Show simple item record

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

dc.contributor.authorRusinamhodzi, L.
dc.contributor.authorMakumbi, D.
dc.contributor.authorNjeru, J.M.
dc.contributor.authorKanampiu, F.
dc.date.accessioned2022-04-05T10:28:24Z
dc.date.available2022-04-05T10:28:24Z
dc.date.issued2020-04-01
dc.identifier.citationRusinamhodzi, 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.
dc.identifier.issn0378-4290
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7407
dc.description.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.
dc.description.sponsorshipAustralian Centre for International Agricultural Research
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-9
dc.language.isoen
dc.subjectConservation Agriculture
dc.subjectConventional Tillage
dc.subjectMaize
dc.subjectCowpeas
dc.subjectIntercropping
dc.subjectSustainability
dc.subjectGenotypes
dc.subjectKenya
dc.titlePerformance of elite maize genotypes under selected sustainable intensification options in Kenya
dc.typeJournal Article
cg.contributor.crpClimate Change, Agriculture and Food Security
cg.contributor.crpGrain Legumes
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInternational Maize and Wheat Improvement Center
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryKenya
cg.coverage.hubCentral Africa Hub
cg.researchthemeNatural Resource Management
cg.identifier.bibtexciteidRUSINAMHODZI:2020
cg.isijournalISI Journal
cg.authorship.typesCGIAR Multi Centre
cg.iitasubjectAgronomy
cg.iitasubjectCowpea
cg.iitasubjectCrop Systems
cg.iitasubjectFood Security
cg.iitasubjectGenetic Improvement
cg.iitasubjectGrain Legumes
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalField Crops Research
cg.notesOpen Access Article; Published online: 30 Jan 2020
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1016/j.fcr.2020.107738
cg.iitaauthor.identifierFred Kanampiu: 0000-0002-2480-6813
cg.futureupdate.requiredNo


Files in this item

Thumbnail
Name:
U20ArtRusinamhodziPerfomanceIn ...
Size:
2.399Mb
Format:
PDF
Description:
Journal Article
View/Open

This item appears in the following Collection(s)

Show simple item record