@INPROCEEDINGS {GYANSA-AMEYAW:1994, title = {Determination of optimum sett size for white guinea yam (Dioscorea rotundata Poir.) seed yam production: trends in sprouting in the presprout nursery and field performance}, author = {Gyansa-Ameyyaw, C. E. and Hahn, S. K. and Alvarez, M. N. and Doku, E. V. }, editor = {Ofori, F and Hahn, S. K. }, booktitle = {Tropical root crops in a developing economy: proceedings of the 9th Symposium of the International Society for Tropical Root Crops, 20-26 October 1991, Accra, Ghana}, year = {1994}, pages = {335--341}, publisher = {ISTRC; Government of Ghana; International Institute of Tropical Agriculture (IITA)}, address = {Accra, Ghana}, note = {RTB; Root and Tuber; Yam}, }