CEREAL EXPERIMENTS AT THE AKRON FIELD STATION. 93 
TABLE XV.—Annual and average yields of durum wheat in a rate-of-seeding test at the 
Akron Field Station, Akron, Colo., 1911 to 1915, inclusive. 
Yield per acre (bushels). 
Rate of seeding (per acre). Average. 
1911 1912 1913 1914 1915 
1911 to | 1912 to 
1915. 1915. 
ATO CARE REA SRE AAA m Set AE See ree as Ee 9.9 A1.0 7.3 18.0 30.0 21.2 24.1 
3) OCS EN els Sd Mes ei ea a 9.8 37.3 8.6 19.6 29.5 21.0 2397 
AOC Gabe ae wae SOE see a aaa ome LOSI B70 1 e110: 20) 0) 1s, 29.5 1) pot 7 24.4 
EDC CKS ene aie Sp Le AS al pelted Coane ASS ek RS. Bh 12.6 30.3 11.6 22.0 29.5 21.2 23.3 
SEOs St ee ees ey os 2 Se ee apg [See ge 28.3 11.2 21.3 BOL Qi ese ate 22 
ESOC Ser Ree its re ee cis sre cae SSSA eS 27.0 1B ECS Wea 4 Ui Re amie se tear eats [eats yt 
COMPARISON OF WINTER AND SPRING WHEAT. 
It is of importance to know whether. winter or spring wheat will 
give the best returns. Table XVI shows the annual and average 
yields of nine varieties of winter and spring wheat grown on the 
YIELD PER ACRE. 
re) S 1S 20 25 
WINTER: 
CRIMIEAN 
HHARKOV 
GH/IRKA WINTER 
SPAING - 
ARNAUTHA 
PELISS/IEP 
GH/RKA SPRING 
ERIVAIV 
GALGALOS 
Fic. 6.—Diagram showing the average yields of the leading varieties of wheat at the Akron Field Station, 
1908 to 1915, inclusive. 
Akron Field Station during the eight years, 1908 to 1915, inclusive. 
Figure 6 shows the average yields in graphic form. 
TaBLeE XVI.—Annual and average yields of nine varieties of wheat grown at the Akron 
Field Station, Akron, Colo., during the 8-year period, 1908 to 1915, wmclusive. 
Yield per acre (bushels). 
Variety. reac 
P 8-year 
1908 1909 1910 1911 1912 1913 1914 O15 average. 
Winter varieties: 
Crimean. ....... 1436 19.1 0 38.3 17.9 33.1 12.6 28.3 26.6 22.0 
Kharkof. . 1583 19.3 0 29.8 14.2 37.5 16.6 25.9 29.2 21.6 
Ghirka Winter. . 1438 15.6 0 38.5 15.8 38.3 17.3 24.0 22.8 21.5 
Spring varieties: 
Armattka.....-- { rae \ ASHTAVtnInS iI) 19. Sal 1507. | 137231), 10610, 25.0'| 2761 12406 
Pelissier.....---- 1584 24.7 23.6 15.8 10.6 35.6 10.5 26.6 31.6 22.4 
Arnautka...-.-.- 1493 26.9 20.8 16.6 10.6 P Hite) 10.5 27.6 27.6 21.1 
Galgalos. - 2398 21.8 19.8 20.5 19.6 20.5 14.1 PA Ver7f 24.4 20.3 
Ghirka Spring. . 1517 20.6 23.8 18.8 8.5 2343 11.6 19.3 22.6 18.6 
IBTIV AS S05. 50 28 2397 19.3 26.3 15.2 11.9 20.7 12.0 19.3 19.5 18.0 
