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Genotype X environment interaction and stability analysis in upland rice (Oryza sativa L.) varieties in Ethiopia

dc.contributor.authorAbebe, D.
dc.contributor.authorMohammed, W.
dc.contributor.authorTesfaye, A.
dc.date.accessioned2022-12-14T08:41:36Z
dc.date.available2022-12-14T08:41:36Z
dc.date.issued2022
dc.identifier.citationAbebe, D., Mohammed, W. & Tesfaye, A. (2022). Genotype X environment interaction and stability analysis in upland rice (Oryza sativa L.) varieties in Ethiopia. Journal of Crop Science and Biotechnology, 1-12.
dc.identifier.issn1975-9479
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7976
dc.description.abstractDetermination of the genotype x environment interaction (GEI) and stability of upland rice varieties for grain yield provides the basis to identify high-yielding and stable upland rice varieties across different environments and to delineate and identify rice mega environments in Ethiopia. Twenty rice varieties were laid out in a randomized complete block design with three replications and evaluated across six locations that represent the major rice growing agro-ecologies in the country. The combined analysis of variance over environments revealed significant differences among genotypes, environments and GEI for grain yield. The significant GEI implicated the differential response of the genotypes in different environments and demonstrated the remarkable effect of GEI on the performance of the genotypes. The partitioning of GEI based on the AMMI model revealed that only the first two terms of AMMI were significant. The E and GEI had a higher contribution than G for most of the traits, and GEI had larger contribution than G and E to the variations in the studied varieties for yield. The Interaction Principal Component Axis one (IPC1) and two (IPC2) contributed to 55.1% and 24.8% of the GEI sum of squares, respectively. NERICA-3, Hidasse and Chewaqa varieties were identified as responsive to changing environments and the first three best varieties across poor to most favorable environments. NERICA-12 and ADET were identified as the most stable and widely adapted varieties based on most of the stability parameters. NERICA-4, NERICA-13 and Getachew varieties were identified as stable varieties by most of the stability parameters and selected as the first three best varieties at poor to average environments. In conclusion, this study revealed that GE interactions were an important source of rice yield variation, and its AMMI biplots were forceful for visualizing the response of genotypes to environments.
dc.description.sponsorshipEthiopian Institute of Agricultural Research
dc.format.extent1-12
dc.language.isoen
dc.subjectRice
dc.subjectOryza Sativa
dc.subjectGenotypes
dc.subjectVarieties
dc.subjectEthiopia
dc.titleGenotype X environment interaction and stability analysis in upland rice (Oryza sativa L.) varieties in Ethiopia
dc.typeJournal Article
cg.contributor.crpGrain Legumes
cg.contributor.affiliationEthiopia Institute of Agricultural Research
cg.contributor.affiliationHaramaya University
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryEthiopia
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidABEBE:2022a
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectFood Security
cg.iitasubjectGrain Legumes
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.journalJournal of Crop Science and Biotechnology
cg.notesPublished online: 12 Aug 2022
cg.accessibilitystatusLimited Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCopyrighted; all rights reserved
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1007/s12892-022-00161-5
cg.iitaauthor.identifierAbush Tesfaye: 0000-0002-9245-360X
cg.futureupdate.descriptionAttachment of Pdf
cg.futureupdate.requiredYes
cg.futureupdate.duration1 Month


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