Subject: Yams
87. The past and future of the yams as crop plants
90. Yams in Africa
93. The response of yams (Dioscorea spp.) to nitrogen, phosphorus, potassium, and organic fertilizers
97. The production of yams in Barbados
99. Current status of sapogenin-bearing yams
102. Yam culture in Japan
103. Growth studies in Chinese yam (Dioscorea esculenta)