112 MAINS AGRICULTURAL EXPERIMENT STATION. I916. 



varieties are represented by a large number of lines. These 

 varieties are the Banner, President, Irish Victor and Regen- 

 erated Swedish Select. It will further be noted that the ma- 

 jority of the Swedish Select lines are near the bottom of the 

 table, indicating relative low yield. 



Work in 1913. 



In 19 1 3 each of the 34 lines given in Table 2 were grown in 

 one or more 1-40 acre plots. These plots were located in ihe 

 field with the plots of the commercial varieties for that year. 

 For a description of the soil, methods of seeding, harvesting, 

 etc., the reader is referred to the earlier paper by Surface and 

 Barber. 9 In each of the three years, 1913 to 191 5, in which 

 these pure lines have been tested in field plots, they have been 

 grown in the same field and treated in exactly the same manner 

 as the plots of the commercial varieties. In 1913 the pure line 

 plots were grown all together along one side of the field. In 

 the two other years the pure line plots have alternated with 

 the plots of the commercial varieties. 10 



In 1913 there was not enough seed from many of these lines 

 to plant more than a single plot. Table 3 gives the detailed 

 results for each pure line. 



From this table it will be noted that individual plots yielded 

 from 83 to 46 bushels per acre. Four plots yielded above 80 

 bushels and 10 plots between 70 and 80 bushels per acre. 

 Seven lines with two or more plots gave an average yield of 70 

 bushels or more. 



"Surface, F. M. and Barber, C. W. Studies on Oat Breeding. I. 

 Variety Tests 1910-1913. Maine Agr. Expt. Stat. Ann. Rept. 1914, pp. 

 137-192. (Bulletin No. 229). 



"Owing to the fact that the field on which these plots were grown 

 was quite irregular in shape, the method of obtaining corrected yields 

 described on page 114 cannot readily be applied to these plots. For this 

 reason the discussion of the 1913 results is based on the observed yields 

 only. 



