Nyombayire, Alphonse. Combining ability and genotype by environment interaction of selecte d maize inbred lines for performance under low nitrogen and drought str ess / Nyombayire Alphonse. - Kampala, 2011. - xii, 100 p. : ill. ; 30 cm. Unpublished thesis M.Sc. (Plant Breeding & Seed Syst. ) - Makerere U niversity, 2011. Includes bibliographical references (p. 83-89). Subjects--Topical Terms: Corn-- Breeding.Corn-- Climatic factors. Dewey Class. No.: 631.523