TESTS OE COBN VARIETIES OH THE GREAT PLAINS. 



15 



varieties are not sufficiently large to indicate the superiority of any 

 one of them. White Australian has occupied a very high rank in 

 the years in which it has been grown. It should be given further 

 trial as a corn for hogging off. 



TESTS AT NORTH PLATTE. 



The results of only one year are available from the station at North 

 Platte, Nebr. The tests were made on dry land. Plantings were 

 made in 1912, 1913, and 1914. In 1913 and 1914 the drought injury- 

 was so severe that yield records were not made. The variety units 

 were made up of plats 175 feet long and 7 feet wide, making an area 

 of about one thirty-fifth of an acre, and each plat contained two rows. 

 The variety plats were alternated with check plats, all planted to the 

 same variety. The series was grown in duplicate. 



The yields in pounds of ears of each plat and the total pounds of 

 ears produced by the two plats of each variety are shown in Table V. 

 In the total column, the yields of the check plats are combined by 

 twos in the same order as the plats of the different varieties. 



Actual and corrected yields per acre and the rank and class of 

 each variety are shown in the summary. The corrected yields are 

 secured by decreasing or increasing the actual average yield of the 

 two plats of each variety by the amount the average yield of the four 

 adjacent check plats exceeds or falls below the average yield of all 

 check plats. The rankings are according to corrected yields. 



Table V.- 



Yield of corn varieties grown at North Platte, Nebr., on dry land, by plats, 

 in 1912. 



Variety. 



Plat 

 No. 



Yield 

 of ears. 



Plat 



No. 



Yield 

 of ears. 



Total. 





1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 



10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 



Pounds. 



111.4 

 96.7 

 97.9 

 91.9 



103.9 

 73.8 



107.0 

 80.4 

 95.7 

 81.2 

 92.3 

 96.9 

 78.4 

 83.3 

 87.4 

 86.0 

 85.8 

 68. 6 

 88.8 

 82. 6 



101.7 

 83.8 



104.6 

 79.0 

 88. 1 

 59. 4 

 78. 3 



28 

 29 

 30 

 31 

 32 

 33 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 42 

 43 

 44 

 45 

 46 

 47 

 48 

 49 

 50 

 61 

 52 

 53 

 .5 1 



Pounds. 

 89.9 

 89.1 

 99.4 

 88.2 

 85.2 

 45.0 

 73.8 

 58.0 

 66.3 

 69.3 

 69.3 

 71.0 

 66. 1 

 75.9 

 78.7 

 88.5 

 81.4 

 79.6 

 79.8 

 ' 84.7 

 87.3 

 83. 8 

 79.8 

 73. I 

 76. 8 

 66.9 



82.1 



Pounds. 

 301.3 





185.8 





197.3 





174.1 





189.1 



Reid* Yellow Dent 



118.8 





180.8 





138.4 





162.0 





150.5 





161.6 





167.9 





144.8 



North Platte Sil .'t iSixxe 



159.2 





166. 1 





174.5 



!.i in Calico 



167.2 





148.2 



Not iii Platte Calico 



167. 6 



North Platte <':iii<-'i 



Ii ction 133 



167.3 



188.7 

 167. 6 



North P'atte Calico 



184.4 



In 7 



152.1 



(forth Platte Calico 



164.9 



ection 160 



1 1 6. 3 





160.4 







