>0 



>11 



'311379 

 )t.4 



TROPICAL YAMS 

 AND THEIR POTENTIAL 



Part 4. Dioscorea rotundata 

 and Dioscorea cayenensis 



Agriculture Handbook No. 502 



mm 



977 



Agricultural Research Service 

 UNITED STATES DEPARTMENT OF AGRICULTURE 



in cooperation with 

 Agency for International Development 



