184 



THE SMALL GRAINS 



station, in a 7-years test, the average acre yield for 

 heavy seed oats was 46.3 bushels, for common seed 44.8 

 bushels, and for light seed 42.6 bushels. In a similar 

 9-years test with wheat, little or no difference resulted in 

 favor of the heavy or large kernels. In both these series 

 of experiments the same weight of each grade of seed 

 was sown to a unit area. In a report on some investi- 

 gations of methods of improving the quality of wheat, 

 Lyon (1905, p. 75) states that after the first year, light 

 seed wheat, sown at the same rate to the acre (1 J bushels) 

 as heavy seed, gave yields of grain each year more nearly 

 approaching that from heavy seed, until in 3 or 4 years 

 there was little difference in yield. Also after the first 

 year the light seed produced a larger quantity of protein 

 to the acre than the heavy seed. 



183. Large and small seed. More striking results 

 were obtained by Zavitz (1910, pp. 98-104) at the On- 

 tario station, where the grading was done by size instead 

 of weight. They are best given tabulated as follows : 



TABLE I. RESULTS OF THE SELECTION OF LARGE AND SMALL SEED 

 AT THE ONTARIO STATION 



