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Journal Article 2010

Colchicine-induced variations in survival rate and morphological characteristics of water yam (Dioscorea alata)

Autor: Ajayi, A.T. Adesoye, A.I. Asiedu, Robert Sartie, A.M.

The effects of 0.2% aqueous solution of colchicine on the survival rate and morphological features of five accessions of Dioscorea alata were investigated. Sprouting buds of two month old plants were treated with 0.2% colchicine and their performances were monitored until maturity. Survival of bu...

Enlace original: https://cgspace.cgiar.org/handle/10568/89348

Investigación en Agricultura

DIOSCOREA ALATA

DROUGHT TOLERANCE

POLYPLOIDY

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Ajayi, A.T. , Adesoye, A.I. , Asiedu, Robert , Sartie, A.M. , [Colchicine-induced variations in survival rate and morphological characteristics of water yam (Dioscorea alata)] , Colchicine-induced variations in survival rate and morphological characteristics of water yam (Dioscorea alata)

Journal Article 2013-06

Incidence and diversity of mixed viruses lower in yam tubers and tuber sprouts compared with field leaf samples: Implications for virusfree planting material control strategy

Autor: Eni, A. Hughes, J. Asiedu, Robert Rey, M.

Millions of people around the world, particularly in West Africa, depend on yam for food and income, however global yam production has been fluctuating since 2007. Virus infections contribute to yam yield losses and the occurrence of mixed virus infections is potentially catastrophic. Planting of...

Enlace original: https://cgspace.cgiar.org/handle/10568/77453

Investigación en Agricultura

VIRUS

INFECTION

YAMS

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Eni, A. , Hughes, J. , Asiedu, Robert , Rey, M. , [Incidence and diversity of mixed viruses lower in yam tubers and tuber sprouts compared with field leaf samples: Implications for virusfree planting material control strategy] , Incidence and diversity of mixed viruses lower in yam tubers and tuber sprouts compared with field leaf samples: Implications for virusfree planting material control strategy

Journal Article 2008

Storage life of eleven cultivars of white yam (Dioscorea rotundata) grown with or without NPK fertilizer and the relationship with residual soil NPK

Autor: Asadu, C.L.A. Egbobe, O.B. Asiedu, Robert

A major constraint facing yam producers in southeastern Nigeria is poor storage of the tubers. Farmers in the area also opine that yams grown with mineral fertilizers tend to have shorter shelf life than those grown without mineral fertilizers. This study was undertaken to evaluate the effect of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/90913

Investigación en Agricultura

YAMS

NPK FERTILIZERS

SHELF LIFE

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Asadu, C.L.A. , Egbobe, O.B. , Asiedu, Robert , [Storage life of eleven cultivars of white yam (Dioscorea rotundata) grown with or without NPK fertilizer and the relationship with residual soil NPK] , Storage life of eleven cultivars of white yam (Dioscorea rotundata) grown with or without NPK fertilizer and the relationship with residual soil NPK

Journal Article 2011-09

Development of mapping populations for genetic analysis in yams (Dioscorea rotundata and D. alata)

Autor: Sartie, A.M. Asiedu, Robert

Progress is being made at the International Institute for Tropical Agriculture to develop molecular tools for marker-assisted selection that would complement and expedite conventional breeding approaches for genetic improvement of yams (Dioscorea spp.). F1 mapp...

Enlace original: https://cgspace.cgiar.org/handle/10568/90329

Investigación en Agricultura

DIOSCOREA ALATA

DIOSCOREA ROTUNDATA

HYBRID IDENTIFICATION

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Sartie, A.M. , Asiedu, Robert , [Development of mapping populations for genetic analysis in yams (Dioscorea rotundata and D. alata)] , Development of mapping populations for genetic analysis in yams (Dioscorea rotundata and D. alata)

Journal Article 1992

Root and tuber crop breeders and cropping systems researchers join forces

Autor: Dixon, A. Mutsaers, H. Asiedu, Robert

Enlace original: https://cgspace.cgiar.org/handle/10568/98643

Investigación en Agricultura

TUBERS

CROP IMPROVEMENT

CROP RESEARCH

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Dixon, A. , Mutsaers, H. , Asiedu, Robert , [Root and tuber crop breeders and cropping systems researchers join forces] , Root and tuber crop breeders and cropping systems researchers join forces

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 2002

Identification and potential application of RAPD markers for anthracnose resistance in water yam (Dioscorea alata)

Autor: Mignouna, H.D. Abang, Mathew M. Onasanya, A. Agindotan, A. Asiedu, Robert

Anthracnose, caused by Colletotrichum gloeosporioides, is the most severe foliar disease of water yam (Dioscorea alata) worldwide. The tetraploid breeding line, TDa 95/00328, is a source of dominant genetic resistance to the moderately virulent fast growing salmon (FGS) strain of C. gloeosporioid...

Enlace original: https://cgspace.cgiar.org/handle/10568/99965

Investigación en Agricultura

DIOSCOREA ROTUNDATA

POLLINATION

TUBERS

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Mignouna, H.D. , Abang, Mathew M. , Onasanya, A. , Agindotan, A. , Asiedu, Robert , [Identification and potential application of RAPD markers for anthracnose resistance in water yam (Dioscorea alata)] , Identification and potential application of RAPD markers for anthracnose resistance in water yam (Dioscorea alata)

Journal Article 2002

First report of Nattrassia mangiferae as a postharvest fungal pathogen of white yam (Dioscorea rotundata) in Nigeria

Autor: Sangoyomi, T. Ekpo, E. Asiedu, Robert

Enlace original: https://cgspace.cgiar.org/handle/10568/92715

Investigación en Agricultura

FUNGAL PATHOGENS

TUBERS

INOCULATION

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Sangoyomi, T. , Ekpo, E. , Asiedu, Robert , [First report of Nattrassia mangiferae as a postharvest fungal pathogen of white yam (Dioscorea rotundata) in Nigeria] , First report of Nattrassia mangiferae as a postharvest fungal pathogen of white yam (Dioscorea rotundata) in Nigeria

Journal Article 2002

Effect of day length on the development of tubers in yams (Dioscorea spp.)

Autor: Shiwachi, H. Ayankanmi, T.G. Asiedu, Robert

Sixty-day-old plants of white Guinea yam (Dioscorea rotundata), water yam (D. alata) and yellow Guinea yam (D. cayenensis) were exposed to 10 h day lengths (short days) for 15 and 30 days. Short-day treatment applied at the early growth stage of yams promoted the enlargment of tubers, but the res...

Enlace original: https://cgspace.cgiar.org/handle/10568/103630

Investigación en Agricultura

DIOSCOREA ROTUNDATA

DIOSCOREA ALATA

DIOSCOREA CAYENENSIS

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Shiwachi, H. , Ayankanmi, T.G. , Asiedu, Robert , [Effect of day length on the development of tubers in yams (Dioscorea spp.)] , Effect of day length on the development of tubers in yams (Dioscorea spp.)

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Resultados de búsqueda

[U13ArtEniIncidenceNothomDev.pdf]

[U92ArtAsieduRootNothomNodev.pdf]

[U18ArtNormanParentageInthomDev.pdf]