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ShivamChauhan, V.B.Kumar, P.L.Singh, R.B.[Evaluation of pigeonpea genotypes for resistance to sterility mosaic disease]Evaluation of pigeonpea genotypes for resistance to sterility mosaic disease

Soybean rust, caused by Phakopsora pachyrhizi, is an important disease in Nigeria and many other soybean-producing countries world-wide. To determine the geographical distribution of soybean rust in Nigeria, soybean fields were surveyed in the Derived Savanna (...


Twizeyimana, M.Ojiambo, P.S.Sonder, KaiIkotun, T.Hartman, G.L.Bandyopadhyay, Ranajit[Pathogenic variation of Phakopsora pachyrhizi infecting soybean in Nigeria]Pathogenic variation of Phakopsora pachyrhizi infecting soybean in Nigeria

Gondal and extragonadal sperm reserves were determined in testicular and epididymis tissues obtained from Boran and Boran X Friesian bulls fed either a high or low plane of nutrition diet for a one-year period. The bulls were 32 months of age at castration. Mean body weights did not differ betwee...


Tegegne, AzageDembarga, Y.Kassa, T.[Gonadal and extragonadal sperm reserves in Boran and Boran X Friesian bulls raised on two planes of nutrition in the highlands of Ethiopia]Gonadal and extragonadal sperm reserves in Boran and Boran X Friesian bulls raised on two planes of nutrition in the highlands of Ethiopia

A selection programme was set up in 1983 in the Ivory Coast to improve the growth and live weight of the indigenous Djallonke sheep using an open nucleus breeding system. Selection was based on male individual weights at 80, 180 and 365 days of age. Multiple sires were used in farmers' flocks. In...


Yapi-Gnoare, C.V.Rege, J.E.O.Oya, A.Alemayehu, N.[Analysis of an open nucleus breeding programme for Djallonke sheep in the Ivory Coast. 2. Response to selection on body weights]Analysis of an open nucleus breeding programme for Djallonke sheep in the Ivory Coast. 2. Response to selection on body weights

Review on the analytical and biological testing of opaque-2 modified colombian corn hybrids in presented. The discovery of flint kernels in segregating ears opens the possibility of developing high lysine varieties with different characteristics which would increase the acceptability of modified ...


Pradilla, A.Linares, F.A.Francis, Charles AndrewFajardo, L.[El maíz de alta lisina en nutrición humana]El maíz de alta lisina en nutrición humana

Cowpea is an important food legume and versatile crop in the savannas of northeast Nigeria. Despite the high potential for production in this region, insect pests are a major constraint. A study was conducted to evaluate the response of diverse cowpea genotypes to different schedules of spraying ...


Kamara, A.Y.Chikoye, D.Omoigui, L.O.Dugje, I.Y.[Cultivar and insecticide spraying regimes effects on insect pests and grain yield of cowpea in the dry savannas of north-eastern Nigeria]Cultivar and insecticide spraying regimes effects on insect pests and grain yield of cowpea in the dry savannas of north-eastern Nigeria

Cassava, a staple food in sub-Saharan Africa, does not provide adequate amounts of pro-vitamin A (VA) carotenoids and has been targeted for biofortification (i.e. selectively breeding cultivars of increased nutrient density with agroeconomically acceptable characteristics). However, the accessibi...


Thakkar, S.K.Maziya-Dixon, B.B.Dixon, A.Failla, M.L.[Betacarotene micellarization during in vitro digestion and uptake by caco2 cells is directly proportional to betacarotene content in different genotypes of cassava]Betacarotene micellarization during in vitro digestion and uptake by caco2 cells is directly proportional to betacarotene content in different genotypes of cassava

Objective: Drought and low soil nitrogen(low N) are the most important environmental constraints contributing to yield in stability of maize (Zea mays L.). Evaluation of maize genotypes under different stresses would be useful for identifying genotypes that combine stability with high yield pote...


Meseka, S.K.Menkir, A.Ibrahim, A.[Yield potential and yield stability of maize hybrids selected for drought tolerance]Yield potential and yield stability of maize hybrids selected for drought tolerance

Nine cassava genotypes were evaluated for their growth responses and adaptability to soil moisture stress on the field and in the screen house in Nigeria. Genotypes were evaluated in three savanna agroecologies in a randomized complete block design with three replicates. Screen house evaluation w...


Aina, O.O.Dixon, Alfred G.O.Akinrinde, E.A.[Effect of soil moisture stress on growth and yield of cassava in Nigeria]Effect of soil moisture stress on growth and yield of cassava in Nigeria

Thirty-six inbred lines selected in West and Central Africa for moderate to high resistance to maize ear rot under conditions of severe natural infection were screened for resistance to aflatoxin contamination using the previously established kernel screening assay. Results showed that more than ...


Brown, R.L.Chen, Z.Y.Menkir, A.Cleveland, T.E.Cardwell, K.Kling, J.White, D.G.[Resistance to aflatoxin accumulation in kernels of maize inbreds selected for ear rot resistance in West and Central Africa]Resistance to aflatoxin accumulation in kernels of maize inbreds selected for ear rot resistance in West and Central Africa

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