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The fate of doubled genes, from allopolyploid or autopolyploid origin, is controlled at multiple levels, resulting in the modern day cultivars. We studied the root growth of 3 different triploid banana cultivars under control and osmotic stress conditions. The root growth of the allopolyploid ABB...


Wesemael, J. vanHueber, Y.Kissel, E.Campos, N.Swennen, R.L.Carpentier, S.[Homeolog expression analysis in an allotriploid non-model crop via integration of transcriptomics and proteomics]Homeolog expression analysis in an allotriploid non-model crop via integration of transcriptomics and proteomics

Cultivar evaluation and mega-environment identification are the most important objectives of multi-environment trials (MET). The objective of this study was to assess the effect of genotype and genotype x environment interaction on the tuber yield of 18 yellow yam (D. cayenensis L.) genotypes via...


Otoo, E.Asiedu, Robert[Cultivar evaluation and megaenvironment investigation of Dioscorea cayenensis cultivars in Ghana based on the GGE Biplot analysis]Cultivar evaluation and megaenvironment investigation of Dioscorea cayenensis cultivars in Ghana based on the GGE Biplot analysis
Coyne, D.L.Tenkouano, A.[Evaluation of a method to simultaneously screen Musa germplasm against multiple nematode species]Evaluation of a method to simultaneously screen Musa germplasm against multiple nematode species

Soybean is a relatively new crop to most African smallholder farming communities. Cultivation is expanding rapidly because of its perceived potential to enhance soil fertility through biological nitrogen fixation and its source as food and cash. High N2, fixation in promiscuous soybean genotypes ...

Le soia qui est relativement une nou,relle spdculation pour la plupartdes communautes des petits expioitants d'Afrique, se d6velopperapidernent il cause de son potentiel connu d'augmentation de lafertilit€ des sols par la fixation biologique d'azote, dans l'alimentationet comme culture de rente. ...


Abaidoo, R.C.Sanginga, NteranyaOkogun, J.A.Kolawole, G.O.Tossah, B.K.Diels, J.[Genotypic variation of soybean for phosphorus use efficiency and their contribution of N and P to subsequent maize crops in three ecological zones of West Africa]Genotypic variation of soybean for phosphorus use efficiency and their contribution of N and P to subsequent maize crops in three ecological zones of West Africa

The risk of drought is high in the Sudan savannah zone of West and Central Africa because rainfall in this area is unpredictable in quantity and distribution. Thus, improved maize genotypes tolerant to drought could stabilize maize grain yield in this zone, where recurrent drought threatens grain...


Kamara, A.Y.Menkir, A.Badu-Apraku, B.Ibikunle, O.[The influence of drought stress on growth, yield, and yield components of some maize genotypes]The influence of drought stress on growth, yield, and yield components of some maize genotypes

A survey was carried out in the 1996/97 and 1997/98 growing seasons on a field planted in three replicates with five clones of cassava at the International Institute of Tropical Agriculture, Ibadan, located in a transition forest, to determine the effects of cassava genotype and climate on the de...


Abdullahi, I.Atiri, G.I.Dixon, Alfred G.O.Winter, S.Thottappilly, G.[Effects of cassava genotype, climate, and the Bemisia tabaci vector population on the development of African cassava mosaic geminivirus (ACMV)]Effects of cassava genotype, climate, and the Bemisia tabaci vector population on the development of African cassava mosaic geminivirus (ACMV)

Iron deficiency is estimated to affect over one-half the world population. Improving the nutritional quality of staple food crops through breeding for high bioavailable iron represents a sustainable and cost effective approach to alleviating iron malnutrition. Forty-nine late maturing tropical el...


Oikeh, S.O.Menkir, A.Maziya-Dixon, B.B.Welch, R.Glahn, Raymond P.[Genotypic differences in concentration and bioavailability of kerneliron in tropical maize varieties grown under field conditions]Genotypic differences in concentration and bioavailability of kerneliron in tropical maize varieties grown under field conditions

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

Soybean rust, caused by Phakopsora pachyrhizi, is one of the most important constraints to soybean production worldwide. The absence of high levels of host resistance to the pathogen has necessitated the continued search and identification of sources of resistance. In one set of experiments, 178 ...


Twizeyimana, M.Ojiambo, P.S.Ikotun, T.Ladipo, J.L.Hartman, G.L.Bandyopadhyay, Ranajit[Evaluation of soybean germplasm for resistance to soybean rust (Phakopsora pachyrhizi) in Nigeria]Evaluation of soybean germplasm for resistance to soybean rust (Phakopsora pachyrhizi) in Nigeria

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