Theses & Dissertations Open Access On-farm evaluation of orange-fleshed sweetpotato varieties in northeastern Uganda Emmanuel Gilbert. Omiat Orange-fleshed sweetpotato (OFSP) varieties currently represent the least expensive, year-round source of dietary vitamin A available to poor families in Eastern Africa. An on-farm study was conducted in North-Eastern Uganda to assess fiel… RUF-35400 2004 CC BY 4.0 23 Sep 2015