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Biotic constraints (insects, diseases, parasitic weeds) and abiotic stresses (drought) are widespread and pose a constant threat to maize production worldwide. Tropical environments provide the greatest opportunity for evolution of insects and diseases because of the favourable year- round climat...


Kim, S.K.Brewbaker, J.L.Hallauer, A.[Insect and disease resistance from tropical maize for use in temperate zone hybrids]Insect and disease resistance from tropical maize for use in temperate zone hybrids

International Institute of Tropical Agriculture[IITA Maize Research Program: Annual Report 1987]IITA Maize Research Program: Annual Report 1987

Low soil nitrogen (low-N) level is responsible for yield reduction in maize (Zea mays L.) fields in sub-Saharan Africa. A clear understanding of the genetic diversity among early generation inbred lines selected from various elite low-N- tolerant populations offers an opportunity to obtain lines ...


Ajala, S.O.Olayiwola, M.O.Ilesanmi, O.J.Gedil, M.Job, A.O.Olaniyan, A.B.[Assessment of genetic diversity among low-nitrogen-tolerant early generation maize inbred lines using SNP markers]Assessment of genetic diversity among low-nitrogen-tolerant early generation maize inbred lines using SNP markers
Autor: Kim, S.K.

A parasitic weed, Striga hermonthica (Del.) Benth., infects millions of hectares of arable land in sub-Saharan Africa, and it threatens production of cereal crops. The objectives of this study were to investigate inheritance in maize (Zea mays L.) inbred lines of tolerance and resistance to S. he...


Kim, S.K.[Breeding for Striga hemonthica tolerant openpollinated maize varieties in Africa]Breeding for Striga hemonthica tolerant openpollinated maize varieties in Africa

The C57BL/6 BALB/c and A/J inbred laboratory mouse strains often express different response phenotypes when challenged with a variety of infectious agents (Morrison et al. 1978; Bradley 1977; Hormmaeche et al. 1985). In view of the pivotal role of tumor necrosis factor Tnfa in innate immunity, we...


Iraqi, F.A.Teale, A.J.[Cloning and sequencing of the Tnfa genes of three inbred mouse strains]Cloning and sequencing of the Tnfa genes of three inbred mouse strains

The value of intra- and interracial populations in common bean (Phaseolus vulgaris L.) needs to be determined in order to create useful genetic variation for maximizing gains from selection, broadening the genetic base of commercial cultivars, and making efficient use of available resources. Five...


Welsh, WBushuk, WRoca, William M.Singh, Shree P.[Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.]Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.

Maize (Zea mays L.) is an important staple food crop in West and Central Africa(WCA). However, its production is constrained by drought. Knowledge andunderstanding of the genetics of hybrid performance under drought is invaluablein designing breeding strategies for improving maize yield. One hund...


Oyekunle, M.Badu-Apraku, B.[Genetic analysis of grain yield and other traits of early maturing maize inbreds under drought and wellwatered conditions]Genetic analysis of grain yield and other traits of early maturing maize inbreds under drought and wellwatered conditions

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

Striga hermonthica and drought are the major stresses limiting maize yields in sub-Saharan Africa. The search for diverse maize lines’ tolerance to drought and resistance to S. hermonthica (DTSTHR) is very crucial for yield improvement in areas affected by the two stresses. Understanding the gene...


Mengesha, W.Menkir, A.Unachukwu, N.N.Meseka, S.K.Farinola, A.Girma Tessema, G.Gedil, M.[Genetic diversity of tropical maize inbred lines combining resistance to Striga hermonthica with drought tolerance using SNP markers]Genetic diversity of tropical maize inbred lines combining resistance to Striga hermonthica with drought tolerance using SNP markers

One hundred elite, open-pedigree tropical and subtropical inbreds of maize (Zea mays L.) that had been screened in 60 tropical trials were evaluated as inbreds and in testcrosses in Nigeria. The 24 superior inbreds among these were chosen to create two diallel sets for evaluation of grain yield a...


Kim, S.K.Ajala, S.Brewbaker, J.L.[Combining ability of tropical maize germplasm in West Africa. III. Tropical maize inbreds]Combining ability of tropical maize germplasm in West Africa. III. Tropical maize inbreds

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