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Journal Article 1994

Breeding of cassava for low cyanogenic potential: problems, progress and prospects

Autor: Dixon, A. Asiedu, Robert Bokanga, M.

The starchy staples of cassava (tuberous roots) provides more than half the calories consumed by more than 200 million people in sub-Saharan Africa, and the leaves are often used as a vegetable providing protein, vitamins and minerals. The cyanogenic potential of cassava has often been cited as a...

Enlace original: https://cgspace.cgiar.org/handle/10568/100934

Investigación en Agricultura

CASSAVA

GENOTYPES

BREEDING

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Dixon, A. , Asiedu, Robert , Bokanga, M. , [Breeding of cassava for low cyanogenic potential: problems, progress and prospects] , Breeding of cassava for low cyanogenic potential: problems, progress and prospects

Journal Article 2009

Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry

Autor: Obidiegwu, J.E. Rodríguez, E. Ene-Obong, E.E. Loureiro, J. Muoneke, C. Santos, C. Kolesnikova-Allen, M. Asiedu, Robert

Dioscorea alata L. is a highly important crop, widely distributed in the humid and semi-humid tropics. Flow cytometry was used to determine the ploidy levels of 74 D. alata genotypes collected mainly from West African countries. Sixty three of the genotypes were found to be tetraploid, one was he...

Enlace original: https://cgspace.cgiar.org/handle/10568/90196

Investigación en Agricultura

BREEDING

DIOSCOREA ALATA

FLOW CYTOMETRY

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Obidiegwu, J.E. , Rodríguez, E. , Ene-Obong, E.E. , Loureiro, J. , Muoneke, C. , Santos, C. , Kolesnikova-Allen, M. , Asiedu, Robert , [Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry] , Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry

Journal Article 2008

Genetic variation and genotype x environment interaction in yams (Dioscorea spp.) for root colonization by arbuscular mycorrhiza

Autor: Dare, M.O. Abaidoo, R.C. Fagbola, O. Asiedu, Robert

Root colonization by arbuscular mycorrhiza (AM) enhances nutrient acquisition by plants and could benefit the production of yam (Dioscorea spp.). The variation in AM colonization in yam genotypes was evaluated in two experiments at four locations (Ibadan, Onne, Abuja and Ubiaja) in different agro...

Enlace original: https://cgspace.cgiar.org/handle/10568/90824

Investigación en Agricultura

ARBUSCULAR MYCORRHIZAL COLONIZATION

BREEDING

GENOTYPE BY ENVIRONMENT INTERACTION

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Dare, M.O. , Abaidoo, R.C. , Fagbola, O. , Asiedu, Robert , [Genetic variation and genotype x environment interaction in yams (Dioscorea spp.) for root colonization by arbuscular mycorrhiza] , Genetic variation and genotype x environment interaction in yams (Dioscorea spp.) for root colonization by arbuscular mycorrhiza

Journal Article 2018-06-27

Can parentage analysis facilitate breeding activities in root and tuber crops?

Autor: Norman, P.E. Asfaw, A. Tongoona, P.B. Danquah, A. Danquah, E.Y. Koeyer, D. de Asiedu, Robert

Controlled pollination in root and tuber crops is challenging. Complex ploidy, cross-incompatibility, erratic flowering patterns, outcrossing, etc., limit the efficiency of breeding progress in these crops. Half-sib breeding that involves random pollination among parents is a viable method to har...

Enlace original: https://cgspace.cgiar.org/handle/10568/96137

Investigación en Agricultura

DNA

PEDIGREE

ROOT CROPS

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Norman, P.E. , Asfaw, A. , Tongoona, P.B. , Danquah, A. , Danquah, E.Y. , Koeyer, D. de , Asiedu, Robert , [Can parentage analysis facilitate breeding activities in root and tuber crops?] , Can parentage analysis facilitate breeding activities in root and tuber crops?

