A field study was conducted to determine the rate of genetic improvement in grain and fodder yields of cowpea genotypes developed in the Nigerian Sudan savannas from 1970 to 2004. Results showed that grain yield ranged from 568 kg/ha for an old variety TVX3236 to 1851 kg/ha for a recently release...
Kamara, A.Y.
,
Ewansiha, S.U.
,
Ajeigbe, Hakeem A.
,
Okechukwu, R.U.
,
Tefera, H.
,
Boukar, O.
,
Omoigui, L.O.
,
[Improvements in grain and fodder yield of cowpea (Vigna unguiculata) varieties developed in the Sudan savannas of Nigeria over the past four decades]
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Improvements in grain and fodder yield of cowpea (Vigna unguiculata) varieties developed in the Sudan savannas of Nigeria over the past four decades
Grain yields of cowpea [Vigna unguiculata (L.) Walp.] in the Nigerian savannas are low even with the cultivation of improved varieties. The recommended spacing for cowpea is 75 × 20 cm with two seeds planted per stand. This corresponds to plant population of 133333 plants ha−1, which may not be s...
Kamara, A.
,
Tofa, A.I.
,
Kyei-Boahen, S.
,
Solomon, R.
,
Ajeigbe, Hakeem A.
,
Kamai, N.
,
[Effects of plant density on the performance of cowpea in Nigerian Savannas]
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Effects of plant density on the performance of cowpea in Nigerian Savannas
Soybean (Glycine max) is a major cash crop in the savannas of Nigeria although productivity is typically constrained by poor soil fertility. The objective of this research was to determine the interactive effect of N and P on soybean productivity in the northern Guinea and Sudan savannas of north...
Kamara, A.Y.
,
Ekeleme, F.
,
Omoigui, L.O.
,
Ajeigbe, Hakeem A.
,
[Phosphorus and nitrogen fertilization of soybean in the Nigerian savanna]
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Phosphorus and nitrogen fertilization of soybean in the Nigerian savanna
The goal of this research was to evaluate diverse cowpea genotypes developed over the past 4 decades in the Nigerian
Sudan Savannas for their agronomic performance and to identify groups of cultivars with similar quantitative characters.
Characterization would facilitate the efficient synthesis o...
Kamara, A.Y.
,
Ewansiha, S.U.
,
Ajeigbe, Hakeem A.
,
Omoigui, L.O.
,
Tofa, A.I.
,
Karim, K.Y.
,
[Agronomic evaluation of cowpea cultivars developed for the West African Savannas]
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Agronomic evaluation of cowpea cultivars developed for the West African Savannas
Field experiments were conducted in 2005 and 2006 rainy season at the Institute for Agricultural Research farm, Samaru, Nigeria, to test the response of four cowpea [Vigna unguiculata (L) Walp] varieties to residual effect of four rates of sheep manure (FYM) (0, 5, 10 and 15 t/ha) applied the pre...
Babaji, B.A.
,
Yahaya, R.A.
,
Mahadi, M.A.
,
Jaliya, M.M.
,
Ajeigbe, Hakeem A.
,
Sharifai, A.I.
,
Kura, H.N.
,
Arunah, O.L.
,
Ibrahim, A.
,
[Response of cowpea [Vigna unguiculata (L) Walp] to residual effect of different application rates of sheep manure on chilli pepper (Capsicum annuum)]
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Response of cowpea [Vigna unguiculata (L) Walp] to residual effect of different application rates of sheep manure on chilli pepper (Capsicum annuum)
A trial was conducted in minjibir in the sudan savanna zone of Nigeria to evaluate the performance of common grain leguminous crops in the area. Significant differences are found among and within the grain legumes for days to flowering, maturity and ripening. Cowpea had significantly fewer days t...
Ajeigbe, Hakeem A.
,
Kamara, A.
,
Chikoye, D.
,
[Comparative performance of common grain legumes in the Sudan savanna zone of Nigeria]
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Comparative performance of common grain legumes in the Sudan savanna zone of Nigeria
Cowpea (Vigna unguiculata [L.] Walp.) is the most important grain legume in the dry savannas of West Africa, however grain and fodder yields are low (averaging 25 to 300 kg and 450 to 800 kg grain and fodder/ha, respectively) due to biotic and abiotic constraints. Improved varieties and cropping ...
Ajeigbe, Hakeem A.
,
Singh, B.
,
Kamara, A.
,
Chikoye, D.
,
Adamu, R.S.
,
Saidou, A.K.
,
Adeosun, J.O.
,
[Improving the productivities of cowpeacereal systems in the savannas of West Africa through dissemination of improved varieties and cropping systems]
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Improving the productivities of cowpeacereal systems in the savannas of West Africa through dissemination of improved varieties and cropping systems
A preliminary trial was conducted to determine if there were variabilities in seedling morphology of selected cowpea varieties and determine their heritability with aim that this could be used in future cowpea breeding for selection at seedling stage. The characters studied include hypocotyl, epi...
Ajeigbe, Hakeem A.
,
Ewansiha, S.U.
,
Singh, B.B.
,
[Preliminary evaluation of genetic variability for seedling morphology among selected varieties of cowpea [Vigna unguiculata (L.) Walp.]]
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Preliminary evaluation of genetic variability for seedling morphology among selected varieties of cowpea [Vigna unguiculata (L.) Walp.]