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Low maize yields and the impacts of climate change on maize production highlight the need to improve yields in eastern and southern Africa. Climate projections suggest higher temperatures within drought-prone areas. Research in model species suggests that tolerance to combined drought and heat st...


Cairns, Jill E.Crossa, J.Zaidi, P.H.Grudloyma PSánchez, C.Araus, J.L.Makumbi, DanMagorokosho, C.Bänziger, MarianneMenkir AHearne SAtlin, Gary[Identification of drought, heat and combined drought and heat tolerant donors in maize (Zea mays L.)]Identification of drought, heat and combined drought and heat tolerant donors in maize (Zea mays L.)

Wheat is an important food and income source and estimated demand for wheat in the developing world is projected to increase substantially. The objectives of this study were to gain insight into (i) the effect of tillage straw system on yield and yield components (number of grains per m2 and thou...


Verhulst, NeleSayre KDVargas, M.Crossa, J.Deckers, J.Raes, DirkGovaerts, Bram[Wheat yield and tillage-straw management system × year interaction explained by climatic co-variables for an irrigated bed planting system in northwestern Mexico]Wheat yield and tillage-straw management system × year interaction explained by climatic co-variables for an irrigated bed planting system in northwestern Mexico

Drought occurs at high frequency in maize production zones in Africa. Carefully controlled moisture deficits have been imposed at anthesis and grain filling stages of maize to develop drought tolerant germplasm. The present study was conducted to examine the potential effects of drought tolerant ...


Menkir, A.Crossa, J.Meseka, S.K.Bossey, B.Ado, S.G.Obeng-Antwi, K.Yallou, C.Coulibaly, N.Olaoye, G.Alidu, H.[Comparative performance of top-cross maize hybrids under managed drought stress and variable rainfed environments]Comparative performance of top-cross maize hybrids under managed drought stress and variable rainfed environments

Cultivars are often recommended to producers based on their averaged yields across sites within a geographic region. However, this geography-based approach gives little regard to the fact that not all sites in a given region have the same level of production capacity. The objective of this paper ...


Yang, R.Blade, S.Crossa, J.Stanton, D.Bandara, M.[Identifying isoyield environments for field pea production]Identifying isoyield environments for field pea production

Vitamin A Deficiency (VAD) is a major public health problem in Sub-Saharan Africa affecting 33 million preschool-age children. Enrichment of maize varieties with provitamin A could provide sustainable and affordable solution to VAD. This study was conducted to understand the extent of GEI effects...


Mengesha Abera, W.Menkir, A.Meseka, S.Bossey, B.Afolabi, A.Burgueno, J.Crossa, J.[Factor analysis to investigate genotype and genotype X environment interaction effects on pro-vitamin A content and yield in maize synthetics]Factor analysis to investigate genotype and genotype X environment interaction effects on pro-vitamin A content and yield in maize synthetics

Marker-assisted recurrent selection (MARS) is a breeding method used to accumulate favorable alleles that for example confer tolerance to drought in inbred lines from several genomic regions within a single population. A bi-parental cross formed from two parents that combine resistance to Striga ...


Abdulmalik, R.O.Menkir, A.Meseka, S.K.Unachukwu, N.N.Ado, S.G.Olarewaju, J.D.Aba, D.A.Hearne, S.Crossa, J.Gedil, M.[Genetic gains in grain yield of a maize population improved through marker assisted recurrent selection under stress and non-stress conditions in west Africa]Genetic gains in grain yield of a maize population improved through marker assisted recurrent selection under stress and non-stress conditions in west Africa

The objective of marker assisted recurrent selection (MARS) is to increase the frequency of favorable marker alleles in a population before inbred line extraction. This approach was used to improve drought tolerance and grain yield (GY) in a biparental cross of two elite drought tolerant lines. T...


Bankole, F.Menkir, A.Olaoye, G.Crossa, J.Hearne, S.Unachukwu, N.N.Gedil, M.[Genetic gains in yield and yield related traits under drought stress and favorable environments in a maize population improved using marker assisted recurrent selection]Genetic gains in yield and yield related traits under drought stress and favorable environments in a maize population improved using marker assisted recurrent selection

A numerical classification problem encountered by breeders and gene-bank curators is how to partition the original heterogeneous population of genotypes into non-overlapping homogeneous subpopulations. The measure of distance that may be defined depends on the type of variables measured (i.e., co...


Franco, J.Crossa, J.Desphande, S.[Hierarchical multiple-factor analysis for classifying genotypes based on phenotypic and genetic data]Hierarchical multiple-factor analysis for classifying genotypes based on phenotypic and genetic data
Velu, G.Singh, R.P.Huerta-Espino, J.Peña, R.J.Crossa, J.Andersson, Meike S.Pfeiffer, Wolfgang H.[Breeding progress and genotype × environment interaction for zinc concentration in CIMMYT spring wheat germplasm]Breeding progress and genotype × environment interaction for zinc concentration in CIMMYT spring wheat germplasm
Velu, G.Singh, R.P.Huerta-Espino, J.Peña, R.J.Arun, B.Mahendru-Singh, A.Mujahid, M. YaqubSohu, V.S.Mavi, G.S.Crossa, J.Alvarado, G.Joshi, Arun K.Pfeiffer, Wolfgang H.[Performance of biofortified spring wheat genotypes in target environments for grain zinc and iron concentrations]Performance of biofortified spring wheat genotypes in target environments for grain zinc and iron concentrations

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