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Maize (Zea mays L.) is an important food crop in the Guinea savannas of Nigeria. Despite its high production potential, drought, Striga hermonthica parasitsim, and poor soil fertility particularly nitrogen deficiency limit maize production in the savannas. Breeders at IITA have developed drought-...


Kamara, A.Ewansiha, S.U.Menkir, A.[Assessment of nitrogen uptake and utilization in drought tolerant and Striga resistant tropical maize varieties]Assessment of nitrogen uptake and utilization in drought tolerant and Striga resistant tropical maize varieties

Objective: The present study evaluated the effect of varieties and harvesting time on the physical characteristics and acceptability of boiled fresh yellow maize hybrids. Methodology and Results: Freshly harvested cobs from eight biofortified yellow maize hybrids, at three harvesting time (20, 27...


Alamu, E.O.Olaofe, O.Maziya-Dixon, B.B.Menkir, A.[Varietal and harvesting time effects on physical characteristics and sensory attributes of boiled fresh yellow maize hybrids]Varietal and harvesting time effects on physical characteristics and sensory attributes of boiled fresh yellow maize hybrids

Yield losses of maize due to drought stress (DS) in environments with limited rains can reach 100 %. Introgression of favorable alleles from diverse landraces into adapted elite varieties will improve performance, hence reducing losses. The objective of this study was to assess the performance of...


Meseka, S.K.Menkir, A.Obeng-Antwi, K.[Exploitation of beneficial alleles from maize (Zea mays L.) landraces to enhance performance of an elite variety in water stress environments]Exploitation of beneficial alleles from maize (Zea mays L.) landraces to enhance performance of an elite variety in water stress environments

There is growing interest for yellow maize among farmers and the food and feed industries in West Africa. Testing of maize hybrids in multi-location trials is crucial for identifying adapted high-yielding candidates for quick release. This study was designed to evaluate yield stability of three-w...


Meseka, S.K.Menkir, A.Olakojo, S.Jalloh, A.Coulibaly, N.Bossey, O.[Yield stability of yellow maize hybrids in the Savannas of west Africa]Yield stability of yellow maize hybrids in the Savannas of west Africa

Abstract Introduced maize (Zea mays L.) germplasmcan serve as sources of favorable alleles toenhance performance in new maize varieties andhybrids under drought stress conditions. In the presentstudy, the combining abilities of 12 exotic maizeinbred lines from CIMMYT and 12 adapted maizeinbred li...


Adebayo, M.A.Menkir, A.Blay, E.Gracen, V.E.Danquah, E.Y.Hearne, S.[Genetic analysis of drought tolerance in adapted X exotic crosses of maize inbred lines under managed stress conditions]Genetic analysis of drought tolerance in adapted X exotic crosses of maize inbred lines under managed stress conditions

Twenty elite early-maturing (75−90 days) tropical maize varieties grown in three diverse agroecologies in West Africa were evaluated to identify varieties with high kernel-Fe and -Zn and bioavailable Fe levels. Bioavailable iron was assessed using an in vitro digestion/Caco-2 cell model. Signific...


Oikeh, S.O.Menkir, A.Maziya-Dixon, B.B.Welch, R.Glahn, Raymond P.[Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties]Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties

Whether poultry litter (PL) increases concentration of selected mineral elements in corn (Zea mays L.) grain has not been well investigated. The objective of this study was to determine whether fertilizing corn with PL enriches the grain and other plant parts with selected mineral elements. Corn ...


Tewolde, H.Sistani, K.R.Feng, G.Menkir, A.[Does fertilizing corn with poultry litter enrich the grain with mineral nutrients?]Does fertilizing corn with poultry litter enrich the grain with mineral nutrients?

In the dry savanna of West and Central Africa, where unpredictable rainfall and recurrent drought are major constraints to maize production, the development of tropical maize genotypes with high and sable yields under drought is very important since access to drought-tolerant genotypes may be the...


Kamara, A.Y.Menkir, A.Badu-Apraku, B.Ibikunle, O.[Reproductive and staygreen trait response of maize hybrids, improved openpollinated varieties, and farmers local varieties to terminal drought stress]Reproductive and staygreen trait response of maize hybrids, improved openpollinated varieties, and farmers local varieties to terminal drought stress

Assessment of the stability of micronutrients is important in breeding for the enhanced nutritional quality of staple food crops as a means to alleviate malnutrition. Twenty early-maturing elite tropical maize (Zea mays L.) genotypes were evaluated over 2 years at three locations representing thr...


Oikeh, S.O.Menkir, A.Maziya-Dixon, B.B.Welch, R.M.Glahn, Raymond P.Gauch, G.[Environmental stability of iron and zinc concentrations in grain of elite earlymaturing tropical maize genotypes grown under field conditions]Environmental stability of iron and zinc concentrations in grain of elite earlymaturing tropical maize genotypes grown under field conditions

The effect of different packages and storage conditions on the retention of pro-vitamin A carotenoids (pVAC) in ogi powder produced from yellow-seeded maize was investigated to study its storage stability on micronutrient retention. The ogi powder produced was packaged in a high-density polyethyl...


Awoyale, W.Maziya-Dixon, B.B.Menkir, A.[Retention of Pro-vitamin A Carotenoids in Ogi Powder as Affected by Packaging Materials and Storage Conditions]Retention of Pro-vitamin A Carotenoids in Ogi Powder as Affected by Packaging Materials and Storage Conditions

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