242 



FIELD CROPS 



different types and varieties. Dwarf forms which do not 

 grow more than 2 or 3 feet tall are known, while giant types 

 reaching more than 15 feet in height have been imported 

 from Africa. The heads vary from the close, compact form 



Figure &'J. -^lleuvcd ui gru,m sorghums: 1, Red kafir; 2, Shallu; 3, Blackhull kafir; 

 4, White durra; 5, Brown kaoliang; 6, Yellow milo; 7, Dwarf milo. 



of the durras to the wide spreading type of the broomcorns. 

 The pith in the stalks of the grain sorghums is dry or con- 

 tains httle juice, while that of the forage or sweet sorghums 

 (sorgos) is filled with sweet juice. The long branching 

 panicle separates the broomcorns from the other types of 

 sorghum with shorter branches. The sweet sorghums are 



