CEREAL EXPERIMENTS ON THE CHEYENNE EXPERIMENT FARM. IEW 
were obtained, but there was very little fall growth. The plats of the 
Turkey wheat sown on September 1 and 15 gave the highest yields. 
With Ghirka Winter, the plats sown on September 1 and 15 and 
October 1 all yielded practically the same. The September 15 sow- 
ing gave slightly the highest yield. The results to date seem to indi- 
cate that early seeding (September 1 to 20) is to be preferred, pro- 
vided conditions are favorable to germination and fall growth. The 
farmers in this section practice early seeding when possible. 
TaBLE 1X.—Annual and average yields of the Turkey and Ghirka Winter wheats in a 
date-of-seeding test on the Cheyenne Experiment Farm in 1913, 1914, and 1915: 
Yield per acre. 
Average. 
Variety and date of 2 
seeding. 1913 1914 1915 
j 1913 to 1915 | 1914 and 1915 
Grain. | Straw. | Grain. | Straw. | Grain. Straw. | Grain. Straw. | Grain. | Straw. 
Turkey: i Bush. | Lbs. | Bush. | Lbs. | Bush. | Lbs. | Bush. | Lbs. | Bush. | Lbs. 
NGO TUG 5 RN eT 0 0 ZORGale ae 400M nao rose shee eee 14.8 1, 700 
SLOP O LF de a SI es Pe eee 6.8 | 1,145 SOLAS AGO! eee se ee 22.5 2, 802 
SIO ON Bs, US ha en 0 0 BSE Sena 4o0 ume eat ane oe ae 19.2 2,215 
Ociles rev ene 8.8 635 0 0 34.5 3, 140 14. 4 1, 258 fae 1,570 
ae nm ie iy eects 8.5 673 0 0 25.6 2, 220 11.4 964 12.8 1,110 
eee etic | 6.7 455 0 ON eet RAT oy are es ee |e ae eee | AO ee 
one Winter | 
ING Cae, GE Se Ae a 9 Ciel Sf." OAD MN (U3) [a Ne ps 13.5,| 1,485 
SSI Y ON ES Tes ae, Pet a | be at ag oe 7.8 910 29.3 SOSOn| see [eee Sed 18.6 PE PH 
SST TU aa Sa ee 2 Oe ae (Oe Oalmealersn |) -aeaaO cies Sri a 15.7 |, °2:070 
MO Cts Tene sk. 8. 4 505 0 | 0 30.1 3,070 1228 1tg2 15.0 1, 535 
Octali5 eee 8.4 545 0 | 0 7A 1, 690 8.5 745 8.5 845 
INOWerleters oc ere 6.1 390 Or | Oe Ee Sree eS rer k kek Dal OY oe eal ee 
| | 
SPRING WHEAT. 
Spring wheats are grown as extensively in eastern Wyoming as 
winter wheats. A greater number of varieties of spring wheat than 
of winter wheat have been tested at the Cheyenne Experiment Farm. 
Thirty-three varieties and strains have been included in the experi- 
ments during the three years, 1913, 1914, and 1915. The annual and 
average yields of these varieties are shown in Table X. 
These varieties may be divided into two classes, common and 
durum. These classes may be separated further into groups. 
Highteen of the varieties are common wheats and 15 are durum 
wheats. These two classes of wheat and the most important groups 
of each which are represented in the Great Plains area may be sepa- 
rated by the following descriptive key: * 
1Ball, C. R., and Clark, J. A. Varieties of hard spring wheat. U.S. Dept. Agr., Farmers’ Bul. 680, 
p. 6, 9,18. 1915. 
55650°—Bull. 480—16——3 
