@ARTICLE {SHIWACHI:2002a, title = {Effect of day length on the development of tubers in yams (Dioscorea spp.)}, author = {Shiwachi, H. and Ayankanmi, T. and Asiedu, R. }, journal = {Tropical Science}, year = {2002}, volume = {42}, pages = {162--170}, issn = {1556-9179}, note = {WAHub; RTB; Yam}, }