64 



KANSAS ACADEMY OF SCIENCE. 



PROGRESS IN THE PRODUCTION OF HIGH-PROTEIN CORN. 



By J. T. WiLLAED and R. H. Shaw, Kansas State Agricultural College, Manhattan. 

 Read before the Academy, at Manhattan, November 27, 1903. 



IN previous papers the author has presented some of the results ob- 

 tained at the Kansas State Agricultural College Experiment Sta- 

 tion in analyses of corn incident to efforts to obtain varieties 

 containing higher percentages of protein than the analyses known at 

 present. This paper vpill include most of the analyses made of corn 

 grown in 1902. The results previous to that year have been pub- 

 lished in bulletin No. 107 of the Experiment Station, and the num- 

 bers given to the different samples are the same as those used in that 

 bulletin. 



The samples are the progeny of crosses made in 1898 among a con- 

 siderable number of varieties supposed to be superior. The policy 

 has been to reject each year all showing less than two per cent, of 

 nitrogen. As average corn contains but 1.84 per cent, of nitrogen 

 the minimum in that which we have propagated would be about ten 

 per cent, above the average. The following table shows the per- 

 centages of nitrogen in the corn from individual ears analyzed in all 

 but one variety, which was unexpectedly inferior, and has not been 

 included. 



The above table includes all of the analyses made in each case, and 

 even a cursory examination will show the great superiority of many 

 of the varieties over average corn. Of the 162 ears, only twenty were 

 below 1.84 per cent, of nitrogen, and only fifty-one were below two 

 per cent, of nitrogen. With a number of varieties none of the ears 



