66 



MISSOURI AGR. EXP. STA. RESEARCH BULLETIN 49 



TABLE 37. RELATIVE VARIABILITY OF ACTUAL AND ADJUSTED YIELDS. 

 Average Deviation in Percentage of Yield. Oats Variety Test 1921 



Average deviation 



Planting Actual yields Adjusted yields 



number Variety (3 interior (3 interior rows) 



rows) (Kherson) (Red Rustproof) 



of the Red Rustproof check, but was slightly increased (2 per cent) 

 when the Kherson check was used. On the other hand, the variability 

 of the yields of the Kherson strains, though not reduced by either check, 

 was increased only 4 per cent by the Kherson check, while it was in- 

 creased 48 per cent by the Red Rustproof check. Neither check was 

 effective in adjusting the yields of the other varieties, the Kherson 



