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In 2004 and 2005 through field trials in over 2500 locations in several agroecological zones, 40 new cassava varieties were introduced in Nigeria. The trials were managed by scientists, extension workers and farmers. The aim in introducing these new varieties was to pre-emptively manage cassava m...


Okechukwu, R.U.Dixon, Alfred G.O.Akoroda, M.O.Mwangi, M.Bandyopadhyay, Ranajit[Root rot resistance in new cassava varieties introduced to farmers in Nigeria]Root rot resistance in new cassava varieties introduced to farmers in Nigeria

Cassava (Manihot esculenta Crantz) is crucial for both food security and poverty alleviation in Sub-Saharan Africa (SSA). Cassava improvement for SSA started at the International Institute of Tropical Agriculture in 1970, and several improved lines with different characteristics have been develop...


Okechukwu, R.U.Dixon, Alfred G.O.[Genetic gains from 30 years of cassava breeding in Nigeria for storage root yield and disease resistance in elite cassava genotypes]Genetic gains from 30 years of cassava breeding in Nigeria for storage root yield and disease resistance in elite cassava genotypes

Cassava mosaic disease (CMD) is a widespread viral disease that causes high yield losses in susceptible genotypes in Sub-Saharan Africa. Effective control of CMD is beneficial and justifiable since cassava is an important source of carbohydrates for over 200 million people in most African countri...


Dixon, Alfred G.O.Ogbe, F.O.Okechukwu, R.U.[Cassava mosaic disease in Sub-Saharan Africa: a feasible solution for an unsolved problem]Cassava mosaic disease in Sub-Saharan Africa: a feasible solution for an unsolved problem

The use of financial and input-credit support to promote agriculture was a key intervention strategy aimed at enhancing productivity, reducing poverty, promoting standard of living of the smallholder farmers and fostering the development of the rural sectors. However, the ability of the lending a...


Ojiako, I.A.Okechukwu, R.U.Olaitan, T.[Econometric analysis of loan repayment competence of smallholder cassava farmers in Yewa area, Ogun State, Nigeria]Econometric analysis of loan repayment competence of smallholder cassava farmers in Yewa area, Ogun State, Nigeria

An advanced time series econometric technique was used to study the interaction between the prices of fermented flour, a popular cassava-based food product also called lafun, in typical urban-demand and ruralsupply markets in Nigeria. The price data cover 95 weeks from week 37 of 2004 to week 28 ...


Ojiako, I.Ezedinma, C.Asumugha, G.N.Okechukwu, R.U.[Spatial integration and price transmission in selected cassava products markets in Nigeria: a case of gari]Spatial integration and price transmission in selected cassava products markets in Nigeria: a case of gari

An advanced time series econometric technique was used to study the interaction between the prices of fermented flour, a popular cassava-based food product also called lafun, in typical urban-demand and ruralsupply markets in Nigeria. The price data cover 95 weeks from week 37 of 2004 to week 28 ...


Ojiako, I.A.Tarawali, G.Ezedinma, C.Okechukwu, R.U.[Spatial integration and price transmission in selected rural and urban markets for cassava fresh roots in Nigeria]Spatial integration and price transmission in selected rural and urban markets for cassava fresh roots in Nigeria

Field experiments were conducted at Ajibode area in Ibadan to investigate the effects of organomineral fertilizer (OF) and NPK fertilizer treatments on the growth and yield of two cassava varieties: TMS 30572 and TMS 92/0326. Five rates of OF (1.5, 2.5, 3.5, 4.5, 6.0 t/ha), NPK 15:15:15 at 600 kg...


Edet, M. A.Tijani-Eniola, H.Okechukwu, R.U.[Comparative evaluation of organomineral fertilizer and NPK 151515 on growyh and yield of cassava varieties in Ibadan, southwestern Nigeria]Comparative evaluation of organomineral fertilizer and NPK 151515 on growyh and yield of cassava varieties in Ibadan, southwestern Nigeria

An automatic fish feeder was designed, fabricated and tested. It eliminates major problems associated with manual feeding in aquaculture. The machine was powered electrically by one horse power motor. The overall dimension of the machine is 62 × 45 × 45cm. The hopper carrying capacity is 5.5kg/vo...


Ozigbo, E.Anyadike, C.Gbadebo, F.Okechukwu, R.U.[Development of an automatic fish feeder]Development of an automatic fish feeder

The associations between the production and some of the variously-debated factors that have the tendency to influence it, including cultivated land area, yield, and climatic conditions, were investigated for yams (Discora Roundata), a leading tuber crop in Nigeria. Secondary data collected from t...


Ojiako, I.Tarawali, G.Akwarandu, B.Okechukwu, R.U.Idowu, A.[Analysis of relationships between production of yam [Dioscorea spp.] and its determinants in Nigeria: a cointegration approach]Analysis of relationships between production of yam [Dioscorea spp.] and its determinants in Nigeria: a cointegration approach

Field experiments were conducted to investigate the effects of application and residues of organomineral and NPK fertilizers on two cassava varieties in a tropical alfisol in Ibadan, southwestern Nigeria in 2007, 2008 and 2009. Five Organomineral Fertilizer (OF) rates (1.5, 2.5, 3.5, 4.5 and 6.0 ...


Edet, M.Tijani-Eniola, H.Okechukwu, R.U.[Residual effects of fertilizer application on growth and yield of two cassava varieties in Ibadan, southwestern Nigeria]Residual effects of fertilizer application on growth and yield of two cassava varieties in Ibadan, southwestern Nigeria

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