CEREAL EXPERIMENTS ON THE CHEYENNE EXPERIMENT FARM. 27 
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TasBLE XVI.—Annual and average yields of 15 varieties of spring oats grown on the 
Chey eae Expervment Farm in 1913, 1914, and 1915, 
Yield per acre (bushels). 
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Group and variety. CAlEyNo: s 
~ year 
1913 1914 @ 1915 average. 
Early: : 
SSID; {yal Deehyye Sauces leh ra S rR a SUL NRC ee aS 165 |. 15.8 25.6 b 29.9 23.7 
[KGIVERS@ MEME Se re ce Ne MR VE Mee UR bon 459 € 12.5 € 27.5 b 29.3 BY L 
TEGRETOL SRN A mips SONS EO Nei hee ee ae an 170 118356) 24.5 b 26.5 Dies 
Midseason: 
Sime Gislay Selec G tee he es re aides yy olay Sigoey, a NN) 134 10.0 26.7 eA 29.6 
CLOT AC OMNO Ripe ere ee ar eyecare Sem cieve ale ei 619 1.2 24.7 oleo 27.8 
LANE ONTOS eas SUP ERY I PSR ra a ee ee) 492 10.5 23.6 48.7 27.6 
STK VOTHAIT Opartectta em atianen sy SC e oct re cee Na 714 Ibe 3} 22.5 47.2 27.0 
PAUL yi CT CO Aes rN ze ie 0st heh head Ui ho Nb 731 Ge® 20.3 52.4 26.7 
ODS LCI Orme ue eh crn eentit = Wants Wises kit metal tie N 495 12.2 22.5 45.0 26.5 
SiO eTed UTM ede ee ease neh tar se re I Nt ay ta Li Yaya a Ta 741 bed 21.3 47.2 PEST 
ACTIN CO Laan ee A Re any Meats NNN TIS OCS Mi i Bi 738 5.0 21.3 45.0 PB. Th 
INE GT OTT aN pavers on eam He a I a Ee Eo 767 8.3 19.7 39.3 22) 4 
SOMA Ta qa y pee mera scope Ne nea as a ANS at chsh nr tur 769 7.8 21.4 Bol! 20.7 
TSH AWAY S ea tie aceite AE OTD Ne eaeR ep NC. ed tess re a 732 5.8 13.9 32.4 Ware 
Late: ; 
TBi be yolk 4 Mew etsy rately ote erate OCA TSG see eet ie ioe ne a 768 .8 18.8 41.5 2255 
‘a Average of 2 twentieth-acre plats. ec Average of 6 tenth-acre check plats. 
6 Damaged about 30 per cent by hail. 
Oat varieties are usually grouped into early, midseason, and late 
varieties. In Table XVII are presented the average data on dates 
Fig. 10.—A plat of oats on spring plowing on the Cheyenne Experiment Farm in 1915. (Photograph 
lent by the Office of Dry-Land Agriculture Investigations.) 
of heading and maturity, height, weight per bushel, yield per acre, 
and ratio of grain to straw for the leading varieties of each group at 
Archer during the 3-year period, 1913 to 1915, inclusive. 
The early varieties gave better yields in 1913 and 1914 than the 
midseason or late varieties. In 1915, however, the midseason 
varieties gave the highest yields, the early varieties being damaged 
by hail. The average yields for three years show the midseason 
