Performance of four newly released cassava varieties in a fallowed land over two cropping seasons

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cg.authorship.typesCGIAR and developing country institute
cg.contributor.affiliationDelta State University
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationNovena University, Nigeria
cg.contributor.affiliationDennis Osadebe University
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorBill & Melinda Gates Foundation
cg.coverage.countryNigeria
cg.coverage.iso3166-alpha2NG
cg.coverage.regionAfrica
cg.coverage.regionWestern Africa
cg.creator.identifierCHUKWUNALU OKOLIE: 0000-0002-1924-5855
cg.creator.identifierElohor Diebiru-Ojo: 0000-0002-7399-3870
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1371/journal.pone.0317477
cg.identifier.iitathemeBIOTECH & PLANT BREEDING
cg.isijournalISI Journal
cg.issn1932-6203
cg.issue5: e0317477
cg.journalPLoS ONE
cg.reviewStatusPeer Review
cg.subject.iitaAGRONOMY
cg.subject.iitaCASSAVA
cg.subject.iitaCROP SYSTEMS
cg.subject.iitaFOOD SECURITY
cg.subject.iitaPLANT BREEDING
cg.subject.iitaPLANT PRODUCTION
cg.subject.iitaVALUE CHAINS
cg.subject.impactAreaNutrition, health and food security
cg.subject.impactPlatformNutrition, Health and Food Security
cg.subject.sdgSDG 2 - Zero hunger
cg.volume20
dc.contributor.authorOssai, C.O.
dc.contributor.authorOjobor, S.A.
dc.contributor.authorOgwuche, T.O.
dc.contributor.authorAkpeji, S.C.
dc.contributor.authorSunday, A.I.
dc.contributor.authorDiebiru-Ojo, E.M.
dc.date.accessioned2025-06-19T11:49:48Z
dc.date.available2025-06-19T11:49:48Z
dc.identifier.urihttps://hdl.handle.net/10568/175196
dc.titlePerformance of four newly released cassava varieties in a fallowed land over two cropping seasonsen
dcterms.abstractCassava (Manihot esculenta Crantz) is an important crop for humans due to its staple and industrial values. Currently the demand is more than the supply as the current output falls below the expected. This necessitated the breeding of superior genotypes that are high yielding. These superior genotypes also requires a fertile soil for optimum production. However, this has been primarily achieved through the application of organic manures and inorganic fertilizers. It is then important to evaluate four newly released cassava varieties in an organically enriched soil relative to the local best variety. Four newly released cassava varieties, Hope, Obasanjo2, Baba 70, and Game changer, and one Local Best (LB) was planted in 5-years fallowed farm lands at three plots (A, B and C) for 2 seasons. It was a three-way factorial (5-varieties*3-farms*2-seasons) arranged in a randomized complete block design and replicated three times. Data were taken on the Fresh Tuber Weight (FTW) and Stem Height (SH) per variety, and pre and post soil status. Data were analyzed using analysis of variance, while differences in varietal means were separated using least significant differences at 5% level of significance. The FTW and SH differed significantly across varieties, years and interaction between variety, farms and year, and ranged from 19.2 ± 0.5 (LB) to 41.0 ± 0.5 (Obasanjo2), 32.1 ± 0.4 (farm C) to 34.1 ± 0.4 (farm A), 30.4 ± 0.3 (year two) to 35.0 ± 0.3 (year one), and the interactions between variety and year, farms and year, and variety, year and farms were significant. The soil macro and micro elements declined in the post relative to the pre status. The fresh yield of the improved varieties Baba70, Game change, Hope and Obasanjo2 was 74%, 80.8%, 81%, and 113% higher than the local best, respectively. Yield declined in the second season due to decline inherent soil nutrient hitherto compensated by shifting cultivation in the farming community.en
dcterms.accessRightsOpen Access
dcterms.audienceScientists
dcterms.available2025-04-30
dcterms.bibliographicCitationOssai, C.O., Ojobor, S.A., Ogwuche, T.O., Akpeji, S.C., Sunday, A.I. & Diebiru-Ojo, E.M. (2025). Performance of four newly released cassava varieties in a fallowed land over two cropping seasons. PLoS ONE, 20(5): e0317477, 1-11.
dcterms.descriptionOpen Access Journal
dcterms.extent1-11
dcterms.issued2025
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.subjectcassava
dcterms.subjectmanihot esculenta
dcterms.subjectvarieties
dcterms.subjectcropping calendar
dcterms.subjectgenotypes
dcterms.typeJournal Article

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