Performance of elite maize genotypes under selected sustainable intensification options in Kenya

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cg.authorship.typesCGIAR multi-centreen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationInternational Maize and Wheat Improvement Centeren
cg.contributor.crpClimate Change, Agriculture and Food Security
cg.contributor.crpGrain Legumes
cg.contributor.donorAustralian Centre for International Agricultural Researchen
cg.contributor.donorBill & Melinda Gates Foundationen
cg.coverage.countryKenya
cg.coverage.iso3166-alpha2KE
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierFred Kanampiu: 0000-0002-2480-6813
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1016/j.fcr.2020.107738en
cg.identifier.iitathemeNATURAL RESOURCE MANAGEMENT
cg.isijournalISI Journalen
cg.issn0378-4290en
cg.journalField Crops Researchen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaGenetic Innovation
cg.subject.iitaAGRONOMYen
cg.subject.iitaCOWPEAen
cg.subject.iitaCROP SYSTEMSen
cg.subject.iitaFOOD SECURITYen
cg.subject.iitaGENETIC IMPROVEMENTen
cg.subject.iitaGRAIN LEGUMESen
cg.subject.iitaMAIZEen
cg.subject.iitaPLANT BREEDINGen
cg.subject.iitaPLANT GENETIC RESOURCESen
cg.subject.iitaPLANT PRODUCTIONen
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 1 - No povertyen
cg.subject.sdgSDG 2 - Zero hungeren
cg.volume249en
dc.contributor.authorRusinamhodzi, Leonarden
dc.contributor.authorMakumbi, Danen
dc.contributor.authorNjeru, J.M.en
dc.contributor.authorKanampiu, F.K.en
dc.date.accessioned2022-04-05T10:30:36Zen
dc.date.available2022-04-05T10:30:36Zen
dc.identifier.urihttps://hdl.handle.net/10568/119255
dc.titlePerformance of elite maize genotypes under selected sustainable intensification options in Kenyaen
dcterms.abstractCombining different cropping and tillage systems with different genotypes across several cropping seasons can reveal opportunities for sustainable intensification (SI). The objective of this study was to assess the performance of six maize genotypes under intercropping with conservation tillage (no-till) – two promising options for SI. The experiment was carried out over three years (or six cropping seasons) at Kiboko Research Station, Kenya with sole cropping and mouldboard ploughing as baseline production systems. Results showed that maize genotypes and cropping systems had a significant effect on yield, but the effect of tillage was not significant. Moreover, there was no significant interactive effects of the tested factors on maize yield. The maize genotype CKH10085 had the highest yield of 7.7 t ha−1 under sole cropping yet it also recorded the largest yield penalty due to intercropping of 1.1 t ha−1. On the other hand, genotype CKH10717 maintained the same average yield of 7.1 t ha−1 in both conventional and conservation tillage systems. The commercial genotype genotype CKH10080 and CKH08051 were more stable than the other experimental genotypes under the variable growing and management conditions. These two genotypes are of intermediate maturity and drought tolerance, two critical attributes to improved maize production. Intercropping reduced maize yields due to increased competition, for example the overall yield of sole cropping was 7.1 t ha-1 compared with 6.4 t ha-1 under intercropping; representing an overall yield penalty of 0.7 t ha-1. The differences in performance of maize genotypes revealed opportunities to deploy genotypes to reduce risk or maximize yield, depending on the biophysical circumstances and the production objective of the farmer.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.available2020-01-30
dcterms.bibliographicCitationRusinamhodzi, L., Makumbi, D., Njeru, J.M. & Kanampiu, F. (2020). Performance of elite maize genotypes under selected sustainable intensification options in Kenya. Field Crops Research, 249: 107738, 1-9.en
dcterms.extent1-9en
dcterms.issued2020-04
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherElsevieren
dcterms.subjectconservation agricultureen
dcterms.subjectconventional tillageen
dcterms.subjectmaizeen
dcterms.subjectcowpeasen
dcterms.subjectintercroppingen
dcterms.subjectsustainabilityen
dcterms.subjectgenotypesen
dcterms.subjectkenyaen
dcterms.typeJournal Article

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