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Stability of iron and zinc concentrations in selected genotypes of cassava (Manihot esculenta Crantz) tuberous roots

dc.contributor.authorSsemakula, G.N.
dc.contributor.authorDixon, Alfred G.O.
dc.contributor.authorMaziya-Dixon, B.
dc.date.accessioned2019-12-04T11:15:15Z
dc.date.available2019-12-04T11:15:15Z
dc.date.issued2008
dc.identifier.citationSsemakula, G., Dixon, A.G.O. & Maziya-Dixon, B. (2008). Stability of iron and zinc concentrations in selected genotypes of cassava (Manihot esculenta Crantz) tuberous roots. Journal of Food, Agriculture & Environment. 6(3-4), 362-367.
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2944
dc.description.abstractIron (Fe) and Zinc (Zn) concentrations in tuberous roots of twenty-five cassava (Manihot esculenta Crantz) genotypes were determined over 2 years (2004/2005 and 2005/2006) at five locations representing distinct agroecologies in Nigeria. The objectives were to study the magnitude and nature of genotype by environment interaction (GEI) and stability of the micronutrients concentrations. Combined analyses of variance using the GLM procedure of SAS indicated that location (L), genotype (G), year (Y) and Y x L interaction were significant (P<0.001) for both micronutrients. G x L interaction was marginally significant for Zn only. There was no statistical evidence to suggest that any of GEI partitions (G x L, G x Y and G x L x Y) for Fe were significant albeit largest percentage contribution to total sum of squares by G x L and G x L x Y interactions. Contrastingly, the additive main effect and multiplicative interaction (AMMI) analysis revealed that the effects of GEI were statistically significant for both micronutrients. AMMI also revealed that many clones were stable for Fe and Zn. Similar to the GLM analysis, AMMI revealed a high contribution of GEI to total sum of squares for both Fe and Zn; it was more than double that of G. Clones 01/1368, 94/0330, 01/1442, 01/1412, 01/1413, 01/1610, 01/1115, 01/1663 and 01/1273 were the most stable for Fe concentration with levels above the overall mean; 01/1273 and 01/1404 were the most stable with above average conce.
dc.description.sponsorshipUnited States Department of Agriculture
dc.language.isoen
dc.subjectCassava
dc.subjectZinc
dc.subjectGene Expression
dc.subjectGenetic Stability
dc.subjectClones
dc.subjectGenetic Stability
dc.subjectChemical Concentration
dc.subjectClones
dc.subjectTraits
dc.subjectManihot Esculenta
dc.titleStability of iron and zinc concentrations in selected genotypes of cassava (Manihot esculenta Crantz) tuberous roots
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.authorship.typesCGIAR single centre
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectGenetic Improvement
cg.iitasubjectPlant Breeding
cg.iitasubjectCassava
cg.iitasubjectPlant Production
cg.iitasubjectPost-Harvesting Technology
cg.iitasubjectFarming Systems
cg.iitasubjectFood Security
cg.iitasubjectPlant Diseases
cg.iitasubjectDisease Control
cg.iitasubjectPests Of Plants
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectFarm Management
cg.iitasubjectPlant Diseases
cg.accessibilitystatusLimited Access
local.dspaceid94045


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