre. 







Sown. 



Headed. 



Ripe. 



Grain. 



Straw.6 



Weight 



Group and variety. 



1908 to 

 1911 

 and 



1913 to 

 1915. 



1913 to 

 1915. 



per 

 bushel. 



Early yellow: 



Sixty-Day 



Kherson 



Midseason white: 



Siberian (i 



Swedish Select 

 Danish 



165 

 459 



741 

 134 

 441 



Apr. 29 

 ...do 



Apr. 21 

 Apr. 29 

 ...do 



July 6 

 ...do 



July 21 

 July 17 

 ...do 



Aug. 7 

 ...do 



Aug. 15 

 Aug. 16 

 Aug. 18 



Days. 

 100 

 100 



114 

 110 

 111 



Inches. 

 36.5 

 36.3 



48.0 

 42.0 

 39.0 



Bush. 

 62.4 

 58.3 



"46.' 5' 

 46.2 



Bush. 

 76.0 

 72.5 



71.7 

 70.4 

 67.8 



Lbs. 



2,250 



2,274 



3,226 

 2,714 

 2,513 



£65. 

 C34.6 

 C34.6 



36.6 

 e37.0 

 «32.3 



a Average for six years, 1909 to 1911 and 1913 to 1915, inclusive. 

 b Average for five years, 1909 and 1910 and 1913 to 1915, inclusive, 

 c Average for five "years, 1910 and 1911 and 1913 to 1915, inclusive. 

 d Average for three years, 1913 to 1915, inclusive. 

 e Average for four years, 1910 and 1913 to 1915, inclusive. 



EARLY VARIETIES. 



The Sixty-Day and Kherson varieties are the only early oats that 

 have been tested at Moccasin during the entire seven years. ^ The 

 Sixty-Day variety was introduced from southwestern Russia into the 

 United States by the United States Department of Agriculture in 

 1901. The Kherson was imported from the same general locahty a 

 few years earher by the Nebraska Agricultural Experiment Station. 

 Plats of the Kherson and Sixty-Day oats at the Judith Basin sub- 

 station are shown in figure 12. The two varieties are practically 

 identical. The straw is rather short and fine and the heads loose 

 and spreading. The grain is yellow in color, small, long, and rather 

 slender. The hull is thin, and under favorable conditions the weight 

 per bushel is high. In the Judith Basin these varieties usually reach 

 maturity in 95 to 105 days and are about 10 days earlier than the 

 midseason varieties. At Moccasin the average yield of the Sixty- 

 Day is sUghtly larger than that of the Kherson, Two pure-line 



1 For a more extended discussion of these varieties, see Warburton, C. W., Sixty-Day and Kherson oats, 

 U.S. Dept. Agr., Farmers' Bui. 395, 27 p., 5 flg., 1910. 



