This Legumes Synthesis Report documents the most important cases of farmers adopting new varieties, and the economic, social and environmental impacts of legume technologies developed by CGIAR in collaboration with national agricultural research system (NARS) partners (see SPIA Project details here). It reviews research results from over 30 adoption surveys conducted in more than 20 developing countries (primarily the Diffusion and Impact of Improved Varieties in Africa i.e DIIVA study data), which provide evidence that farmers are growing improved legume varieties in many regions.
There is ample evidence of widespread adoption of improved bean varieties in Sub-Saharan Africa, chickpea varieties in southern India and cowpea varieties in West Africa, as well as small-scale adoption of improved chickpea varieties in the Horn of Africa.
This was one in a series of ex post impact assessments of CGIAR research that examined thematic areas which, up to 2010, had not been properly evaluated but for which anecdotal evidence suggested considerable impact. You can read the key findings in the Impact Brief (#44).