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In order to learn what varieties succeed best in the South, 

 a compilation was made of all published tests conducted at 

 the Agricultural Experiment Stations in the Gulf States, 

 Arkansas, Georgia and South Carolina. Since no one 

 variety entered into all of these tests, it was impossible to 

 use any one variety as a standard of comparison. To make 

 comparisons possible the average of the yields of all varie- 

 ties in each test was calculated and this average yield was 

 taken as 100 ; any variety yielding more than the average 

 in a certain test was given its proportional grade above 100, 

 and any variety falling below the average was given a rating 

 correspondingly below 100. 



By averaging all relative yields calculated as above for 

 each variety, a figure is obtained for each variety which is 

 more satisfactory than is the result of a single test. 



In making this compilation calculations were made for 

 nearly 700 tests with 260 varieties. The greater the num- 

 ber of experiments into which a given variety enters the 

 more reliable is the average yield for that variety. The list 

 given below contains the average for only such varieties as 

 have each been tested five or more times, and the varieties 

 are arranged in the order of productiveness : 