Journal Article 2009

Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set

Autor: Obidiegwu, J.E. Loureiro, J. Ene-Obong, E.E. Rodríguez, E. Kolesnikova-Allen, M. Santos, C. Muoneke, C. Asiedu, Robert

The Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly importantcrop, widely distributed in the humid and semi-humidtropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African coun...

Enlace original: https://cgspace.cgiar.org/handle/10568/90195

Investigación en Agricultura

BREEDING

DIOSCOREA CAYENENSIS/D. ROTUNDATA

FLOW CYTOMETRY

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Obidiegwu, J.E. , Loureiro, J. , Ene-Obong, E.E. , Rodríguez, E. , Kolesnikova-Allen, M. , Santos, C. , Muoneke, C. , Asiedu, Robert , [Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set] , Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set

Journal Article 2002

In vitro, greenhouse, and field assessment of cassava lines for resistance to anthracnose disease caused by colletotrichum gloeosporiodes f. sp. Manihotis

Autor: Fokunang, C.N. Dixon, Alfred G.O. Ikotun, T. Asiedu, Robert Tembe-Fokunang, E.A. Akem, C.N.

Fifty-three cassava lines were selected from breeding populations at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria and screened in vitro for resistance to cassava anthracnose disease (CAD). The in vitro inoculation of stem cuttings with the fungus Colletotrichum gloe...

Enlace original: https://cgspace.cgiar.org/handle/10568/99951

Investigación en Agricultura

BREEDING

FUNGI

CASSAVA

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Fokunang, C.N. , Dixon, Alfred G.O. , Ikotun, T. , Asiedu, Robert , Tembe-Fokunang, E.A. , Akem, C.N. , [In vitro, greenhouse, and field assessment of cassava lines for resistance to anthracnose disease caused by colletotrichum gloeosporiodes f. sp. Manihotis] , In vitro, greenhouse, and field assessment of cassava lines for resistance to anthracnose disease caused by colletotrichum gloeosporiodes f. sp. Manihotis

Journal Article 2012-02

Genetic and phenotypic diversity in a germplasm working collection of cultivated tropical yams (Dioscorea spp.)

Autor: Sartie, A.M. Asiedu, Robert Franco, J.

A working collection of yam (Dioscoreaspp.) comprising 53 landraces and seven improved cultivars of four species (D. alata L., D. cayenensis Lam., D. dumetorum (Kunth) and D. rotundata Poir.) was evaluated for phenotypic and genetic diversity. The evaluation involved field assessment of 24 morpho...

Enlace original: https://cgspace.cgiar.org/handle/10568/77421

Investigación en Agricultura

YAMS

BREEDING

TUBER

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Sartie, A.M. , Asiedu, Robert , Franco, J. , [Genetic and phenotypic diversity in a germplasm working collection of cultivated tropical yams (Dioscorea spp.)] , Genetic and phenotypic diversity in a germplasm working collection of cultivated tropical yams (Dioscorea spp.)

Journal Article 2011

In vitro androgenesis in Dioscorea rotundata Poir

Autor: Adesoye, A.I. Azuh, V.O. Gueye, B. Sartie, A.M. Asiedu, Robert

Conventional breeding takes several years to achieve homozygosity in yam. Anther culture technology is a rapid and viable alternative for the development of homozygous plants, therefore optimizing key parameters for the establishment of an efficient protocol for yam anther culture is indispensabl...

Enlace original: https://cgspace.cgiar.org/handle/10568/89377

Investigación en Agricultura

YAMS

BREEDING

ANDROGENESIS

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Adesoye, A.I. , Azuh, V.O. , Gueye, B. , Sartie, A.M. , Asiedu, Robert , [In vitro androgenesis in Dioscorea rotundata Poir] , In vitro androgenesis in Dioscorea rotundata Poir

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Resultados de búsqueda

[U18ArtNormanParentageInthomDev.pdf]