APPENDIX III 503 



TENTATIVE UNITED STATES STANDARDS FOR GRAIN SORGHUMS. 



(Adopted by the trade, but not enforced under the United States Grain 

 Standards Act, August 1, 1922). 



For the purpose of the United States grades for grain sorghums: 



GRAIN SORGHUMS. 



Grain sorghums shall be any grain which consists of kafir, milo, durra, 

 feterita, darso, freed sorgo, kaoliang, schrock kafir, and shallu, and any 

 hybrids between these classes, ^.nd not more than 35 per cent of non-grain 

 sorghums, other cereal grains, and " foreign material and cracked kernels,'' 

 as defined in these standards, either singly or in any combination. 



CLASSIFICATION. 

 Grain sorghums shall be divided into classes and subclasses as follows: 



CLASS I. 



KAFIR. 



This class shall include all varieties of kafir, and hegari, except shrock 

 kafir, and may include not more than ten per centum of other grain 

 sorghums. This class shall be divided into two subclasses, as follows: 

 Subclass White Kafir. 



This subclass shall include all kafir, and hegari, except shrock kafir, 

 consisting of 90 per cent or more of white kernels, including other classes 

 and non-grain sorghums. Red spots or other natural coloring upon kernels 

 otherwise white shall not affect their classification as white kafir. 



Subclass Kafir. 



This subclass shall include all kafir, and hegari, except shrock kafir, 

 not coming within the classification for white kafir. 



CLASS II. 



MILO. 



This class shall include all varieties of milo, knd may include not more 

 than ten per centum of other grain sorghums. This class shall be divided 

 into two subclasses, as follows: 



Subclass Yellow Milo. 



This subclass shall include all milo consisting of 90 per cent or more 

 of yellow kernels, including other classes and non-grain sorghums. 



Subclass Milo. 



This subclass shall include all milo not coming within the classification 

 for yellow milo. 



CLASS III. 



DURRA. 



This class shall include all varieties of durra, and may include not more 

 than ten per centum of other grain sorghums. This class shall be divided 

 into two subclasses, as follows : 



Subclass White Durra. 



This subclass shall include all durra consisting of 90 per cent or more 

 of white kernels, including other classes and non-grain sorghums. Red spots 

 or natural coloring upon kernels otherwise white shall not affect their 

 classification as white durra. 



Subclass Durra. 



This subclass shall include all durra not coming within the classification 

 for white durra. 



