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dc.contributor.authorHahn, S.K.
dc.contributor.authorHowland, A.K.
dc.contributor.authorWilson, J.E.
dc.date.accessioned2019-12-04T11:27:05Z
dc.date.available2019-12-04T11:27:05Z
dc.date.issued1977
dc.identifier.citationHahn, S.K., Howland, A.K. & Wilson, J.E. (1977). Breeding of root and tuber crops, Proceedings of the First National Seminar on Root and Tuber Crops, Umudike, 21-25 March, 1977. Ibadan, Nigeria: IITA, (p. 36-47).
dc.identifier.urihttps://hdl.handle.net/20.500.12478/4836
dc.description.abstractThe constraint to the production of the root and tuber crops, cassava, yams and sweet potato in Nigeria and Africa were stated. Breeding methods most appropriate to these crops were discussed in terms of mating systems, creation of source populations, selection, and use of selections. Intervarietal hybridization, interspecific hybridization, and population improvement through cyclic selection and recombination procedures were discussed as methods of creating source populations. Factors affecting the effectiveness of selection and efficient methods of selection in order to make maximum genetic progress were discussed. Use of selections were briefly stated. Synthetics, composites, or single and double crosses of yam produced from true seed may be used at the farmer level. The research results and experiences of the Root and Tuber lmprovement Program of llTA were used for discussion tosupport the proposed new breeding schemes of root and tuber crops
dc.language.isoen
dc.subjectCassava
dc.subjectSweet Potatoes
dc.subjectYams
dc.subjectGenotypes
dc.subjectPlant Breeding
dc.titleBreeding of root and tuber crops
dc.typeConference Paper
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.iitasubjectCassava
cg.iitasubjectYam
cg.iitasubjectGenetic Improvement
cg.iitasubjectPlant Breeding
cg.accessibilitystatusLimited Access
local.dspaceid101659


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