Simulation models have the potential of greatly enhancing decision-making by farmers and researchers in Nigeria. These models however, need to be adapted before use. This study was conducted to test the phenology module of CERES-Maize model version 3.5 under varying N rates as a step toward adapt...
Gungula, D.T.
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Kling, J.
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Togun, A.
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[CERES-maize predictions of maize phenology under nitrogenstressed conditions in Nigeria]
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CERES-maize predictions of maize phenology under nitrogenstressed conditions in Nigeria
Yam (Dioscorea spp., family Dioscoreaceae) is one of the most important food crops cultivated in the West African yam zone comprising the forest and savannah areas of Nigeria, Ghana, Cote d'Ivoire, Republic of Benin, and Togo, which account for more than 90% of the 4.59 million ha of yam cultivat...
Daniel, I.
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Ng, N.Q.
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Tayo, T.
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Togun, A.
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[West African yam seeds stored under desiccated and cold storage conditions are orthodox]
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West African yam seeds stored under desiccated and cold storage conditions are orthodox
With limited access to P fertilizers, soybean (Glycine max (L.) Merr.) varieties cultivated in the moist savanna zone of West Africa should use P as efficiently as possible. Field trials were conducted on the effect of P application on grain yield per unit P accumulated (physiological efficiency ...
Ogoke, I.
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Togun, A.
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Dashiell, Kenton E.
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[Soybean phosphorus-use efficiency in the moist Savanna of West Africa]
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Soybean phosphorus-use efficiency in the moist Savanna of West Africa
The leaf is the site of photosynthetic activities and crop productivity is controlled by the sizes and efficiency of leaves. Leaf development in cassava can be dependent on genetic makeup of the plant and it is sensitive to temperature. The aim of this study was to quantify the relationships betw...
Akparobi, S.
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Togun, A.
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Ekanayake, I.J.
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[Temperature effects on leaf growth of cassava (Manihot esculenta Crantz) in controlled environments]
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Temperature effects on leaf growth of cassava (Manihot esculenta Crantz) in controlled environments
Cultivated cassava (Manihot esculenta Crantz) genotypes are relatively sensitive to low temperature stress injury. The objective of this field study was to elucidate tuberous root development and growth differences among improved and local genotypes under lowland (higher seasonal temperature) and...
Akparobi, S.O.
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Ekanayake, I.J.
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Togun, A.
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[Genotypic variability for cassava tuberous root development in two lowaltitude and midaltitude savanna sites of Nigeria]
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Genotypic variability for cassava tuberous root development in two lowaltitude and midaltitude savanna sites of Nigeria
Twelve cassava (Manihot esculenta crantz) genotypes were grown at two field sites in Nigeria representing lowland and mid-altitude agroecological zones from 1994 to 1996 (Ibadan and Jos). Leaf area development and dry matter partitioning were studied by the destructive growth analyses at 3, 6, 9,...
Akparobi, S.
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Ekanayake, I.J.
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Togun, A.
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[The effect of weather regimes on the leaf area development and dry matter production in cassava]
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The effect of weather regimes on the leaf area development and dry matter production in cassava