A North Carolina design II experiment, with three improved cassava (Mctnihot esculenta Crantz) accessions as the female parents, l5 cassava landraces and three improved cassava accessions as the male parents (3 x I 8), was evaluated in three environments in Nigeria to determine the mode of gene a...
Lokko, Y.
,
Dixon, Alfred G.O.
,
Offei, S.
,
Danquah, E.Y.
,
[Combining ability analysis of resistance to mosaic virus disease in cassava]
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Combining ability analysis of resistance to mosaic virus disease in cassava
Geo-referenced surveys were conducted in 2001 and 2003 to assess the prevalence and severity of
cassava bacterial blight (CBB) and cassava anthracnose disease (CAD) in different agro-ecological
zones of Nigeria. A total of 132 fields were visited in 2001 as follow: humid forest (HF) 42, derived
s...
Onyeka, T.J.
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Owolade, O.F.
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Ogunjobi, A.A.
,
Dixon, Alfred G.O.
,
Okechukwu, R.U.
,
Bamkefa, B.
,
[Prevalence and severity of bacterial blight and anthracnose diseases of cassava in different agroecological zones of Nigeria]
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Prevalence and severity of bacterial blight and anthracnose diseases of cassava in different agroecological zones of Nigeria
The effects of genotype (G), environment (E), and G x E interaction on carotenoid concentration and yield of 25 yellow-fleshed (YF) and three white-fleshed (WF) cassava genotypes were investigated at five locations in Nigeria for two consecutive cropping seasons. The locations represented the maj...
Ssemakula, G.N.
,
Dixon, Alfred G.O.
,
Maziya-Dixon, B.B.
,
[Stability of total carotenoid concentration and fresh yield of selected yellow-fleshed cassava (Manihot esculenta Crantz)]
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Stability of total carotenoid concentration and fresh yield of selected yellow-fleshed cassava (Manihot esculenta Crantz)
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]
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Root rot resistance in new cassava varieties introduced to farmers in Nigeria
Cassava is an appropriate commodity to feature in Africa’s future economic development. As the crop rapidly changes from a basic foodstuff to a source of income and employment for rural populations, there is a parallel need to increase productivity, marketing opportunities and profitability. This...
Dixon, Alfred G.O.
,
Ssemakula, G.N.
,
[Prospects for cassava breeding in subSaharan Africa in the next decade]
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Prospects for cassava breeding in subSaharan Africa in the next decade
Ten new cassava genotypes selected for high yield and tolerance to some biotic stresses were evaluated alongside the local best, Otupam and ‘TMS 30572\' (a widely cultivated hybrid genotype, as an improved check) for two cropping seasons with a view to obtaining suitable genotype(s) that could be...
Baiyeri, K.P.
,
Edibo, G.O.
,
Obi, I.U.
,
Ogbe, F.O.
,
Egesi, Chiedozie N.
,
Eke-Okoro, O.N.
,
Okogbenin, Emmanuel
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Dixon, Alfred G.O.
,
[Growth, yield and disease responses of 12 cassava genotypes evaluated for two cropping seasons in a derived savannah zone of southeastern Nigeria]
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Growth, yield and disease responses of 12 cassava genotypes evaluated for two cropping seasons in a derived savannah zone of southeastern 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]
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Genetic gains from 30 years of cassava breeding in Nigeria for storage root yield and disease resistance in elite cassava genotypes
The study evaluated the iron bioavailability and utilization in rats fed cassava-based complementary diets. Bioavailability and utilization were
determined in Sprague-Dawley rats using the iron balance and hemoglobin depletion-repletion methods in a 6 x 8 randomized block design. Rats
were deplet...
Onabanjo, O.O.
,
Maziya-Dixon, B.B.
,
Oguntona, C.R.
,
Olayiwola, I.O.
,
Oguntona, B.E.
,
Dixon, Alfred G.O.
,
[Iron bioavailability and utilization in rots fed cassava based complementary diets]
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Iron bioavailability and utilization in rots fed cassava based complementary diets
Eleven Nigerian cassava landraces with desirable pest and disease resistance were evaluated for 18 agronomic and tuber quality traits along with two popularly grown cultivars including an improved genotype. The improved cultivar TMS 30572 gave the highest yield, but had certain undesirable qualit...
Cassava mosaic disease (CMD) caused by African cassava mosaic virus (ACMV) and East African cassava mosaic Cameroon virus (EACMCV) is the major constraint to cassava production in Nigeria. Sequences of the DNA-A component of ACMV and EACMCV isolates from leguminous plant species (Senna occidental...