CEREAL EXPERIMENTS AT THE AKRON FIELD STATION. 



27 



The data in Table XVIII show that the difference in date of 

 maturity between the early and midseason and between the mid- 

 season and late groups is about 10 days. The varieties in the early 

 group mature about July 20, those of the midseason group about 

 July 31, and those of the late group about August 9. There is an in- 

 crease of about 500 pounds per acre in the straw yield of each suc- 

 cessively later group. As oat straw has considerable feeding value 

 this should be taken into account. Considering yields of both grain 

 and straw, the midseason variety, Colorado No. 37 (C. I. No. 619), 

 has given the best returns during the period. 



NURSERY EXPERIMENTS. 



A total of 61 varieties and several hundred strains have been 

 tested in nursery rows. The varieties that have shown promise have 

 been advanced to the field tests. With the exception of Sixty-Day 

 4P2, they have not proved worthy of continued trial and have 



20 2S 30 



3S ^O 



4S 



















f4 7 BU. 



3.9 OU 

 BO 



*^* 









"^" 





™^* 



















■HBO HD "^ 



^^" 









"^'''*' 























34. a BO. 



1 



^^^ 









^^^* 





^^^B 



COlO/f/^OO /Vo37 



svy^asM <xc£CT 

 LATE- 



Fig. 8.— Diagram showing the average yields of the leading varieties of oats at the Akron Field Station, 



1908 to 1915, inclusive. 



been discarded. The nursery tests have served to ehminate a large 

 quantity of material not adapted to the conditions at Akron. The 

 results are of a negative rather than a positive nature. 



RATE-OF-SEEDING EXPERIMENTS. 



An experiment was begun in 1911 to investigate the effect of rate 

 of seeding on the yield per acre of oats. The Kherson variety (C. I. 

 No. 459) has been used. Table XIX shows the annual and average 

 yields obtained during the five years. 



Table XIX. — Annual and average yields of Kherson oats in a rate-of-seeding test at the 

 Akron Field Station,, Akron, Colo., 1911 to 1915, inclusive. 









Yield 



per acre (bushels). 



Rate of seeling per acre. 



1911 



1912 



1913 



1914 



1915 



Average. 





1911 to 

 1915 



1912 to 

 1915 





G.9 

 10. C. 



i:',. 1 

 13. 8 



4fi.9 

 (11.7 

 40. 

 43.1 

 71.9 



30. 



23. 1 

 40. 

 2r,. 

 18.2 



74.4 

 71.8 

 84.4 

 ().'"). 

 73.8 



85. 

 80. 9 

 87. 5 

 90. 

 90. 



52.1 

 50. 8 

 53. 1 

 47.4 



69.1 



rj r»w;ks 



4 l)W;k.H 



60.9 

 63.1 



55. 7 





03.(1 











