UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 1041 



Contribution from the Bureau of Plant Industry 

 WM. A. TAYLOR, Chief 



Washington, D. C. 



January 11, 1922 



A STUDY OF SWEET-POTATO VARIETIES 



WITH SPECIAL REFERENCE TO 



THEIR CANNING QUALITY 



By 



C. A. MAGOON and C. W. CULPEPPER 



OflSce of Horticultural and Pomological Investigations 



CONTENTS 



Page 



Introduction ^ 



Chemical Composition of Sweet Potatoes 3 



Experimental Canning Tests ^ 



Discoloration 1* 



Heat Penetration and Sterilization 16 



Consistency ^^ 



Varieties and Strains of Sweet Potatoes Used in These Testa ... 23 



Summary 30 



Literature Cited 33 



WASHINGTON 

 GOVERNMENT PRINTING OFFICE 



1922 



