Important cultivars, varieties, and hybrids

Abstract

The many descriptor states possible for morphological traits alone of sweetpotato as seen in the IBPGR'S Descriptors List for Sweet Potato (Huaman, 1991) already indicate that there could exist a number of varieties of this crop species in the world. In a recent workshop co-sponsored by the International Potato Center (CIP), Rossel et al. (2007) reported that over 6000 accessions of landraces, breeding lines, and advanced cultivars of sweetpotato were held by the Center in its genebank, a collection which, based on reports in the same workshop of some of the sweetpotato producing countries, seems just a small fraction of the available varieties in the world.