Opiyo, Rachier Gedion. Mechanisms for tolerance to low soil phosphorus in common bean (Phas eolus Vulgaris L.) in Uganda [microfilm] / by Rachier Gedion Opiy o. - Kampala, Uganda: Makerere University Library Microfilming Unit, 2002. - 3 titles on 1 microfilm reel; 16 mm. Thesis (M. Sc. Agric) - Makerere University, 1997. Includes bibliographical references. Subjects--Topical Terms: Beans-- Uganda.Soils-- Phosphorus content.