Extension agents and
researchers mentioned that the Nerica varieties were most successful in Forest Guinea
and Middle Guinea, rather than in Lower Guinea, even though they were selected in
Lower Guinea. In Lower Guinea CRAK is still actively multiplying Nerica varieties
for dissemination to other regions of the country. Also the variety naming system at
community level may result in different varieties obtaining the same name. Varieties
were often named following the person who introduced them or the area where they
were first encountered