Tumwegamire, Silver. Genetic variation, diversity and genotype by environment interaction s of nutritional quality traits in East African sweetpotatoes / Silv er Tumwegamire. - Kampala, 2011. - xiii, 134 p. : ill. ; 30 cm. Unpublished thesis PhD (Agric.) - Makerere University, 2011. Includes bibliographical references. Subjects--Topical Terms: Sweet potatoes-- Uganda.Sweet potatoes-- Genetics-- Uganda. Dewey Class. No.: 635.22