Assessing yield stability and adaptability of Andean common bean genotypes in the semi-arid environment of Botswana

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cg.contributor.affiliationInternational Center for Tropical Agricultureen
cg.contributor.crpGrain Legumes and Dryland Cereals
cg.coverage.countryBotswana
cg.coverage.iso3166-alpha2BW
cg.coverage.regionAfrica
cg.coverage.regionSouthern Africa
cg.creator.identifierRowland Chirwa: 0000-0003-2977-9786en
cg.identifier.doihttps://doi.org/10.5897/ajar2019.13988en
cg.identifier.urlhttps://academicjournals.org/journal/AJAR/article-abstract/AA5E1BC61932en
cg.issn1991-637Xen
cg.issue32en
cg.journalAfrican Journal of Agricultural Researchen
cg.subject.ciatBEANSen
cg.volume14en
dc.contributor.authorMolosiwa, Odireleng O.en
dc.contributor.authorPharudi, Josephen
dc.contributor.authorSeketeme, Seipatien
dc.contributor.authorMashiqa, Patricken
dc.contributor.authorChirwa, Rowlanden
dc.date.accessioned2019-11-08T18:02:12Zen
dc.date.available2019-11-08T18:02:12Zen
dc.identifier.urihttps://hdl.handle.net/10568/105695
dc.titleAssessing yield stability and adaptability of Andean common bean genotypes in the semi-arid environment of Botswanaen
dcterms.abstractCommon bean (Phaseolus vulgaris L.) is a vital source of nutrients worldwide. It is one of the most consumed grain legume in Botswana. Fourteen Andean common bean genotypes were evaluated in four environments (two seasons and two diverse agro-ecologies) to determine the effect of genotype and environment interaction and yield stability. The genotypes were grown in a randomized complete block design with three replications. Grain yield data was analyzed on additive main effects and multiplicative interaction (AMMI), cultivar superiority index, Wricke’s ecovalence and Finlay and Wilkinson regression. There was a lack of variation among the selected genotypes, while environment and genotype × environment interaction (GEI) was significant (P <0.01), which is an opportunity to select stable genotypes across environments. AMMI model for total variation revealed that the environment effect was dominant at 36.83%, genotype × environment interaction at 19.82%, while genotype alone was 3.38%. The cumulative sum of squares of the first two interaction principal component axes (IPCAs) accounted for 76.13% of interaction. Stability coefficients consistently identified genotypes DAB494, CAL96 and DAB541 as the most stable and well adapted, besides the low yield realized. These genotypes are useful for stability breeding purposes and for introduction to the semi-arid environment of Botswana.en
dcterms.accessRightsOpen Access
dcterms.available2019-09-30en
dcterms.bibliographicCitationMolosiwa, Odireleng O.; Pharudi, Joseph; Seketeme, Seipati; Mashiqa, Patrick & Chirwa, Rowland (2019). Assessing yield stability and adaptability of Andean common bean genotypes in the semi-arid environment of Botswana. African Journal of Agricultural Research, Vol.14 (32), pp. 1593-1600en
dcterms.extentp. 1593-1600en
dcterms.issued2019en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherAcademic Journalsen
dcterms.subjectcommon beansen
dcterms.subjectyieldsen
dcterms.subjectphaseolus vulgaris l.en
dcterms.subjectgenotypesen
dcterms.typeJournal Article

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