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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
Ceballos, H.Kawuki, Robert S.Gracen, V.E.Yencho, G.C.Hershey, Clair H.[Conventional breeding, marker-assisted selection, genomic selection and inbreeding in clonally propagated crops: a case study for cassava]Conventional breeding, marker-assisted selection, genomic selection and inbreeding in clonally propagated crops: a case study for cassava

Low soil Nitrogen (low-N) is one of the most important abiotic stresses responsible for significant yield losses in maize (Zea mays. L.). The development and commercialization of low N tolerant genotypes can contribute to improved food security in developing countries. However, selection for low ...


Ribeiro, P.F.Badu-Apraku, B.Gracen, V.E.Danquah, E.Y.García Oliveira, A.L.Asante, M.D.Afriyie-Debrah, CharlesGedil, M.[Identification of QTLs for grain yield and other traits in tropical maize under high and low soil-nitrogen environments.]Identification of QTLs for grain yield and other traits in tropical maize under high and low soil-nitrogen environments.

This study assessed the genetic diversity and differentiation in sweetpotato accessions in Ghana to guide selection for genetic improvement on beta-carotene, dry matter and sugar contents to promote increased utilization. One hundred and fifteen sweetpotato accessions from four different sources,...


Baafi, E.Gracen, V.E.Blay, E.T.Ofori, K.Manu-Aduening, J.A.Carey, E.E.[Evaluation of sweetpotato accessions for end-user preferred traits improvement]Evaluation of sweetpotato accessions for end-user preferred traits improvement

Sweetpotato is used in various food preparations in place of rice, cassava, yam and plantain in Ghana. In spite of this it does not have the same importance in Ghanaian diet as other root and tuber crops. Consumer taste, preference and acceptance are critical in determining the suitability of swe...


Baafi, E.Manu-Aduening, J.A.Carey, E.E.Ofori, K.Blay, E.T.Gracen, V.E.[Constraints and breeding priorities for increased sweetpotato utilization in Ghana]Constraints and breeding priorities for increased sweetpotato utilization in Ghana

Sweetpotato (Ipomoea batatas L. (Lam)) is a nutritious food security crop for most tropical households, but its utilisation is very low in Ghana compared to the other root and tuber crops due to lack of end-user-preferred cultivars. Knowledge on the genetic control of important traits such as dry...


Baafi, E.Gracen, V.E.Manu-Aduening, J.A.Blay, E.T.Ofori, K.Carey, E.E.[Genetic control of dry matter, starch and sugar content in sweetpotato]Genetic control of dry matter, starch and sugar content in sweetpotato

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

Breeding maize (Zea mays L.) hybrids resistant to Striga and tolerant to low soil nitrogen (low-N) will reduce grain yield losses due to stresses in West Africa (WA). Studies were conducted to determine if selection for Striga resistance and/or drought tolerance in early-maturing maize population...


Ifie, B.E.Badu-Apraku, B.Gracen, V.E.Danquah, E.Y.[Genetic analysis of gain yield of IITA and CIMMYT earlymaturing maize inbreds under Strigainfested and lowsoil nitrogen environments]Genetic analysis of gain yield of IITA and CIMMYT earlymaturing maize inbreds under Strigainfested and lowsoil nitrogen environments
Njoku, DNGracen, V.E.Offei, SKAsante, I.K.Agesi, CNKulakow, P.A.Ceballos, H.[Parent-offspring regression analysis for total carotenoids and some agronomic traits in cassava]Parent-offspring regression analysis for total carotenoids and some agronomic traits in cassava

Knowledge of the heterotic responses of elite adapted and exotic maize inbred lines can facilitate their utilization for population improvement and hybrid development. In the present study, a line x tester mating design was used to determine the combining ability of 20 elite drought-tolerant maiz...


Adebayo, A.Menkir, A.Blay, E.Gracen, V.E.Danquah, E.Y.[Performance based grouping of adapted and exotic drought tolerant maize (Zea mays L) inbred lines under stressed and nonstressed conditions]Performance based grouping of adapted and exotic drought tolerant maize (Zea mays L) inbred lines under stressed and nonstressed conditions

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