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)