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.
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Akinwale, R.O.
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Ajala, S.O.
,
Menkir, A.
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Fakorede, M.A.B.
,
Oyekunle, M.
,
[Relationships among traits of tropical early maize cultivars in contrasting environments]
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Relationships among traits of tropical early maize cultivars in contrasting environments
The GGE biplot tool has potential for determining combining ability effects, identifying distinct heterotic groups and efficient testers in a line × tester study. However, its use for such analysis has not been adequately explored. The objectives of this study were to (i) assess combining ability...
Badu-Apraku, B.
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Akinwale, R.O.
,
[Biplot analysis of line X tester data of maize (Zea mays L.) inbred lines under stress and nonstress environments]
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Biplot analysis of line X tester data of maize (Zea mays L.) inbred lines under stress and nonstress environments
Maize (Zea mays L.) is an important staple food consumed by people with varying food preferences and socioeconomic backgrounds in West Africa (WA). Genotype by environment interactions (G×E) exist in WA implying the need for extensive testing of cultivars in multiple environments over years befor...
Badu-Apraku, B.
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Akinwale, R.O.
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Menkir, A.
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Obeng-Antwi, K.
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Osuman, A.S.
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Coulibaly, N.
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Onyibe, J.E.
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Yallou, G.C.
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Abdullai, M.S.
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Didjera, A.
,
[Use of GGE biplot for targeting early maturing maize cultivars to mega environments in West Africa]
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Use of GGE biplot for targeting early maturing maize cultivars to mega environments in West Africa
Maize (Zea mays L.) hybrids resistant to Striga hermonthica (Del) Benth and tolerant to drought are vital to the sustainability of productivity of the maize-based farming systems of West and Central Africa (WCA). Thirty-six diallel crosses derived from nine early maturing white maize inbreds were...
Badu-Apraku, B.
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Oyekunle, M.
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Akinwale, R.O.
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Lum, A.F.
,
[Combining ability of earlymaturing white maize inbreds under stress and nonstress environments]
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Combining ability of earlymaturing white maize inbreds under stress and nonstress environments
Badu-Apraku, B.
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Fakorede, M.A.B.
,
Akinwale, R.O.
,
[Key challenges in maize breeding in sub-Saharan Africa]
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Key challenges in maize breeding in sub-Saharan Africa
Maize hybrids that are tolerant to drought at the seedling stage are needed to boost productivity in the rainforest agro-ecology of West Africa. Genetics of tolerance of maize seedling to drought stress is not well understood and is poorly documented. The objectives of this study were to screen e...
Adewale, S.A.
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Akinwale, R.O.
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Fakorede, M.A.B.
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Badu-Apraku, B.
,
[Genetic analysis of drought-adaptive traits at seedling stage in early-maturing maize inbred lines and field performance under stress conditions]
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Genetic analysis of drought-adaptive traits at seedling stage in early-maturing maize inbred lines and field performance under stress conditions
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]
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Relative changes in genetic variability and correlations in an earlymaturing maize population during recurrent selection
Akinwale, R.O.
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Badu-Apraku, B.
,
Fakorede, M.A.B.
,
[Evaluation of striga-resistant early maize hybrids and test locations under striga-infested and striga-free environments]
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Evaluation of striga-resistant early maize hybrids and test locations under striga-infested and striga-free environments
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]
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Selection of early maturing maize inbred lines for hybrid production using multiple traits under Strigainfested and Strigafree environments
Striga gesnerioides (Willd) Vatke, is a major destructive parasitic weed of cowpea (Vigna unguiculata (L.) Walp.) which causes substantial yield reduction in West and Central Africa. The presence of different virulent races within the parasite population contributes to significant genotype × envi...