16 



BULLETIN 557, U. So DEPARTMENT OF AGRICULTURE. 



not true of flour color except with wheat which is fairly low in test 

 weight and then the color falls somewhat lower than with the heavier 

 wheat. This holds true with all three classes of wheat with which 

 this comparison was made. 



This table is arranged to bring out such connection as may exist 

 between the percentages of sound wheat and flour yield and color. 

 By percentage of sound wheat is meant that portion of the sample 

 remaining after all damaged kernels, seeds, dirt, and other grains 

 have been removed. As in these studies the analyses were made on 

 samples prepared for milling and after most of the impurities, such 

 as seeds, dirt, and other grains, had been separated, the main factor 

 to be considered is damage, other determinations averaging so low as 

 to be almost negligible. 



An analysis of Table III from this standpoint reveals a direct con- 

 nection between the flour }deld and the percentage of sound wheat. 

 With all three classes there is a fairly regular decrease in flour yield 

 as the percentage of sound wheat decreases. 



Table III. — Relation of weight per bushel and soundness of wheat to flour 

 yield and color of bread in hard red spring, hard red winter, and soft red 

 winter wheat of the crops of 1911, 1912, and 1913. 





Ranges in percentage of sound wheat. 





95 to 100. 



90 to 94.9. 



85 to 89.9. 



80 to 84.9. 



79.9 or less. 



Average of all. 



Class of wheat 

 and ranges in 



weight per 

 bushel 



(pounds). 



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Hard red spring: 

 64 to 65 9 



2 



35 



24 



8 



3 



P.ct. 



72 



71.5 



71.6 



70.8 

 67.4 



100 

 98 

 96.5 

 99.2 

 99 



3 



12 

 34 

 16 



P.ct. 

 73.3 

 70.9 

 71.1 

 71.5 



92.3 

 96.5 

 96 

 95.2 





P.ct. 







P.ct. 







P.ct. 



. 



5 

 52 

 82 

 40 

 14 

 12 



P.ct. 

 72.8 

 71.4 

 71.2 

 70.5 

 67.1 

 66.3 



70.6 



73.1 

 73.2 

 71.1 

 69.6 

 68.5 



95 4 



62 to 63 9 



5 

 18 

 4 

 4 



72. 2 97. 2 

 71.194.4 

 70. 1 97. 7 

 68. 7 95 















97 5 



60 to 61 9 



6 

 9 

 2 

 2 



19 



1 

 6 

 8 

 ? 



71.8 

 70.9 

 68.7 

 67 



69.6 



74.6 

 72 

 70 

 67.3 



95 

 88 

 95 

 92 



91.3 



97 

 97.5 

 95. S 

 96 









95 6 



58 to 59.9.... 

 56 to 57.9 



3 



5 

 4 



12 



1 



4 

 7 

 4 

 1 



1 



65.7 



67 



66.5 



99.3 



88.4 

 91 



94.9 

 93 5 



54 to 55.9 



6 

 71 



13 



24 



8 



65.9 



97 



93 3 





72 



20 



25 



4 



1 







31 



70. 895. 3 





Average... 



71.3 



97.7 



70.9 



95.9 



66.3 



91.8) 205 



99 35 

 97. 81 78 

 94.9 34 

 94.6. 7 

 94 3 

 89 2 



95.7 



Hard red winter: 

 64 to 65.9 



72.8 

 73.7 

 72.4 

 73.1 



97 

 95 

 98 

 94.5 



73.2 

 73.5 

 72.0 



93.5 



71.1 



72.2 

 70.3 

 69.9 

 66.9 

 68.8 



95 ? 



62 to 63.9.... 

 60 to 61.9.... 

 5S to 59.9 



94.6 

 94.7 



19 



7 



72.5 94.7 

 71.3 96.6 



95.1 



96 



95 



56 to 57.9 









2 



69. 3 94. 5 



1 





94 9 



54 to 55.9. . . 















1 



63.8 



91 



66.3 90 





50 



17 

 18 

 2 







45 



14 



20 

 2 







28 



6 

 17 

 6 







Average... 



73.2 



96.3 



73.2 



94.3 



72.2 



95. 2 18 



70.7 



96 



18 



69.1 



95.4: 159 



72.395.3 



Soft red winter: 

 62 to 63.9 



70.3 

 69.6 

 70.4 



95.8 

 9S.2 

 79 



69.6 

 69.8 

 64.2 



95.6 

 97.6 

 100 



70.6 

 69.1 

 70.2 



93.4 

 95.7 

 94 









37 



66 



20 



2 



3 



70.r95.4 



60 to 61.9.... 

 58 to 59.9.... 

 56 to 57.9 



9 



8 



69.5 

 69.3 



93.7 

 92.8 



2 

 2 

 2 

 1 



1 



8 



67.1,97 

 67.9,91 

 60. 2 84. 3 

 64.4'S9 



69. 5 96. 7 

 69 92.3 

 60.2S4.3 



54 to 55.9. . . 















2 



65.7 



95.1 









65.393.1 



52 to 53.9... 





















65.175.3 1 



65.175.3 





37 







36 







31 









93.3 









Average... 



69.9 



96.1 



69.4 



97 



69.2 



95.3 



17 



69.4 



65 



88.6 



129 



69.3 



95.3 



