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Response of upland rice cultivars to weed competition in the savannas of West Africa

dc.contributor.authorEkeleme, F.
dc.contributor.authorKamara, A.Y.
dc.contributor.authorOikeh, S.O.
dc.contributor.authorOmoigui, L.O.
dc.contributor.authorAmaza, P.
dc.contributor.authorAbdoulaye, Tahirou
dc.contributor.authorChikoye, D.
dc.date.accessioned2019-12-04T11:11:43Z
dc.date.available2019-12-04T11:11:43Z
dc.date.issued2009
dc.identifier.citationEkeleme, F., Kamara, A.Y., Oikeh, S.O., Omoigui, L.O., Amaza, P., Abdoulaye, T. & Chikoye, D. (2009). Response of upland rice cultivars to weed competition in the savannas of West Africa. Crop Protection, 28(1), 90-96.
dc.identifier.issn0261-2194
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2486
dc.description.abstractA 2-year field study was conducted to assess the effect of weed competition on the performance ofupland rice cultivars in the savannas of Nigeria. A split-plot design was used with three weeding levels asthe main plot treatments and the rice cultivars CG 14, ITA 150, WAB 56-104, NERICA1, NERICA2, andNERICA4 as the subplots. Grain yield, spikelets plant 1and days to flowering differed significantly inplots weeded once or twice. Weed dry weight was negatively correlated with grain yield. Grain yield inall cultivars was over 50% less in the unweeded plots than in plots weeded once or twice. At Sabon-Gari,NERICA1 (unweeded or weeded twice), and NERICA4 (weeded once) were the most profitable. At Tilla,NERICA4 was the most profitable when weeded once or twice. Results showed that, given the profit-ability levels under the different weeding regimes, farmers would have higher marginal returns if theygrew NERICA1 at Sabon-Gari and NERICA4 at Tilla and weed their rice plots twice.
dc.description.sponsorshipCanadian International Development Agency
dc.format.extent90-96
dc.language.isoen
dc.subjectWeed Competition
dc.subjectWeed Dry Weight
dc.subjectWeeding Levels
dc.subjectNerica
dc.subjectGross Margin
dc.subjectSmallholders
dc.subjectHerbicides
dc.subjectRice Cultivars
dc.titleResponse of upland rice cultivars to weed competition in the savannas of West Africa
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationAfrica Rice Center
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.countryTogo
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectFood Security
cg.iitasubjectGrain Legumes
cg.iitasubjectSmallholder Farmers
cg.iitasubjectPlant Ecology
cg.iitasubjectPlant Production
cg.iitasubjectFarm Management
cg.iitasubjectWeeds
cg.iitasubjectCrop Systems
cg.journalCrop Protection
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid93237
cg.identifier.doihttps://dx.doi.org/10.1016/j.cropro.2008.09.006


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