26 



BULLETIN 102, IT. S. DEPARTMENT OF AGRICULTURE. 



RELATION TO GERMINATION AND SOUND KERNELS. 



Table XII shows a comparison of the degree of acidity with the 

 percentage of germination and the percentage of sound corn (ex- 

 clusive of broken kernels). The monthly averages of these three 

 factors are shown for each grade. Examination of this table will 

 also reveal a consistent decrease in trie percentage of sound corn and 

 the percentage of germination from the high to the lower grades and 

 a corresponding consistent increase in the degree of acidity. 



Table XII. — Relation of the percentage of sound corn, the percentage of germination, 

 and the degree of acidity to the commercial grades, by months, from December, 1911, to 

 May, 1913, inclusive. 



Year and 

 month. 



Grade. 



Number of samples. 



Sound 

 corn. 



Germi- 

 nation. 





Sound 

 corn. 



Germi- 

 nation. 



Acidity. 



Acidity. 



1911. 



(No.3 



18 

 120 

 38 



68 

 145 

 22 



34 

 123 



28 



59 

 112 

 15 



6 

 43 

 99 

 26 



39 

 117 

 78 

 43 



38 

 116 

 67 

 10 



59 

 66 

 34 



8 



34 

 65 

 34 

 3 



20 



41 



35 



2 



17 



61 



18 



1 



5 

 43 

 97 

 34 



16 

 112 

 28 



62 

 133 

 21 



31 



• 108 

 28 



56 



108 



13 



6 

 43 

 99 

 26 



39 

 116 

 75 

 41 



37 

 111 

 65 

 10 



59 



64 



34 



8 



34 



60 



32 



3 



20 



40 



34 



2 



17 



60 



18 



1 



5 

 43 

 97 

 34 



12 

 110 

 27 



65 

 134 

 21 



31 

 111 

 28 



59 

 112 

 14 



6 

 43 



99 

 26 



39 



117 

 78 

 43 



38 

 114 

 67 

 10 



59 



66 



34 



8 



34 



65 



34 



3 



20 

 41 

 35 

 2 



17 



61 



18 



1 



5 

 43 

 97 

 34 



Per cent. 

 93.8 

 91.2 



89.6 



91.9 

 90.8 



86.6 



91.4 

 91.3 



83.4 



90.8 

 90.1 



77.6 



91.9 

 89.3 

 87.2 

 55.0 



S9.8 

 86.3 

 7S.9 

 56.3 



90.6 

 88.4 

 82.8 

 68.6 



90.4 

 87.0 

 80.1 



78.9 



90.1 

 88.4 

 82.2 

 83.4 



91.8 



88.3 

 81.4 

 70.0 



92.1 



87.5 

 81.7 

 6.0 



91.0 

 91.1 



90.8 

 86.1 



Per cent. 

 76.1 

 68.8 

 56.3 



75.3 

 64.4 

 39.5 



57.9 

 46.7 



18.5 



62.0 

 41.1 



9.7 



63.3 

 54.8 

 45.5 

 17.5 



45.4 

 41.3 

 25.1 

 20.6 



47.6 

 41.3 

 28.2 

 17.4 



44.4 



40.5 



20.8 



6.5 



43.7 

 40.2 

 26.8 

 33.3 



29.2 

 31.2 

 22.6 

 1S.0 



48.5 

 38.0 

 41.1 

 



37.2 

 67.4 

 75.4 

 68.4 



C.c. 

 19.7 





No. 4 



19.7 





[Sample 



22.3 



1912. 



[No. 3 



17.0 



January 



{No. 4 



17.6 



(.Sample 



19.2 





(No.3 



17. S 



February 



^No.4 



17.2 



[Sample 



19.9 





[No. 3 



16.9 





{No. 4 



17.5 





[Sample 



22.3 





(No. 2 



14. S 





jNo.3 



16.4 





INo. 4 



17.5 







[Sample 



25.9 





fNo. 2 



17.5 





JNo.3 



18.4 



May 



(No 4 



20.7 





(Sample 



26.1 





(No. 2..... 



17.1 





No.3 



18.8 



june x. 



VNo. 4 



22.8 







26.3 





(No.2 



21.5 





lNo.3 



22.9 





INo. 4 



28.8 









33.2 





(No.2 



21.9 





INo. 3. 



23.4 



August 



]No. 4 



27.9 







23.2 





(No. 2 



24.4 





INo. 3 



24.0 



September . . . 



lNo.4... 



29.5 







37.0 





(No.2 



20.0 





INo. 3 



22.9 



October 



INo. 4 



25.0 







46.7 





(No.2 



20.6 





lNo.3 



18.3 



November. .. 



■JNo. 4 



16.2 







17.1 



