58 INFLUENCE OF ENVIRONMENT ON SWEET CORN. 



equal to the highest; and for two out of the four years it made the 

 highest record with Stowell Evergree.ii. In 1907 and 1908, when 

 South Carolina stood third, it should be noted that Florida and 

 Maryland were the stations producing the^corn bearing the highest 

 sugar content, Connecticut being the lowest. The corn does not 

 make so vigorous a growth either in Florida or in South Carolina as 

 it does in Connecticut, but it is as strong as the Maine corn. Mary- 

 land corn was much more vigorous than that grown in Florida, South 

 Carolina, or Maine, but did not appear to equal the average Connec- 

 ticut corn in size of stalk. The kernels of southern-grown corn do 

 not present the same physical appearance as that of the northern- 

 grown corn, both the germ and the kernel being larger in the former. 



Referring to the summary of analyses of sweet corn for the four 

 years 1905, 1906, 1907, and 1908, it will be noticed that the sugar 

 content of the Crosby variety is, with a few exceptions, higher than 

 that of the Stowell Evergreen. This would be expected, as a high 

 sugar content is characteristic of the Crosby variety. 



Comparing the results of the individual years, the highest sugar 

 values are found in 1905 and the lowest in 1906, while in 1907 the 

 results compare more nearly with those of 1905, and the 1908 aver- 

 ages are between the two. The extremely high sugar content of the 

 corn grown at South Carolina in 1905 and the low percentage found 

 at New Jersey in 1905 and at Connecticut in 1908 are in all probabil- 

 ity due to the distribution of the rainfall. It will be remembered 

 that during the early stages of growth in New Jersey in 1905 such a 

 severe drought occurred that the Crosby variety of corn did not 

 reach the edible condition, and for a time it was thought that no 

 Stowell Evergreen would be secured, and at the Connecticut station 

 during August, 1908, during the period when the sugars are formed, 

 8.12 inches fell. During the growing season of 1906 the rainfall was 

 unusually heavy all along the Atlantic coast, and at each station the 

 average sugar content was below the average for 1905, 1907, and 

 1908. 



From the data collected, the amount, and more especially the dis- 

 tribution, of the rainfall appear to be the dominant factors, and a 

 closer interrelation seems to exist between the curves representing 

 rainfall and the percentage of sugar than between any of the other 

 curves. In substantiation of this point the rainfall by periods has 

 been platted for the four years in figures 7, 8, 9, 10, and 11. (For 

 detailed discussion see pages 62 to 67.) 



The summary of the work for the four years has been platted in 

 greater detail than for each year. The percentage of sugar is the 

 average of the Crosby and the Stowell Evergreen for the four years. 

 At the New Jersey station the data for one year are given, and at the 



