Genetic characterization of cassava (Manihot esculenta Crantz) traits using argo-morphological characters

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cg.authorship.typesCGIAR and developing country instituteen_US
cg.contributor.affiliationUniversity of Lagosen_US
cg.coverage.countryNigeriaen_US
cg.coverage.iso3166-alpha2NGen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionWestern Africaen_US
cg.placeLagos, Nigeriaen_US
cg.subject.iitaAGRONOMYen_US
cg.subject.iitaCASSAVAen_US
cg.subject.iitaFOOD SECURITYen_US
cg.subject.iitaGENETIC IMPROVEMENTen_US
cg.subject.iitaPLANT BREEDINGen_US
cg.subject.iitaPLANT PRODUCTIONen_US
cg.subject.iitaPOST-HARVESTING TECHNOLOGYen_US
cg.subject.impactAreaNutrition, health and food securityen_US
cg.subject.impactPlatformNutrition, Health and Food Securityen_US
cg.subject.sdgSDG 2 - Zero hungeren_US
dc.contributor.authorIyanda, S.A.en_US
dc.date.accessioned2025-01-21T07:50:08Zen_US
dc.date.available2025-01-21T07:50:08Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/169516en_US
dc.titleGenetic characterization of cassava (Manihot esculenta Crantz) traits using argo-morphological charactersen_US
dcterms.abstractCassava (Manihot esculenta Crantz) is an important crop in Nigeria where leaves and tubers are eaten. However, its genetic variability remains unexplored in Nigeria. Local varieties are precious genetic resources because of their diversity. Mastery of this diversity is an important basis for crop improvement through plant breeding programs. Local cassava accessions (99) were collected mainly from the international institute of tropical agriculture (IITA), Ibadan, Southwestern part of Nigeria. These accessions have been planted with the objective to characterize them, based on morphological agro-morphological traits, and parameters were recorded at three, six, nine and twelve months after planting. The experiment was carried out in experimental station of IITA, and sixty-two (62) morphological were used. Significant differences (p<0.05) were observed for all the 62 analysed morphological traits. A total of twenty-one principal component analysis (PCA) in the trait sets accounted for eigen value range of 7.55 to 1.01 and a cumulative percentage variance of 83.95% to 11.45% of the total genetic variation. The Principal Component Analysis reveals traits with positive high dispersion of the accessions. On the cluster analysis, the accessions were classified in four groups. The matrices of genetic dissimilarity were used in the construction of dendrograms using the UPGMA method. We observed a high variation of agronomical descriptors which were capable to separate the accessions into four distinct clusters. This work showed the variation in agronomic traits existing among cassava accessions in IITA, Ibadan, Nigeria that could be exploited to enhance cassava breeding programs.en_US
dcterms.accessRightsLimited Accessen_US
dcterms.audienceScientistsen_US
dcterms.bibliographicCitationIyanda, S.A. (2021). Genetic characterization of cassava (Manihot esculenta Crantz) traits using argo-morphological characters. Lagos, Nigeria: University of Lagos, (86 p.).en_US
dcterms.descriptionIITA supervisor: Dr. B. Faloyeen_US
dcterms.extent86 p.en_US
dcterms.issued2021-11en_US
dcterms.languageenen_US
dcterms.licenseCopyrighted; all rights reserveden_US
dcterms.publisherUniversity of Lagosen_US
dcterms.subjectcassavaen_US
dcterms.subjectgenetic diversityen_US
dcterms.subjectplant diseasesen_US
dcterms.subjectgenetic improvementen_US
dcterms.subjectprocessingen_US
dcterms.typeThesisen_US

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