l82 MAINE AGRICULTURAL EXPERIMENT STATION. I9I4. 



Lincoln. Further it has shown very little variation in the two 

 years. Its coefficient of variation, 4.11 percent, is practically 

 the same as that of the imported Scotch for the four year 

 period. All that can be said at present is that this is a very 

 promising variety for our conditions. 



A number of these varieties have averaged to yield very 

 poorly. Four show an average yield of only about 50 bushels. 

 Two of these varieties, the Early Champion and Danish Island, 

 have been dropped from the test. The remaining two will be 

 continued for comparative purposes. 



Yield of Straw. 



Varieties of oats differ widely in the amount of straw pro- 

 duced from a given area. Further there is a great difference 

 in the relation of the amount of straw to the amount of grain. 

 The most marked differences in the yield of straw are between 

 the early and late varieties. While in many cases the early 

 varieties are able to equal the later ones in the yield of grain 

 they show a much smaller yield of straw. In the following 

 paragraphs the average yield of straw for the varieties tested 

 four years will be discussed. The data relative to the straw 

 yield of the other varieties are given in Tables 3 to 6, but will 

 not be discussed farther in this bulletin. 



The data relative to the yield of straw of the eleven varieties 

 tested for four years are given in Table 11. The means, stand- 

 ard deviations and coefficients of variation have been determined 

 for each variety. This table also shows the number of pounds 

 of straw produced for each pound of grain for the averages of 

 the four years. 



