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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

Vitamin A deficiency, drought, low soil nitrogen (low N) and Striga hermonthica parasitism of maize (Zea mays L.) cause malnutrition and food insecurity in sub-Saharan Africa. The objectives of this study were to determine combining abilities of extra-early provitamin A (PVA) lines, classify them...


Badu-Apraku, B.Fakorede, M.A.B.Talabi, A.O.Oyekunle, M.Aderounmu, M.Lum, A.F.Ribeiro, P.F.Adu, G.B.Toyinbo, J.O.[Genetic studies of extra-early provitamin-A maize inbred lines and their hybrids in multiple environments]Genetic studies of extra-early provitamin-A maize inbred lines and their hybrids in multiple environments

Emergence of several seed companies in the West Africa sub-region during the last decade has necessitated intensified efforts towards hybrid development and extensive testing. The objectives of the present study were to evaluate selected Striga-resistant maize (Zea mays L.) hybrids for grain yiel...


Akinwale, R.Badu-Apraku, B.Fakorede, M.A.B.[Evaluation of strigaresistant early maize hybrids and test locations under strigainfested and strigafree environments]Evaluation of strigaresistant early maize hybrids and test locations under strigainfested and strigafree environments

Badu-Apraku, B.Gedil, M.Fakorede, M.A.B.Akinwale, R.Fasanmade, Y.Annor, B.Talabi, A.O.Oyekunle, M.Akaogu, I.C.Aderounmu, M.[Gene action and heterotic groups of early white quality protein maize inbreds under multiple stress environments]Gene action and heterotic groups of early white quality protein maize inbreds under multiple stress environments

Four cycles of S1 family recurrent selection to improve grain yield and resistance to Striga hermonthica have been completed in TZE-Y Pop STR C0. In order to determine whether or not to continue with the recurrent scheme, it was desirable to evaluate the amount of residual genetic variance and as...


Badu-Apraku, B.Akinwale, R.O.Fakorede, M.A.B.Oyekunle, M.Franco, J.[Relative changes in genetic variability and correlations in an earlymaturing maize population during recurrent selection]Relative changes in genetic variability and correlations in an earlymaturing maize population during recurrent selection
Badu-Apraku, B.Fakorede, M.A.B.Oyekunle, M.Akinwale, R.[Genetic gains in grain yield under nitrogen stress following three decades of breeding for drought tolerance and Striga resistance in early maturing maize]Genetic gains in grain yield under nitrogen stress following three decades of breeding for drought tolerance and Striga resistance in early maturing maize

Striga hermonthica (Del.) Benth.is a majorbiotic constraint to increased maize (Zea mays L.) productionand productivity in West and Central Africa (WCA).Twenty-three early maize inbreds were evaluated underartificial Striga infestation and Striga-free conditions at 2locations for 2 years in Niger...


Badu-Apraku, B.Akinwale, R.O.Fakorede, M.A.B.[Selection of early maturing maize inbred lines for hybrid production using multiple traits under Strigainfested and Strigafree environments]Selection of early maturing maize inbred lines for hybrid production using multiple traits under Strigainfested and Strigafree environments

Striga and drought are major constraints to maize (Zea mays L.) production in the savannas of west and central Africa (WCA). A study was conducted in 2005 and 2006 in Nigeria to determine the level of resistance to Striga hermonthica for two early-maturing maize populations, one white and one yel...


Badu-Apraku, B.Fakorede, M.A.B.Lum, A.F.[S1 family selection in early maturing maize populations in Striga infested and Striga free environments]S1 family selection in early maturing maize populations in Striga infested and Striga free environments

Maize (Zea mays L.) production in west and central Africa (WCA) is constrained by the parasitic weed Striga hermonthica (Del.) Benth and recurrent drought. Two early maize populations, TZE-W Pop DT STR C0 (white) and TZE-Y Pop DT STR C0 (yellow), developed from diverse genetic backgrounds, were s...


Badu-Apraku, B.Lum, A.F.Fakorede, M.A.B.Menkir, A.Chabi, Y.The, C.Abdulai, M.Jacob, S.Agbaje, S.[Performance of early maize cultivars derived from recurrent selection for grain yield and Striga resistance]Performance of early maize cultivars derived from recurrent selection for grain yield and Striga resistance
Badu-Apraku, B.Menkir, A.Kling, J.G.Fakorede, M.A.B.[Registration of 16 Striga resistant early maturing tropical maize inbred lines]Registration of 16 Striga resistant early maturing tropical maize inbred lines

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