An outline is given of the progress made in a systematic breeding programme set up in Nigeria to develop improved cowpea cultivars with combined resistance to Striga gesnerioides and Alectra vogelii along with multiple disease and insect resistance. Several sources of resistance to both parasitic...
Trypsin inhibitor content was determined in the seeds of 21 cowpea (Vigna unguiculata) lines (10 known to be resistant to Callosobruchus maculatus and 11 susceptible) whilst fatty acid composition was determined in 58 lines (11 resistant and 47 susceptible). A wide range in trypsin inhibitor cont...
Phenolic compounds were analysed in leaf samples from 9 lines known to be resistant or susceptible to aphids (mainly Aphis craccivora but also, to a lesser extent, A. fabae). Resistant lines TVu3000, IT84E and IT83S742 had higher flavonoid glycoside contents than the susceptible lines VITA7, TVu3...
Lattanzio, V.
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Linsalata, V.
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Maruca, G.
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Marullo, R.
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Singh, B.B.
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Singh, S.R.
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Perrino, P.
,
[Preexisting phenols and resistance to aphid in cowpea (Vigna unguiculata [L.] Walp.)]
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Preexisting phenols and resistance to aphid in cowpea (Vigna unguiculata [L.] Walp.)
Cowpea is important for the provision of both grain for food and fodder for livestock but there is often a trade-off between productions of two. To better understanding influences on grain and fodder production, and how these may be influences on grain and fodder production, and two these may be ...
Tarawali, S.A.
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Singh, B.B.
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Fernández Rivera, S.
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Peters, M.
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Smith, J.W.
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Schultze-Kraft, Rainer
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Ajeigbe, Hakeem A.
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[Optimizing the contribution of cowpea to food and fodder production in croplivestock systems in West Africa]
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Optimizing the contribution of cowpea to food and fodder production in croplivestock systems in West Africa
Agriculture in the dry savannas is intensifying in response to increasing populations of humans and livestock. As a result, increased productivity demands are placed upon integrated crop-livestock systems and more emphasis is on the roles of legumes such as cowpea. Cowpea has the potential to fun...
Tarawali, Shirley A.
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Singh, B.B.
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Gupta, S.C.
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Tabo, Ramadjita
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Harris, F.
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Nokoe, S.
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Fernández Rivera, S.
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Bationo, B. André
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Manyong, Victor M.
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Makinde, K.
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Odion, E.C.
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[Cowpea as a key factor for a new approach to integrated crop-livestock systems research in the dry savannas of West Africa]
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Cowpea as a key factor for a new approach to integrated crop-livestock systems research in the dry savannas of West Africa
Phosphorus is important for cowpea production in many tropical African soils with inherent low P fertility. Most farmers in Africa, however, do not have access to P fertilizer. Selection of cowpea lines that produce good yield under low soil P or those with high P-use efficiency can be a low inpu...
Kolawole, G.O.
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Tian, G.
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Singh, B.B.
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[Differential response of cowpea lines to application of P fertilizer]
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Differential response of cowpea lines to application of P fertilizer
Success in breeding for cowpea with drought tolerance has not been as pronounced as for many other traits. This is partly due to lack of simple, cheap, and reliable screening methods to select drought-tolerant plants and progenies from the segre gating populations and partly due to the complexity...
Most of the farmers in the dry savannas of West Africa 'plant local varieties of cowpea, millet, sorghum, and groundnut in various intercropping systems with little or no purchased inputs. In this system, the cowpea and groundnut yields are low due to shading by cereals and lack of plant protecti...
Singh, B.B.
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Ajeigbe, Hakeem A.
,
[Improving cowpea cereals based cropping systems in the dry savannas of West Africa]
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Improving cowpea cereals based cropping systems in the dry savannas of West Africa
Two parasitic flowering plants, Striga gesnerioides (Wild.) Vatke and Alectra vogelii (Benth.), cause substantial yield reduction in cowpea in the dry savannas of sub-Saharan Africa. Alectra is more prevalent in the northern Guinea savanna and southern Sudan savanna of West Africa, as well as in ...
Singh, B.B.
,
[Breeding cowpea varieties for resistance to Striga gesnerioides and Alectra vogelii]
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Breeding cowpea varieties for resistance to Striga gesnerioides and Alectra vogelii
Considerable progress has been made in breeding improved cowpea varieties in the last five years. The major breeding objectives were to develop high yielding cowpea varieties for sole cropping as well as intercropping with acceptable seed types and resistance to major diseases, insect pests, nema...