Genotype by environment (G x E) interaction in cassava (Manihot esculenta Crantz) in Uganda

cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationSierra Leone Agricultural Research Instituteen
cg.contributor.affiliationMakerere Universityen
cg.coverage.countryUganda
cg.coverage.iso3166-alpha2UG
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.issn1118-2075en
cg.issue1en
cg.reviewStatusPeer Reviewen
cg.subject.iitaCASSAVAen
cg.subject.iitaGENETIC IMPROVEMENTen
cg.subject.iitaHANDLING, TRANSPORT, STORAGE AND PROTECTION OF AGRICULTURAL PRODUCTSen
cg.subject.iitaPLANT PRODUCTIONen
cg.subject.iitaLAND USEen
cg.volume7en
dc.contributor.authorNtawuruhunga, Pheneasen
dc.contributor.authorWhyte, J.en
dc.contributor.authorDixon, A.en
dc.contributor.authorRubaihayo, P.R.en
dc.date.accessioned2018-02-06T12:14:56Zen
dc.date.available2018-02-06T12:14:56Zen
dc.identifier.urihttps://hdl.handle.net/10568/90827
dc.titleGenotype by environment (G x E) interaction in cassava (Manihot esculenta Crantz) in Ugandaen
dcterms.abstractGenotype (G) by environment (E) interaction (GEI) in cassava was studied using 10 genotypes in a multilocational trial in Uganda at different altitudes for 2 years. The study investigated the magnitude of GEI and diagnosed the underlying causal factors of the G × E pattern. The analysis of variance indicated that the effects of E, G, and GEI were significant for storage root number, storage root size, storage root girth, fresh storage root weight, and dry yield, but not for dry matter content. Additive Main Effects and Multiplicative Interactions (AMMI) was used to assist the selection and zonation of the environments into homogenous ecosystems. Genotype TMS I 92/0057 was found to have broad adaptation, high yield, and stability, with temperature being one of the underlying causal factors of the interaction. Namulonge (mid-altitude) was identified as a stable environment and could be considered as a site for broad selection.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationNtawuruhunga, P., Whyte, J., Dixon, A. & Rubaihayo, P.R. (2009). Genotype by environment (G x E) interaction in cassava (Manihot esculenta Crantz) in Uganda. African Journal of Root and Tuber Crops, 7(1), 1-7en
dcterms.issued2009
dcterms.languageen
dcterms.subjectcassavaen
dcterms.subjectgenotype by environment interactionen
dcterms.subjectammien
dcterms.subjectstabilityen
dcterms.subjectadaptabilityen
dcterms.typeJournal Article

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