14 



BULLETIN 430, U. S. DEPARTMENT OP AGRICULTURE. 



the summer of 1914. The stands obtauied and growth made before 

 winter were good. The whiter survival was high. The seasonal 

 rainfall was considerably above normal, while the temperature was 

 below normal durmg the growing season. The varieties yielded 

 very well in 1915, as is shown in Table VI. 



Table VII shows the agronomic data for seven varieties of winter 

 wheat grown at Archer in the three years 1913,1914, and 1915. These 

 data include average dates of heading and maturity, height, weight 

 per bushel, yield of grain and of straw, and ratio of grain to straw. 

 The weight per bushel is for the two years 1914 and 1915. The 

 weight per bushel was low in 1914, the grain being shrunken. The 

 highest average yield, 18.2 bushels per acre, was produced by the 



su /^£-/9 y^c:/?£: 





\/&.6- 



C-/?/Af^/^A^, c:/.A/.''/SSS I 

 C/?/Af£-/9A^,C./.A/?/^3S I 



C/r'/Af£'/^N, C./.A'°/^37' 



Fig. 6.— Diagram showing the average yields of seven varieties of winter wheat on the Cheyenne 

 Experiment Farm, 1913 to 1915, inclusive. 



Ghirka Winter wheat (C. I. No. 1438). The lowest average yield, 

 15.6 bushels, was obtained from the Crimean (C. I. No. 1437). The 

 ratio of grain to straw was lowest for Ghirka Winter and highest for 

 Crimean (C. I. No. 1432). The average ratio for the seven varieties 

 is about 1:2. In figure 6 the yields of the seven varieties of winter 

 wheat grown at Archer from 1913 to 1915, inclusive, are shown 

 graphically. 



Table VII. — Average date of heading and maturity, height, weight per bushel, yields, 

 and ratio of grain to strato of seven varieties of winter wheat grown on the Cheyenne 

 Experiment Farm, 1913 to 1915, inclusive. 



Group and variety. 



CI. 

 No. 



Dates of — 



Height. 



Weight 



per 

 bushel.i 



Yield per acre. 



Ratio, 

 grain to 

 straw. 



Heading. 



Maturity. 



Grain. 



Straw. 



Ghirka: 



Ghirka Winter 



1438 



1442 

 1559 

 1432 

 1571 

 2908 

 1437 



June 29 



...do.... 

 .do 



July 28 



July 26 

 ...do. . .. 



Inches. 

 27 



28 

 28 

 26 

 28 

 130 

 27 



Pounds. 

 61 



58 



60 



60.5 



60 



62 



58.5 



Bush. 

 18.2 



17.2 

 17.2 

 16.8 

 16.6 

 16.0 

 15.6 



Pounds. 

 2,018 



2,170 

 1,847 

 2,463 

 2,040 

 1,769 

 1,804 



1:1.85 



Crimean: 



Kharkof 



1:2.10 



Crimean . . 



I 

 1 



1 79 



Do 



Turkey 



July 2 

 June 29 

 1 July 2 

 June 29 



July 30 

 July 26 

 1 July 31 

 July 27 



2.44 

 9, 05 



Malakoff 



1.84 

 1 93 









I Average for two years. 



