26 



BULLETIN 823, V. S. DEPARTMENT OF AGKICXJLTURE. 



Results in lowa.i 



The annual and average 

 and thirteen other varieties 

 tural Experiment Station 

 United States Department 



Fig. 6.— Panicle and spikelets of an early- 

 white variety of oats, Early Champion. 



yields of five strains of early yeUow 

 of oats grown at the Iowa Agricul- 

 at Ames in cooperation with the 

 of Agriculture during three or more 

 years in the 11-year period from 1907 

 to 1917, inclusive, are presented in 

 Table XVII. 



The data presented in Table XVII 

 indicate that the early yellow varie- 

 ties, Kherson, Sixty-Day, and selec- 

 tions from them, are the most de- 

 pendable for Iowa conditions. The 

 average yield of the original Kher- 

 son in the 11-year period from 1907 

 to 1917, inclusive, is 52.9 bushels, as 

 compared with similar averages of 

 62.4 and 52.2 bushels for Myrick and 

 Silvermine, respectively, the two 

 highest yielding midseason varieties. 

 However, since 1911 Richland, a se- 

 lection from Kherson, has consist- 

 ently outyielded all others. In- the 

 7-year period from. 1911 to 1916, in- 

 clusive, this selection has exceeded 

 the original Kherson by 4.8 bushels, 

 and the Silvermine, its nearest com- 

 petitor of the midseason varieties, 

 by 2.9 bushels in average yield per 

 acre. Albion, a white selection from 

 Kherson, has not been as promis- 

 ing at Ames under central Iowa con- 

 ditions, but is much more popular with 

 farmers. A panicle and spikelets of 

 Early Champion, an early white oat, 

 are shown in figure 6. 



1 Data obtained cooperatively by the Iowa Agricultural Experiment Station and the Bureau of Plant 

 Industry. Data for 1907 published in Iowa Agr. Exp. Sta. Bui. 96, entitled "Oats, Varieties, Seed, 

 Smut, Seedbed, Seeding," by M. L. Bowman and L. 0. Burnett, 1908; for 1908 to 1910, inclusive, pub- 

 lished in Iowa Agr. Exp. Sta. Bui. 128, entitled "Some Data lor Oat Growersr" by L. C. Burnett, 

 1912; for 1911 and succeeding years, compiled from unpublished annual reports of L. C. Burnett, agent, 

 to the Office of Cereal Investigations. 



