14 BULLETIN 430, U. S. DEPARTMENT OF AGRICULTURE. 
the summer of 1914. The stands obtained and growth made before 
winter were good. The winter survival was: high. The seasonal 
rainfall was considerably above normal, while the temperature was 
below normal during 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 
BY PLEFPACAE 
CHirkh,c v/s FZZzZ_ ss = 
percabetov, CL.2/7 2 rere = 
CRIMEAN, C1 2/559 SD 5 
CRIMEAN, C/ V2732 I 5 
TOPAEY; CL. M25 77 : 
MWh OC N29 ns 5:0 
OIMEAN, CINE” eS 
Fic. 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, imclusive, are shown 
graphically. 
TaBLeE VII.—Average date of heading and maturity, height, weight per bushel, yields, 
and ratio of grain to straw of seven varieties of winter wheat grown on the Cheyenne 
Experiment Farm, 1913 to 1915, inclusive. 
Dates of— Weight | | Yield per acre. Rati 
| io, 
Group and variety. e - = ne | eight: eee grain to 
Heading. Maturity. bushe | Grain. | Straw. straw. 
Ghirka: | Inches.| Pounds. | Bush. Soren 
Ghirka Winter.--..--.-.- 1438 | Jane 29 a July 28 27 6l | 18.2) 2,018 1:1. 85 
Crimean: 
Metinr Kain ests a eee 1442 |...do. July 26 28 58° nlf, oil aoa 1:2. 10 
Craneanp ees... 2. Fo: 1559 | .-do. Bi tris tes 28 60 17.2) 1,847 1:1. 79 
LDCS SOC abe eae Seana 2 1432 | ' July i | Tuly 30 | 26 60.5 16.8 | 2,463 1:2.44 
Mate y Pee ee LS 1571 | June 29 | July 26 28 60 16.6 | 2,040 1:2. 05 
iMalaK Of mee Sete Ase 2908 |1 July 2 /|1July 31 130 | 62 16.0} 1,769 1:1. 84 
Grimeaneses Sees aes S2 2 1437 | June 29 | July 27 27 | 58.5 15.6 | 1,804 1:1. 93 
1 Average for two years. 
