Theses & Dissertations Open Access Improving Research Methods On Bean Breeding At Burundi Agronomic Sciences Research Institute Ntukamazina Nepomuscene In Burundi, agricultural sector faces several constraints among them climate variability, increasing population density, pests and diseases and soil degradation. These factors lead to very low (and declining) levels of agricultural product… RUF-35318 2011 CC BY 4.0 18 Sep 2015