26 



BULLETIN 270,, U. S. DEPARTMENT OF AGRICULTURE. 



tions of the United States. At Williston, however, they have given 

 far lower yields than the other varieties under test, and there is no 

 good reason for recommending them for this district unless a very 

 early variety is desired. 



Fig. 9. — Heads of lour varieties of oats grown at the Williston substation (left to right): 1, White Russian; 

 2, Siberian; 3, Swedish Select; 4, Sixty-Day. 



Table XIII. — Annual and average yields, growth data, and weight 'per bushel, by groups, 

 of eleven varieties of oats grown at the Williston substation, 190S to 1914, inclusive. 



Group, Cereal Investiga- 

 tions number, and 

 variety. 



Midseason white: 



731, Abundance 



738, Lincoln 



741, Siberian 



714, Silvermine 



739, Myrick 



134, Swedish Select. 



Midseason yellow: 



495, Probsteier 



Late white: 



732, White Russian 

 744, White Russian 

 713, Tartarian 



Early yellow: 



165, Sixty-Day 



Yield per acre (bushels). 



31.3 91.1il2.5 

 32.1 96.2 15.6 

 29.0104.1J10.9 



37.4 103.314.8 



27.3 90.4 8.9 



28.4 86.0 



36.1 



23.0 

 20.6 

 21.4 



95.0 



70.8 

 79.0 

 67.4 



7.7,104.7 

 7.0 101.3 

 5.1106.9 



9.4 



13.0 

 11.0 

 11.5 



7.3 

 10.0 

 9.9 



2.9 

 2.2 

 1.3 



11.2 



95 



107.8 

 8-1.4 



101.3 



120.6 

 103.2 

 118.8 



50.3 



93.4 123.9 

 84.5,124.3 

 79.4116.4 

 67.5120.7 



82. 5 102. 3 

 68.81 97.3 



72.0 



80.3 

 76.3 

 83.1 



45.0 



112.8 



102.0 

 102.4 

 66.8 



82.2 



Date 

 headed. 



66.4 July 11 

 65.9 July 10 



64.5 July 11 

 63.8 July 10 



61.3 Julv 11 

 54. 7| July 9 



61.8 July 11 



58. 9j July 15 



56.4 ...do 



52. 9,.. -do 



42.6 June 29 



Date 

 ripe. 



Aug. 4 



...do 



...do 



Aug. 3 

 Aug. 5 

 Aug. 2 



Aug. 5 



Aug. 9 

 ...do 



Aug. 6 



July 24 



To matur- 

 ity from— 



Days 

 102 

 102 

 102 

 102 

 103 

 101 



102 



107 

 107 

 106 



Days 

 24 

 25 

 24 

 24 

 25 

 24 



25 



Lbs. 

 26.1 

 27.7 

 30.7 

 32.0 

 29.7 

 30.7 



31.0 



30.4 

 30.9 

 29.3 



30.0 



