Search Results - "Onyeka, T. J."

An intraspecific genetic map of water yam (Dioscorea alata L.) based on AFLP markers and QTL analysis for anthracnose resistance by Petro, D., Onyeka, T. J., Etienne, S., Rubens, S.

“…Water yam ( Dioscorea alata L.) is the most widely cultivated food yams. Despite its importance, its production is limited by anthracnose disease caused by…”
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Resistance in water yam (Dioscorea alata) cultivars in the French West Indies to anthracnose disease based on tissue culture-derived whole-plant assay by Onyeka, T.J, Pétro, D, Ano, G, Etienne, S, Rubens, S

“…Reactions of 60 water yam (Dioscorea alata) cultivars to three isolates of the yam anthracnose fungal pathogen (Colletotrichum gloeosporioides) were evaluated…”
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Identification of levels of resistance to cassava root rot disease (Botryodiplodia theobromae) in African landraces and improved germplasm using in vitro inoculation method by ONYEKA, T. J, DIXON, A. G. O, EKPO, E. J. A

“…Cassava root rot disease is an increasing problem in Africa where yield losses of about 80% have been recorded. We evaluated 290 African landraces and 306…”
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Optimizing Controlled Environment Assessment of Levels of Resistance to Yam Anthracnose Disease Using Tissue Culture-derived Whole Plants by Onyeka, T.J, Petro, D, Etienne, S, Jacqua, G, Ano, G

“…Studies were conducted to determine the timing and frequency of disease assessment required to effectively identify levels of resistance to yam anthracnose…”
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Virulence and host-pathogen interaction of Botryodiplodia theobromae isolates of cassava root rot disease by Onyeka, T.J, Ekpo, E.J.A, Dixon, A.G.O

“…Pathogenic variation of Botryodiplodia theobromae, the cause of cassava root rot disease in Nigeria, was evaluated with 84 isolates from three different…”
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Assessment of laboratory methods for evaluating cassava genotypes for resistance to root rot disease by Onyeka, T.J, Dixon, A.G.O, Ekpo, E.J.A

“…Field evaluation of six cassava genotypes for resistance to root rot disease was compared with three rapid laboratory methods (whole root inoculation, root…”
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Cyclic lipopeptide‐producing Pseudomonas koreensis group strains dominate the cocoyam rhizosphere of a Pythium root rot suppressive soil contrasting with P. putida prominence in conducive soils by Oni, Feyisara Eyiwumi, Geudens, Niels, Onyeka, Joseph T., Olorunleke, Oluwatoyin Faith, Salami, Ayodeji Ekundayo, Omoboye, Olumide Owolabi, Arias, Anthony Arguelles, Adiobo, Amayana, De Neve, Stefaan, Ongena, Marc, Martins, José C., Höfte, Monica

“…Summary Pseudomonas isolates from tropical environments have been underexplored and may form an untapped reservoir of interesting secondary metabolites. In…”
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Severity of anthracnose and virus diseases of water yam (Dioscorea alata L.) in Nigeria I: Effects of yam genotype and date of planting by Egesi, C.N., Onyeka, T.J., Asiedu, R.

“…Anthracnose and virus diseases exert devastating impacts on yam production in many tropical regions of the world where the crop contributes to food security…”
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