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Ng, S.Y.C.Ng, N.Q.[Germplasm conservation in food yams (Dioscorea spp.): constraints, application and future prospects]Germplasm conservation in food yams (Dioscorea spp.): constraints, application and future prospects
Autor: Ng, N.Q.

Many successful wide crosses among Asiatic cultivated Vigna species and between them and a wild species, V. trilobata, have been reported However, despite many attempts to cross the African cultivated Vigna species with wild Vigna species and the Asiatic cultivated Vigna species, there has been n...


Ng, N.Q.[Wide crosses of Vigna food legumes]Wide crosses of Vigna food legumes

Cowpea (V. unguiculata) represents the main food legume in tropical Africa. Germplasm collecting missions launched over the past 10 years have provided genebanks with a wide array of variability within the cultivated and wild taxa of the species. Based on detailed studies on morphological diversi...


Padulosi, S.Ng, N.Q.[Origin, taxonomy and morphology of Vigna unguiculata (L.) Walp]Origin, taxonomy and morphology of Vigna unguiculata (L.) Walp

The genus Vigna comprises seven subgenera and sixteen sections. Cowpea, Vigna tingnicnlatti (L.) Walp.. is an important grain legume crop in sub-Saharan Africa and belongs to the subgenus Vigna. section Ctitiang. Morphologically, cowpea genotypes appear very variable. However, a high level of gen...


Fatokun, C.A.Perrino, P.Ng, N.Q.[Wide crossing in African Vigna species]Wide crossing in African Vigna species
Goli, A.E.Begemann, F.Ng, N.Q.[Germplasm diversity in bambara groundnut and prospects for crop improvement]Germplasm diversity in bambara groundnut and prospects for crop improvement
Autor: Ng, N.Q.

The history of the Genetic Resources Unit at the International Institute of Tropical Agriculture (IITA) was highlighted. By 1980, the unit engaged in characterization and evaluation of germplasm information. In order to strengthen the units activity and provide a better knowledge of Vigna, the go...


Ng, N.Q.[Recents developments in cowpea germplasm collection, conservation, evaluation and research at the Genetic Resources Unit]Recents developments in cowpea germplasm collection, conservation, evaluation and research at the Genetic Resources Unit

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