Theses & Dissertations Open Access The effect of barriers and mixed cropping on the epidemiology of Sweet potato virus disease (spvd) in central Uganda Ephrance. Tumuboine Field studies were conducted at Namulonge Agricultural and Animal Production Research Institute (NAARI) AND Makerere University Agricultural Research Institute Kabanyolo (MUARIK), both located in central Uganda. The studies aimed at: a) de… RUF-35489 2003 CC BY 4.0 29 Sep 2015