Knowledge of the genetic relationships and variability among cultivated germplasm is important for facilitating the transfer of useful genes and maximizing the use of available germplasm resources. In this study, random amplified polymorphic DNA (RAPD) markers were used to assess genetic diversit...
Mignouna, H.D.
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Ng, N.Q.
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Ikea, J.
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Thottappilly, G.
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[Genetic diversity in cowpea as revealed by random amplified polymorphic DNA]
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Genetic diversity in cowpea as revealed by random amplified polymorphic DNA
Grain yield of maize (Zea mays L.) in the tropics are generally low and information on combining ability among tropical maize inbred lines has not been reported for West Africa. This study was conducted to estimate combining abilities of maize inbred lines developed for West Africa. Crosses obtai...
Kim, S.K.
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Ajala, S.O.
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[Combining ability of tropical maize germplasm in West Africa II. Troppical vs temperate x tropical origins]
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Combining ability of tropical maize germplasm in West Africa II. Troppical vs temperate x tropical origins
Banana weevil (Cosmopolites sordidus Germar) is a major limiting factor in the cultivation of plantains and bananas (Musa spp. L.) in sub-Saharan Africa. The larvae damage the crop by tunneling in the corm. Chemical control is feasible but not sustainable, whereas host plant resistance is safe an...
Ortiz, R.
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Vuylsteke, D.R.
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Dumpe, B.
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Ferris, R.S.B.
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[Banana weevil resistance and corn hardness in Musa germplasm]
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Banana weevil resistance and corn hardness in Musa germplasm
Ortiz, R.
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Vuylsteke, D.R.
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Crouch, H.
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Crouch, J.
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[TM3x: triploid black sigatoka resistant Musa hybrid germplasm]
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TM3x: triploid black sigatoka resistant Musa hybrid germplasm
A multilocational evaluation trial comprising 18 Musa genotypes was carried out from 1991 to 1994 in three representative locations in the humid forest (Onne, Nigeria and M'Balmayo, Cameroon) and the Forest-savanna Transstion (Ibadan, Nigeria) Zones of West and Central Africa. The main objective ...
Cauwer, I. de
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Ortiz, R.
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Vuylsteke, D.R.
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[Genotype by environment interaction in Musa germplasm revealed by multisite evaluation in subSaharan Africa]
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Genotype by environment interaction in Musa germplasm revealed by multisite evaluation in subSaharan Africa
The use of ploidy manipulations in potato breeding has been successfully applied by breeders at the International Potato Center (CIP) as a tool for germplasm enhancement and for the introduction of desirable genes of wild species into the cultivated gene pool. This methodology consists in reducin...
Ortiz, R.
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Iwanaga, Masaru
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Peloquin, S.J.
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[Breeding potatoes for developing countries using wild tuber bearing Solanum spp. and ploidy manipulations]
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Breeding potatoes for developing countries using wild tuber bearing Solanum spp. and ploidy manipulations
Tissue culture is increasingly being used as a vehicle for the safe exchange of Musa germplasm. However, certain pathogens, e.g banana bunchy-top virus (BBTV), may pass undetected through in vitro culture. To meet the urgent need for introducing new desired germplasm for Musa breeding and reduced...
Vuylsteke, D.R.
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Schoofs, J.
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Swennen, R.
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Adejare, G.
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Ayodele, M.
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Langhe, E. de
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[Shoottip culture and thirdcountry quarantine to facilitate the introduction of new Musa germplasm into West Africa]
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Shoottip culture and thirdcountry quarantine to facilitate the introduction of new Musa germplasm into West Africa
Banana and plantain (Musa spp.) are the fourth largest food commodity after rice, wheat, and milk in terms of the gross value of production (CGIAR 1992). They are produced in the humid tropics of many developing economies; about 74 million tons are produced annually (FAO 1991).
Vuylsteke, D.R.
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Ortiz, R.
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[Plantain derived diploid hybrids (TMP2x) with black sigatoka resistance]
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Plantain derived diploid hybrids (TMP2x) with black sigatoka resistance
Plantains (Musa spp., AAB group) are an important food crop and an integral component of the farming systems in the lowland humid forest zone of West and Central Africa. A group of 24 plantain cultivars, representing the major variability in West Africa, was evaluated for nine quantitative charac...
Swennen, R.
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Vuylsteke, D.R.
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Ortiz, R.
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[Phenotypic diversity and pattern of variation in West African plantains (Musa spp. AAB group)]
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Phenotypic diversity and pattern of variation in West African plantains (Musa spp. AAB group)