22 



BULLETIISr 430, IT. S, DEPARTMENT OF AGRICULTURE. 



Table XII. — Annual and average yields of 11 spring common wheats from Minnesota 

 grown on the Cheyenne Experiment Farm in 191S, 1914, and 1915. 



Group and variety. 



Preston: 



Velvet Chaff. 

 Fife: 



Glyndon 



Do 



McKendry... 



Do 



Power 



Do 



Rysting 



Wellman 



Bluestem: 



Bolton 



Haynes 



C.I. 



No. 



4153 



4143 

 4146 

 4147 

 4152 

 4150 

 4151 

 4148 

 4144 



4142 



4145 



Minn. 

 No. 



1011 



163 

 285 

 288 

 903 

 886 

 899 

 476 

 165 



146 

 169 



Yield per acre (bushels). 



1913 



2.0 

 1.5 

 4.0 

 2.5 

 .4 

 1.3 

 2.2 

 3.0 



.6 

 .6 



1914 



6.9 



3.7 

 4.1 



07. 3 

 4.2 



08.3 

 4.6 

 4.1 

 7.0 



4.6 

 »9.5 



1915 



15.0 



9.3 

 10.3 



9.7 

 10.7 



9.3 

 11.0 

 10.3 

 12.7 



10.0 

 11.3 



3-year 



5.0 

 5.3 

 7.0 

 5.8 

 6.0 

 5.6 

 5.5 

 7.6 



5.1 

 7.1 



o Damaged by haU. 



The leading varieties of durum wheat at Archer belong to the 

 Kubanka group. This group of durums has broad heads with long, 

 pale awns, yellowish, glabrous glumes, and large, hard, amber ker- 

 nels. The Beloturka, Kubanka, and Pererodka varieties have given 

 the highest average yields. 



The spring common wheats grown at Archer are divided into four 

 groups. The Preston group has bearded heads, white glabrous 

 glumes, and hard red kernels. The Fife group has beardless heads, 

 white glabrous glumes, and hard red kernels. The bluestem group 

 has beardless heads, white pubescent glumes, and hard red kernels. 

 The unclassified group includes some varieties which do not belong 

 in any of the three groups just described. The Galgalos variety has 

 a beardless head, brown pubescent glumes, and large soft white ker- 

 nels. The Defiance has a beardless head, white glabrous glumes, and 

 soft white kernels. The leading varieties in each of these groups are 

 shown in Table XI. 



RATE-OF-SEEDING EXPERIMENT. 



A rate-of-seeding experiment with Arnautka durum wheat has 

 been conducted at the Cheyenne Experiment Farm for three years, 

 1913 to 1915, inclusive. The annual and average yields obtained 

 are shown in Table XIII. 



In 1913 the rate-of-seeding test was sown in tenth-acre plats on 

 breaking. Good stands were obtained from all rates. The highest 

 yield was obtained from the 2-peck rate. 



In 1914 the rate-of-seeding test was sown in tenth-acre plats on 

 fallow land that had been spring plowed. Good stands were ob- 

 tained. The highest yield was produced on the plat sown at the 

 rate of 4 pecks per acre. 



In 1915 the rate-of-seeding test was sown in duplicate twentieth- 

 acre plats on double-disked corn ground. The highest yield was ob- 



