EXPERIMENTS WITH KHERSON AND SIXTY-DAY OATS. 



47 



Table XXXVT. — Annual and average, yields of three strains of the Kherson, one strain 

 of the Sixty-Day, and five other varieUes of oats groum at the Cheyenne Experiment Farm, 

 Archer, Wyo., in the 5-year period from 1913 to 1917, inclusive. 



[Experiments conducted in cooperation wilh tlic Wyoming State Board of Farm Commissioners.] 



r.roup and variety. 



C. I. No. 



Yield per acre (bushels). 



1913 



1914 



1915 



1916 



1917 



Average. 



Early yellow: 



105 

 459 



729 

 7,s7 



495 



i:m 

 492 

 619 



768 



15.8 

 2 12.5 



2.5.6 

 2 27.5 



129.9 

 129.3 



9.6 



9.9 



35.0 



9.0 



6.3 



7.7 

 8.6 

 6.3 



4.9 



27.4 

 27.1 

 2.5.7 

 27.0 



32.0 



35.3 

 40.3 

 38.1 



31.3 



21.7 



Jvherson 



21.3 



AIi)ion(IowaNo. 103, white) 



Kichland (Iowa No. 105) 













Midseason yellow: 



Probstcicr 



12.2 



10.0 

 10.5 

 7.2 



7.8 



22.5 



26.7 

 23.6 

 24.7 



18.8 



45.0 



62.1 



48.7 

 51.5 



41.5 



23.6 



Midseason white: 



.Swedish Select 



26.4 



Ligov\o 



26.3 



Colorado No. 37 



25.6 



Late l)lack (side): 



Black Tartarian 



20.9 







1 Damaged about 30 per cent by hail. 2 Average of six tenth-acre cheek plats. 



'■> Not comparable. A poor stand occurred, due to poor germination. 



Table XXXVI shows that the three varieties classed as midseason 

 white have outyielded the Sixty-Day and the Kherson. The best 

 midseason white oat, Swedish Select, has outyielded the Kierson by 

 4.7 bushels. The Probsteier, a midseason yellow variety, also has 

 outyielded both the Sixty-Day and the Kherson by about 2 bushels. 



Although these tests have not been of sufficient duration to be 

 conclusive, the evidence indicates that in this section of the Great 

 Plains the midseason white varieties generally will outyield the 

 Kherson and Sixty-Day and therefore are to be recommended. 



Results in Colorado. i 



Kherson and Sixty-Day oats have been included in the varietal 

 experiments at the Akron (Colo.) Field Station since they were begun 

 in 1908. The annual and average yields of these two varieties, three 

 selections from them, and five other varieties of oats grown in one 

 or more years in the 10-year period from 1908 to 1917, inclusive, are 

 presented in Table XXXVII. 



The data shown in Table XXXVII indicate that there is httle 

 choice at Akron between the Kherson and Sixty-Day and the mid- 

 season white varieties, Colorado No. 37 and Swedish Select. The 

 Kherson has outyielded the Colorado No. 37 by a little more than 

 2 bushels, but the Sixty-Day has faUen below both the Colorado 

 No. 37 and the Swedish Select by about the same quantity. A 

 comparison of the yields for the years 1912 to 1917 shows that Burt, 

 an early red oat, has slightly outyielded the Ivherson. In this period 



1 The results obtained in 1915 and previous years were reported in U. S. Department of Agriculture 

 Bulletin 402 (25). Later data are compiled from unpublished annual reports of Mr. George A. McMurdo, 

 formerly scientific assistant in charge of cereal experiments at the Akron Field Station (1918) and Mr. 

 F. A. CoffmaUr now scientific assistant in charge at Akron, to the Office of Cereal Investigations. 



