C.N. Egesi, R. Asiedu and J.K. Egunjobi
Yams are a major staple and of income for small-scale farmers in West and Central Africa. Yam production is fraught with serious pest and other problems that could be addressed through breeding. But poor flowering and seed-setting has limited the introduction of valuable genes from some germplasm with desirable attributes. Approaches to promote flowering in yams include multiple planting dates as well as studies involving pollen viability, anthesis time, longevity of stigma receptivity and ploidy levels. Insight into the influences of genotypes, planting dates and geographical locations have been provided.