Plant architecture and N fertilizer may limit the performance of intercropped maize (Zea mays L.) and cowpea [Vigna unguiculata (L.) Walpers] cultivars. This paper describes an experiment in which cultivars of maize and cowpea were intercropped and fertilized with varying rates of N. The cowpea c...
Ezumah, H.C.
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Nam, N.K.
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Walker, P.
,
[Maize-cowpea intercropping as affected by nitrogen fertilization]
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Maize-cowpea intercropping as affected by nitrogen fertilization
The success of inland valley crop production in humid and subhumid areas of subSaharan Africa depends on the availability of appropriate crop varieties with some tolerance to excess moisture. Performance of upland crop associations [cassava (Manihot esculenta) + sweet potato (Ipomoea batatas) and...
Carsky, R.J.
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Walker, P.
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Hauser, S.
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Dashiell, Kenton E.
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Dixon, A.
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[Response of selected crop associations to groundwater table depth in an inland valley]
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Response of selected crop associations to groundwater table depth in an inland valley
Twelve samples of Striga hermonthica seed were collected from four host crops [millet (4), sorghum (4), a sorghum/millet intercrop (3) and maize (1)] from all the main areas of S. hermonthica infestation in Nigeria and were tested on eight genotypes of three test crops [maize (4), sorghum (2) and...
Kim, S.K.
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Akintunde, A.
,
Walker, P.
,
[Responses of maize, sorghum and millet host plants infestation by Striga hemonthica]
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Responses of maize, sorghum and millet host plants infestation by Striga hemonthica
Plant architecture and N fertilizer may limit the performance of intercropped maize (Zea mays L.) and cowpea [Vigna unguiculata (L.) Walpers] cultivars. This paper describes an experiment in which cultivars of maize and cowpea were intercropped and fertilized with varying rates of N. The cowpea c...
Recent successes in the conventional cross-breeding of plantains and cooking bananas by genetic improvement programmes will inevitably lead to an increase in the number of new clones that require testing before release to farmers. In most cases testing focused on disease resistance and yield but ...
Korie, S.
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Walker, P.
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Ortiz, R.
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Vuylsteke, D.R.
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Ferris, R.S.B.
,
[Statistical tools to evaluate sensory data fro testing fruit quality of Musa]
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Statistical tools to evaluate sensory data fro testing fruit quality of Musa
Everett, L.
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Eta-Ndu, J.T.
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Ndioro, M.
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Walker, P.
,
[Combining ability among source populations for tropical midaltitude maize inbreds]
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Combining ability among source populations for tropical midaltitude maize inbreds
Farmer-managed trials in developing countries often show great variability in yield and treatment effects. The use of statistical techniques is demonstrated to explain this variability in a maize + cassava intercropping trial in southwestern Nigeria. Concomitant variables, measured in the trial f...
Mutsaers, H.J.W.
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Walker, P.
,
[Farmers maize yields in S.W. Nigeria and the effect of variety and fertilizer: an analysis of variability in onfarm trials]
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Farmers maize yields in S.W. Nigeria and the effect of variety and fertilizer: an analysis of variability in onfarm trials