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Improving maize productivity in the savannas of West Africa will depend on improving soil fertility and ensuring the efficient use of inputs and the relevant maize varieties tolerant to low nitrogen (N) that have been developed for this region. Several cycles of full-sib family selection that com...


Ajala, S.Kling, J.Menkir, A.[Full-Sib family selection in maize populations for tolerance to low soil nitrogen]Full-Sib family selection in maize populations for tolerance to low soil nitrogen
Adebayo, M.A.Menkir, A.Gedil, M.Blay, E.Gracen, V.E.Danquah, E.Y.Funmilayo, L.[Diversity assessment of drought tolerant exotic and adapted maize (Zea mays L.) inbred lines with microsatellite markers]Diversity assessment of drought tolerant exotic and adapted maize (Zea mays L.) inbred lines with microsatellite markers

Secondary traits can improve precision with which drought or low soil nitrogen (low-N) tolerant maize (Zea mays L.) genotypes are identified, compared to measuring only grain yield under each stress. The objective of this study was to identify secondary traits for indirect selection for yield imp...


Badu-Apraku, B.Akinwale, R.O.Ajala, S.O.Menkir, A.Fakorede, M.A.B.Oyekunle, M.[Relationships among traits of tropical early maize cultivars in contrasting environments]Relationships among traits of tropical early maize cultivars in contrasting environments

Maize improvement at the International Institute of Tropical Agriculture (IITA), which began in the 1970s, built on the germplasm and experience of earlier years. The main breeding emphasis was to develop maize cultivars and hybrids with high yield potential and durable resistance to diseases and...


Kamara, A.Y.Menkir, A.Fakorede, M.A.B.Ajala, S.O.Badu-Apraku, B.Kureh, I.[Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa]Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa

Drought occurrence and striga hermonthica (Del.) Benth infestation are formidable maize (Zea mays L.) production constriants in the savanna zones of West and Central Africa (WCA). The West and Central Africa collaborative Maize Research Network (WECAMAN), in collaboration with the International I...


Badu-Apraku, B.Fakorede, M.A.B.Menkir, A.Kamara, A.Y.Akanvou, L.Chabi, Y.[Response of early maturing maize to multiplestresses in the Guinea savanna of West and Central Africa]Response of early maturing maize to multiplestresses in the Guinea savanna of West and Central Africa

Maize production is constrained by Striga hermonthica in Mali leading to high yield losses. Breeding resistant hybrid maize is a promising alternative for increasing farmers’ income. The objective of this study was to evaluate the response of test crosses to Striga hermonthica and identify high y...


Sangaré, S.Menkir, A.Ofori, K.Gracen, V.[Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize]Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize

Two improved tropical maize composites, TZL COMP3 and TZL COMP4; representing complementary heterotic pools have been subjected to four cycles of reciprocal recurrent selection (RRS) for two decades to enhance varietal cross performance. The objectives of this study were to evaluate the effect of...


Kolawole, A.O.Menkir, A.Blay, E.Ofori, K.Kling, J.G.[Changes in heterosis of maize (Zea mays L.) varietal cross hybrids after four cycles of reciprocal recurrent selection]Changes in heterosis of maize (Zea mays L.) varietal cross hybrids after four cycles of reciprocal recurrent selection

The need to evaluate the effects of packaging materials and storage conditions on the degradation of xanthophylls in yellow maize ogi powder is important due to its health implication. Ogi powder was packaged in high-density polyethylene bag (HDPE), polypropylene woven sack (PP), and polyvinyl ch...


Awoyale, W.Maziya-Dixon, B.B.Alamu, E.O.Menkir, A.[Effect of packaging materials and storage conditions on the degradation of xanthophylls in yellow-maize ogi powder]Effect of packaging materials and storage conditions on the degradation of xanthophylls in yellow-maize ogi powder

During the past 45 years, the genetic improvement programs of IITA and its partners have made spectacular progress in developing high-yielding crop varieties that offered best-bet solutions to major production constraints, such as, cassava mosaic, maize streak, Striga, soybean rust, insect pests,...


Ajala, S.Badu-Apraku, B.Menkir, A.[Maize genetic improvement for enhanced productivity gains in West and Central Africa]Maize genetic improvement for enhanced productivity gains in West and Central Africa

The development of hybrids with enhanced expression of heterosis depends on the genetic background of the source population and the effectiveness of a breeding scheme used to identify and use divergent inbred lines with good combining ability. The present study was conducted to examine the potent...


Menkir, A.Kling, J.G.Anjorin, B.Ladejobi, F.Gedil, M.[Evaluating testcross performance and genetic divergence of lines derived from reciprocal tropical maize composites]Evaluating testcross performance and genetic divergence of lines derived from reciprocal tropical maize composites

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