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The contribution of IITA improved cassava to food security in subSaharan Africa: an impact study

dc.contributor.authorBokanga, M.
dc.contributor.authorMakinde, K.
dc.contributor.authorDixon, A.
dc.contributor.authorWhyte, J.
dc.contributor.authorManyong, Victor M.
dc.date.accessioned2019-12-04T11:21:19Z
dc.date.available2019-12-04T11:21:19Z
dc.date.issued2000
dc.identifier.citationManyong, V., Dixon, A., Makinde, K., Bokanga, M. & Whyte, J. (2000). The contribution of IITA-improved cassava to food security in sub-Saharan Africa: an impact study. Ibadan, Nigeria: IITA, (p. 13).
dc.identifier.isbn978 131 187 8
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3744
dc.description.abstractSince its foundation in 1967, the International Institute of Tropical Agriculture (IITA) has worked, in partnership with national agricultural research systems in sub-Saharan Africa, on the improvement of cassava and dissemination of improved cassava germplasm. This paper describes the impact of this work, by looking at the spread of improved cassava varieties, their use in national breeding programs, and the ultimate benefits of this work on food security in sub-Saharan Africa. Twenty countries were surveyed, which together account for over 90% of cassava production in sub-Saharan Africa. A total of 206 cassava varieties were released between 1970 and 1998 by the national agricultural research systems of these countries. Genetic materials from IITA represented the major source of germplasm used in the development of released varieties. In 1998, improved cassava varieties were grown on about 22% of the 9 million hectares that were planted to cassava in the 20 countries. The use of improved varieties resulted in a yield increase of 49% over the average yield, and an additional production of 10 million tonnes of fresh storage roots per year, or 2200 kcal per person per day for 14 million people. Between 1970 and 1998 a total of 1381 scientists were trained at IITA, accounting for 38% of senior and 49% of intermediate level researchers currently working in cassava research in these countries.
dc.language.isoen
dc.subjectCassava
dc.subjectSub-Saharan Africa
dc.subjectGermplasm
dc.subjectFood Security
dc.subjectAfrican Cassava Mosaic Virus
dc.subjectCassava Bacterial Blight
dc.subjectCassava Varieties
dc.titleThe contribution of IITA improved cassava to food security in subSaharan Africa: an impact study
dc.typeBook
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.regionEast Africa
cg.coverage.countryNigeria
cg.coverage.countryUganda
cg.authorship.typesCGIAR single centre
cg.iitasubjectPlant Diseases
cg.iitasubjectDisease Control
cg.iitasubjectFarm Management
cg.iitasubjectSmallholder Farmers
cg.iitasubjectLivelihoods
cg.iitasubjectPests Of Plants
cg.iitasubjectPlant Breeding
cg.iitasubjectCassava
cg.iitasubjectPlant Production
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectPlant Production
cg.iitasubjectPlant Genetic Resources
cg.accessibilitystatusOpen Access
local.dspaceid95899


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