Subject: Yam and Cocoyam
624. Systematics and utilization of yams (Discorea) in Sri Lanka
A. H. M. Jayasuriya
624. Cultural conditions required for cell division, callus induction and early stages of somatic embryogenesis in protoplast and tissue explants of Dioscorea alata L., CV. Oriental Lisbon
C. T. Twyford and S. H. Mantell
633. Recent advances in yam breeding
S. G. Nair, K. Abraham, M. Unnikrishnan, M. T. Sreekumari and C. S. Easwariamma
638. Production prospects for Yam miniset technology in Ghana
L. K. Djokoto and G. C. Kportfeame
642. Mechanized production of Yams in Barbados
J. P. W. Jeffers
642. Production of Lesser Yam. Dioscorea esculenta (Lour) Burk, in East Sepik Province, Papua New Guinea
F. M. Quin
643. An epidemiological approach to the study of Yam Mosaic Virus in The Ivory Coast
J. C. Thouvenel and R. Dumont
648. Studies on the nutritive value and utilization of tubers of Dioscorea alata and Dioscorea esculenta
K. Thirumaran, A. S. Thirumaran and M. A. Seralathan
648. Progress in Cocoyam (Xanthosoma sagittifolium) breeding in Cameroon- 1979 to 1987
A. Agueguia
654. Response of cocoyams (Xanthosoma sagittifolium) to rate and time of application of potassium fertilizer
U. R. Sangakkara