Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria

Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria

Early view

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Bibliographic Details
Main Authors: Chikoye, David, Ekeleme, F., Lum, A.F., Udensi, U.E.
Format: Journal Article biblioteca
Language:English
Published: Wiley 2014-06
Subjects:cogongras, zea mays, imperata cylindrical,
Online Access:https://hdl.handle.net/10568/75906
https://doi.org/10.1111/wre.12077
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spelling dig-cgspace-10568-759062023-08-03T08:11:17Z Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria Chikoye, David Ekeleme, F. Lum, A.F. Udensi, U.E. cogongras zea mays imperata cylindrical Early view operate cylindricais a noxious weed that infests annual and perennial crops in most tropical regions. High crop densities may offer opportunities to reduce. Cylindricacompetition in small-scale farming systems. The competitive ability of maize relative toI. cylindricawas evaluated in an addition series experiment in the forest savannah transition zone in 2006and 2007 at Ibadan, Nigeria. Maize andI. Cylindrica were planted in eight monoculture densities (4, 8, 12,16, 20, 32, 48 and 64 plants m 2) and in a 1:1 mixture at eight total densities (2:2, 4:4, 6:6, 8:8, 10:10, 16:16,24:24 and 32:32 maize: I. cylindricaplants m 2)asinmonoculture. Non-linear regression models were used to relate crop and weed shoot biomass to their density and total grain yield to maize density. In maize, intraspecific competition was more than interspecific competition; inI. cylindrica, interspecific competitionwas higher than intraspecific. As expected, total grainyield was lower in the mixture than in maize monocul-ture at all total densities. Average maize grain yield inmaize monoculture differed from that in mixtures by0.77 t ha 1in 2006 and 0.57 t ha 1in 2007. Niche differentiation indices were<1 in 2006 and>1 in 2007,indicating that both species competed for similar resources in 2006, but not in 2007. The greater com-petitive ability of maize overI. cylindricamay be associated with rapid growth and canopy development observed in the field. 2014-06 2016-07-04T08:15:21Z 2016-07-04T08:15:21Z Journal Article Chikoye, D., Ekeleme, F., Lum, A.F. & Udensi, U.E. (2014). Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria. Weed Research, 54(3), 285-292. 0043-1737 https://hdl.handle.net/10568/75906 https://doi.org/10.1111/wre.12077 en Copyrighted; all rights reserved Limited Access 285-292 Wiley Weed Research
institution CGIAR
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-cgspace
tag biblioteca
region Europa del Oeste
libraryname Biblioteca del CGIAR
language English
topic cogongras
zea mays
imperata cylindrical
cogongras
zea mays
imperata cylindrical
spellingShingle cogongras
zea mays
imperata cylindrical
cogongras
zea mays
imperata cylindrical
Chikoye, David
Ekeleme, F.
Lum, A.F.
Udensi, U.E.
Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria
description Early view
format Journal Article
topic_facet cogongras
zea mays
imperata cylindrical
author Chikoye, David
Ekeleme, F.
Lum, A.F.
Udensi, U.E.
author_facet Chikoye, David
Ekeleme, F.
Lum, A.F.
Udensi, U.E.
author_sort Chikoye, David
title Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria
title_short Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria
title_full Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria
title_fullStr Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria
title_full_unstemmed Competition between Imperata cylindrica and maize in the forest savannah transition zone of Nigeria
title_sort competition between imperata cylindrica and maize in the forest savannah transition zone of nigeria
publisher Wiley
publishDate 2014-06
url https://hdl.handle.net/10568/75906
https://doi.org/10.1111/wre.12077
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AT ekelemef competitionbetweenimperatacylindricaandmaizeintheforestsavannahtransitionzoneofnigeria
AT lumaf competitionbetweenimperatacylindricaandmaizeintheforestsavannahtransitionzoneofnigeria
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