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dc.contributor.authorAzeez, J.
dc.contributor.authorChikoye, D.
dc.contributor.authorKamara, A.
dc.contributor.authorMenkir, A.
dc.contributor.authorAdetunji, M.
dc.date.accessioned2019-12-04T11:18:57Z
dc.date.available2019-12-04T11:18:57Z
dc.date.issued2005
dc.identifier.citationAzeez, J., Chikoye, D., Kamara, A., Menkir, A. & Adetunji, M. (2005). Effect of drought and weed management on maize genotypes and the tensiometric soil water content of an eutric nitisol in south western Nigeria. Plant and Soil, 276(1), 61-68.
dc.identifier.issn0032-079X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3361
dc.description.abstractIn the dry savannas of West and Central Africa, where low soil fertility, unpredictable rainfall, weed competition and recurrent drought are major constraints to maize production, the development of tropical maize genotypes with high and stable yields under drought and low-nitrogen condition is very important since access to these improved genotypes may be the only affordable alternative to many small scale farmers. Field trials were conducted in 2002 and 2003 at Ikenne southwestern Nigeria to investigate the effect of weed pressures and drought stress on 2 maize (Zea mays L.) hybrids (9134-14, 9803-9) and 2 open-pollinated varieties (STREVIWD, IYFDCO1). Irrigation was withdrawn 4 weeks after planting (about four weeks to mid-flowering) in the drought stress while the adjacent watered treatment had irrigation throughout the growing period. The weed pressures were the completely weeded plots (hand weeding every week) and weedy plots (weeded once, 2 weeks after planting). The experiment was a split plot in a randomized complete block design with four replicates. Drought stress reduced the stover weight and grain yield of the maize cultivars by 6% and 34% respectively. Weed-free plots had maize with higher agronomic traits than unweeded treatments. Hybrid 9803-9 was more susceptible to drought and weed stress as indicated in the stover weight and grain yield. STREVIWD an open-pollinated variety (OPV) and Hybrid 9134-14 had superior performances in terms of grain yield and shorter anthesis silking interval. Soil moisture content was higher in the unweeded plots while the uptake of moisture was highest in drought susceptible hybrid 9803-9. Irrespective of the genotypes, maize (hybrid and OPV) was more tolerant to drought in a weed-free environment than in unweeded conditions. There existed a negative but significant correlation between weed biomass and chlorophyll content (−0.29, P < 0.01), grain yield (−0.45, P < 0.05), ear plant−1 (−0.27, P < 0.05) and kernel-number (−0.366 P < 0.01).
dc.language.isoen
dc.subjectDrought Stress
dc.subjectEutric Nitisol
dc.subjectMaize Genotypes
dc.subjectWeed Management
dc.subjectNutrient
dc.subjectWeeded Plots
dc.titleEffect of drought and weed management on maize genotypes and the tensiometric soil water content of an eutric nitisol in south Western Nigeria
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationFederal University of Agriculture, Nigeria
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectNutrition
cg.iitasubjectMaize
cg.iitasubjectGenetic Improvement
cg.iitasubjectDisease Control
cg.iitasubjectPests Of Plants
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectWeeds
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectLivelihoods
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.iitasubjectFood Security
cg.accessibilitystatusLimited Access
local.dspaceid95035
cg.identifier.doihttps://dx.doi.org/10.1007/s11104-005-3864-1


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